Abu Dhabi, United Arab Emirates. STANDARD CONSTRUCTION SPECIFICATIONS (PART 1 - ROADS, Second Edition 2020)

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3.  Dual ring configuration to the extent possible
4.  Easy to install and operate
5.  Compact design

A digital transmission system, based on state-of-the-art fibre optic technology, shall be required to
carry all voice, data, LAN and video information, as shown in the Contract Plans and directed by the
Engineer. Usage of copper cable for long-distance transmission purposes that exceeds 90 m shall
not be allowed due to the inherent disadvantages of copper cable (attenuation of signals,
susceptibility to electromagnetic influences and high costs for cable sizes necessary to carry the
required amount of signals).

An IP-based transmission system with Ethernet switches shall carry all channels for voice, data, LAN
and video communications. As virtually all information is transmitted via the IP network, the system
shall be implemented using two physically independent cable routes wherever applicable and
possible and as approved by the Engineer. In case of a partial network failure, this will ensure that
the remaining part is not affected. The network shall be logically configured by VLANs (virtual local
area network) which allow separation of the various types of flow (video, voice, data, order, etc.) and
allows affecting a different priority level to them so that there is no disturbance in the transfer of
information as approved by the Engineer.

9.6.2.9

Network Management System

Subcontractor shall furnish, install, configure, and integrate a network management system (NMS)
to monitor, manage and administrate the traffic management system communication network
(TMSCN) as shown in the Contract plans, as directed by the Engineer. The NMS shall be compatible
with the

Employer’s legacy NMS. The NMS shall be a powerful and flexible open platform network

infrastructure (hardware and software) management tool, providing enhanced features to manage
the TMSCN connected systems and components, and shall include all necessary NMS equipment -
servers, switches, routers, firewalls, etc as shown on the

Subcontractor’s approved Drawings. Such

as system fibre and Ethernet switches regardless of the model, shall deliver customizable network
management capabilities that scale to meet the needs of the largest and advanced networks.

NMS shall include network configuration and change management functionality, giving control over
bulk configurations and scheduling. It shall be able to create detailed audit trails of network changes,
to perform firmware upgrades and to manage the software configuration of the networked devices.
NMS  shall  be  able  to represent  the  status  of the  network  using  several graphics  approach.  NMS
shall  be  fully  client-server  and  supports  multiple  distributed  users  with  varying  access  levels  and
individualized network resource control.

NMS  shall  be  supplied  with  enough  capacity  and  licenses  to  cover  all  the  TMSCN  systems  with
additional  spare  capacity  of  50  %.The  NMS  shall  be  integrated  as  ATMS  component  so  that  the
operator in the control room can see and take action on the alarm coming from NMS. NMS shall
support open protocols to permit the control of multiple suppliers. NMS shall visualize, monitor and
pro-actively manage the  network,  including  analyzing  traffic  loads  and  generating statistical trend
reports. NMS shall support multiple vendors, softwares and ensure compatibility with major suppliers
including but not limited to: Cisco, Moxa and Juniper.

a. Field Equipment Cabinet Remote Switch

Subcontractor shall furnish, install, and configure a field equipment cabinet remote switch (FRS)

–

access field switch - in field equipment cabinets (FEC) to interface the ITS field devices with the fibre
optics or Ethernet communication backbone as directed by Engineer.

FRS switch shall be an industrial class, fan less, modular and layer 2 managed fibre Ethernet switch.
As a minimum, standard layer 2 switches are required, however, layer 3 switches are acceptable or
desired. Switch shall be of reconfigurable model in which the type of ports and modules of each
switch can be configured as needed based on the location of the switch as approved by the Engineer
and as shown in Contract plans. Subcontractor will be requested to keep some modules as spare to
be used when needed as directed by the Engineer. FRS shall comply with the following
requirements:

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1. General requirements:

FRS shall include, as minimum, three of one (1) Gbps single mode fibre
ports for the interface with the fibre backbone.

ii.

FRS shall include, as a minimum, a combination of four (4) ports or more
to connect the ITS devices on the field. This combination might vary from
one location to another as following: four (4) fibre ports (8 fibre cores) 100
BaseF(x), and 4 RJ45 ports100 BaseT(x) or combination of Fibre and RJ4
ports  based  on  every  site  condition  and  as  approved  by  the  Engineer.
Switch  shall  be  capable  to  accept  at  least  another  module  with  four  (4)
additional fibre (8 fibre cores) or four (4) additional RJ45 ports as required.

iii.

Ports configuration of the FRS switch may vary from one location to
another as needed and as approved by the Engineer. However, in most
cases, a combination of two (2) fibre ports (4 fibre cores) and two (2) RJ-
45 ports will be required per each module. Wherever only 2 RJ-45 ports
or 2 fibre ports will be used, the other two (2) spare ports shall be fibre.
For the spare modules, 65 % shall be supplied with 4 fibre ports (S.M), 30
% with combination ports, two (2) ports RJ-45 and two (2) ports fibre, 5 %
all RJ-45 ports as approved by the Engineer.

iv.

For Signalized junctions, the FRS shall include, as a minimum, a
combination of eight (8) ports or more. This combination might vary as
directed by the Engineer.

Power  supply  adaptors  and  accessories  of  the  FRS  switch  shall  be
provided  by  the  same  manufacturer  and  shall  be  considered  within  the
FRS switch cost.

vi.

Power supply and fibre modules environmental specs shall be the same
as the switch environmental specs.

vii.

1 Gbit fibre port shall be capable of aggregating and transmitting at a
minimum distance of 30 km.

viii.

Fibre modules cost shall be considered within the FRS switch cost.

ix.

Spare fibre modules shall be supplied and kept as spare at locations as
directed by the Engineer.

Fibre modules shall be supplied by the same switch manufacturer and
shall comply with the environmental specs of the switch or as directed by
the Engineer.

xi.

FRS switch shall be capable to function in ring and star topologies.

xii.

FRS switch shall require no infield electrical or optical adjustments or inline
attenuators to ease installation.

xiii.

FRS switch shall provide power, link speed, and fibre port status indicating
LED’s for monitoring proper system operation. Switch shall also provide a
contact closure for a loss of fibre-fibre alarm.

xiv.

Support IEEE 802.1X (authentication). Moreover, other static port lock
solutions shall be implemented as approved by the Engineer. Switch shall
be configured to protect static MAC address for a specific port.

xv.

Support IEEE 802.1Q (VLans).

xvi.

FRS switch shall provide automatic resettable solid state current limiters
and independent voltage regulators fibre to reduce the chance of a “single
point of failure” of the system.

xvii.

FRS switch shall have a dual power supply inputs.

2. FRS switch shall provide a console connection for local management of the device. Data

specifications:

Data interface: Ethernet IEEE802.3

ii.

Data rate: 10/100 Mbps

iii.

Port: RJ45

3. Optical specifications: Optical fibre: 100 BaseFX, 1000 BaseSFP 9/125 micron single

mode (duplex) or SFP+ as approved by the Engineer.

4. Electrical specifications

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Power supply unit: less than 50 W

ii.

Industrial model dual power supply

iii.

AC or DC operation

5. Environmental specifications:

MTBF: at least 150,000 Hours

ii.

Operating Temp: 0

C to +75

iii.

Relative humidity: 10 % to 95 % no condensing.

6. Regulatory agencies/approvals and listings: As a minimum, FCC Part 15 Class A, EN

55022 Class A, EN 50121-4, safety: UL 508, UL Class1 Div2 and EN 61000-4-(2 to 6)

7. Technology standards and protocols: Shall support open standards and protocols.

Proprietary protocols shall not be used. As a minimum, SNMP V1/V2/V3, HTTP/TFTP,
DHCP, Port security IP and MAC, 802.1x, IEEE 802.1Q, GMRP, IEEE 802.3x, IEEE
1588, IEEE 802.1D, IGMP Snooping, PIM-DM, PIM-SM, RSTP, QoS

8. Physical features:

Industrial fanless switch

ii.

Minimum housing protection shall be IP20

b. Ethernet Fibre Transceiver

Subcontractor shall furnish, install, configure, and test device Ethernet fibre transceivers as approved
by the Engineer, to convert the RJ45 port of the ITS device to a fibre port in order to connect with
the access field switch if the distance between them is more than 90 m. It shall be industrial type and
capable to survive under a temperature of 75

C as a minimum. This item will not be required if the

ITS device will be facilitated with SFP module port.

c. Wireless Ethernet Bridge

Subcontractor shall furnish, install, configure, and test a high speed wireless Ethernet bridge (WEB)
as  directed  by  the  Engineer.  WEB  shall  be  a  microwave  system  that  operates  on  an  approved
frequency  channel,  and shall  include  an  in-door  unit  (IDU),  an  out-door unit  (ODU),  a  microwave
antenna,  a  RF  cable  and  network  management  tools  (NMT).  ODU  shall  include  radio  data
transmitter/  receiver  modules  and  may  be  integrated  with  an  IDU  that  is  compliant  with  the
requirements in this specification. WEB shall be compliant with the IEEE 802.3, 802.3u and 802.3d
Ethernet standards.

WED can also be supplied as an integrated assembly including the ODU and microwave antenna. If
supplied as such, this item shall include outdoor Category 6 cable to connect the assembly to the
cabinet and Ethernet switch.

Assembly shall include provision for system configuration, setting for antenna alignment, ability to
set up tools for network management, and ability to monitor the system alarm and system
performance testing. Subcontractor shall provide a fully operational assembly with all cabling and
terminations matched to support the selected components.

d. Fibre Optic Cable

Subcontractor shall furnish, install, splice and test all the required fibre optic cable as shown on the
Contract plans and as approved by the Engineer. All splicing kits, splice machines, OTDR machines,
fibre optic cable caps, moisture/water sealant, terminators, splice trays, pigtails and accessories to
complete the fibre optic network shall be provided as incidentals.

All equipment for installation, splicing and testing shall be provided by the Subcontractor. In general
96, 48, 24, 12, and 6 core single mode fibre (SMF) optical cables are used in the Emirate of Abu
Dhabi. Typically a 48 core S.M fibre cable will be required for the backbone and 12 S.M as access
cable as directed by the Engineer.

Fibre optic cable shall be suitable for installation in an underground conduit environment including
constant immersion in water. All cables shall be loose-tube, non-metallic construction. Cables shall
include a double armoured outer jacket layer to provide environmental protection from the weather
and rodents.

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All fibres in the fibre optic cable shall be spliced and/or terminated as indicated on the Contract plans
and as specified herein. Fibre cuts and splices shall only be made at the pullbox nearest the traffic
signal controller, ITS equipment, field equipment cabinet, communications hub, as directed by the
Engineer.

Quantity of fibres within the cable shall be as shown on the Contract plans, as required in the
Particular Specifications or as indicated in the Bills of Quantities.

Fibre optic cable shall be provided in continuous lengths. Each fibre shall be pulled from the same
optical waveguide form and shall be free of splices. Each optical fibre shall consist of a doped silica
core surrounded by a concentric silica cladding. Use of any other materials is not allowed unless
otherwise approved by the Engineer.

Subcontractor shall perform all necessary works to provide a complete end to end cable connection
between the field device and the nearest field equipment cabinet as per the manufacturer
requirements and as approved by the Engineer. Subcontractor shall establish fibre optic links
between the field equipment cabinet to the nearest splice pull box. Subcontractor shall perform the
required splicing to connect to the nearest field equipment cabinet that shall house the fibre remote
switch, and that shall be connected directly to the traffic control centre through the fibre optic network
as shown in the Contract plans and as approved by the Engineer.

Subcontractor shall install additional fibre segments in case the existing segment exceeds 60 % of
fibre usage. For all new cables/segments, the fibre usage shall not exceed 40 % of the total fibres
per each cable.

Subcontractor shall conduct a study for the required fibre usage in the locations for all new
installations and prepare all fibre optic connection diagrams, splice tables, and fibre usage sheets to
reflect available, reserved and used fibres in each segment that shall be submitted to the Engineer
for review and approval. At least 2 dark fibres shall be reserved in each fibre segment for other
agency uses unless otherwise approved by the Engineer. Optical fibre cables shall also comply with
the following requirements:

1. Attenuation: Nominal attenuation shall be 0.4 db/km maximum at a wavelength of 1300 nm.

Attenuation shall not exceed 0.3 db/km maximum at a wavelength of 1550 nm.

2. Bandwidth: Single mode fibres shall have a maximum dispersion of 3.5 pico

seconds/nanometre km at 1300 nm.

3. Testing: All optical fibres shall be proof tested by the fibre manufacturer at a minimum load

of 100 kpsi. All optical fibres shall be 100 % attenuation tested at the factory for compliance
with performance specifications described herein. The attenuation of each fibre shall be
provided with each cable reel.

4. Fibres: Quantity of fibres contained in the fibre optic cable shall be 48 in 4 fibres

12 tubes

configuration unless otherwise approved by the Engineer, and 12 in 4 fibres x 3 tubes the
fibres shall have a nominal core diameter of 8 to 10 microns. Fibre outer diameter shall be
125 plus or minus 3 microns. Inside Abu Dhabi City Island, the Quantity of fibre optic cable
shall match the existing fibre cable in the city to easy the interface as directed by the
Engineer.

5. Core/clad concentricity error: Core/clad concentricity error shall be within plus or minus 0.5

micron.

6. Primary coating: Each fibre shall have a high density polymer coating of a minimum of 250

micron to prevent abrasion of the fibre surface or as approved by the Engineer.

7. Buffering: Cable shall be of gel-filled, loose tube construction with up to 12 buffer tubes

wrapped around a dielectric central strength member. All fibre(s) shall be contained within
buffer tubes, and each buffer tube shall have an inside diameter much greater than the total
diameter(s) of the fibre(s) it supports.

8. Each fibre or group of fibres shall be free-floating within the tubes such that all mechanically

or environmentally induced stress placed upon the cable is de-coupled from the fibres. Air
within the buffer tubes shall be displaced with a gel to prevent entry by water and to facilitate
free movement of the fibre(s) within.

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9. Tensile strength/crush strength: Cable shall be capable of withstanding a pulling tension of

2700 N under load conditions and 600 N under static conditions and a crush resistance of
5000 N/m (length of cable), without changing the characteristics of the optical fibres.
Requirements for a higher pulling tension may be accepted as approved by the Engineer.

10. Bend radius: cable shall be capable of withstanding a bending radius of 15 times its outer

diameter during operation and 15 times its outer diameter during installation without changing
the characteristics of the optical fibres.

11. Cable configuration: Fibre-optic cable shall have a reverse oscillation or planetary stranding

structure. Cables constructed of less than six fibres shall have a buffer tube provided for each
fibre; cables constructed of more than six fibres may have several fibres occupy a buffer tube,
with equal distribution of fibres as far as practical. Jacket construction and the configuration
of the groups shall be such that they can easily be separated at splice points, permitting one
set of fibres to be cut and spliced while the others remain continuous.

12. Subcontractor shall submit proposed cable designs for the Engineer's approval prior to

procurement and installation of cable plant.

13. Cable shall have a water-block tape between the buffer tubes and throughout the remainder

of the cable to prevent entry of water. A binder wrapping strength member of aramid fibres
shall be provided as a final layer prior to application of the outer jacket.

14. Subcontractor shall demonstrate crush and abrasion resistance of final cable design and

adequacy for conduit installation under full tensile loads and multiple bends.

15. Diameter: Outer diameter of each cable shall be less than 20 mm.
16. Colour coding: Each fibre buffer jacket shall be colour coded separately. Within unit tubes or

sub-bundles, each fibre shall have a distinctly different colour coding. Buffer tubes shall be
colour coded in compliance with EIA/TIA-598 "Colour Coding of Fibre Optic Cables". All fibres
shall be colour coded in compliance with EIA/TIA-598 "Colour Coding of Fibre Optic Cables".
In buffer tubes containing multiple fibres, the colours shall be stable during temperature
cycling and not subject to fading or smearing onto each other or into the gel filling material.
Colours shall not cause fibres to stick together.

17. Cable jacket: The outer jacket shall be yellow in colour unless otherwise approved by the

Engineer.

18. Outer jacket shall be constructed of medium density polyethylene with minimum jacket

thickness of 1.4 mm. Jacketing material shall be applied directly over the tensile strength
members and flooding compound. The outer jacket shall be UV and fungus resistant.

19. A permanent marking shall be employed on the outer jacket of the cable which shall show

the date of manufacture and the manufacturer's name. A numerical sequence shall be
marked on the outer jacket, at intervals no greater than 3 m, to facilitate determination of
length of cable and amount of cable remaining on the reel. Height of the marking shall be 2.5
mm nominal. In addition, cable tags with permanent markings shall be provided that include
the words "Owners Name - Fibre-Optic Cable" at all pullbox and cable access locations.

20. Optical connectors: All permanent connector installations shall utilize factory installed/tested

connectors. Field installed connectors shall not be allowed.

21. Optical connectors furnished for installation on optical patch cords and pigtails shall be

compatible with the connector sleeves on the fibre distribution panels.

22. Connectors shall meet, as a minimum, the following specifications:

Attenuation: (average, 3 readings, 120 degree spacing): 0.4 dB/km, maximum @
1300 nm

ii.

Mechanical stability: 0.3 dB change, maximum

iii.

Tensile stability: 0.3 dB change, maximum

iv.

Thermal stability: (5 cycles, -20

to +60

C) 0.4 dB change,

Maximum splice losses shall not exceed 0.02 dB

23. Environmental: Cable shall be capable of withstanding the following environmental

conditions:

Installation: -30

to +70

ii.

Storage/operation: -40

to +70

iii.

Humidity: 0 to 100 %

24. Fibre optic testing:

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Fibre optic splices: Splice losses shall not exceed 0.02 dB. Subcontractor shall
provide evidence of each splice performed and submit to the Engineer for
approval.

ii.

Optical time domain reflectometer (OTDR) testing: All fibre links shall be tested
bi-directionally after splicing and termination. All fibres shall be tested for attention
loss using an OTDR set to 2-point loss measurement parameters. Marker points
shall be placed at the beginning and end of each backscatter signature recorded
by

the OTDR machine in accordance with the OTDR machine’s manufacturer

instructions.

iii.

Each fibre shall have a unique identification and numbering sequence which shall
be submitted to the Engineer for review and approval. Each trace shall contain as
a minimum:

a)  Cable/sheath length. This is not the same as optical fibre length
b)  2-point dB loss
c)  Attenuation in dB/km
d)  Fibre type
e)  Wavelength used
f)  Pulse width selection
g)  Fibre/cable identification

iv.

Stored fibre trace shall allow full manipulation of the trace when viewed with the
PC emulation software. Both a hard copy and a soft copy of each trace shall be
submitted to the Engineer for review and approval.

Proper pulse width selection is required to minimize attenuation dead zone effect
(10 ns pulse: SM dead zone=10m). Any links which fail the above tests shall be
replaced and retested by the Subcontractor at his own expenses.

vi.

All links which contain splice points or interconnect points shall also contain and
additional “Events Display Table” to accompany the OTDR trace. This display
shall show the distance to the events, distance between multiple events, loss of
each event in dB, and a description of the event (reflective, non-reflective, gains,
and cable end).

e. Fibre Optic Patch Panel

Subcontractor shall furnish, install, splice and test a 24-port (12 duplex ports) or 48-port (24 duplex
ports) fibre optic patch panel to be located in each field equipment cabinet, as approved by the
Engineer.

Subcontractor shall furnish, install, splice, and test a 12-port (6 duplex ports) or 6-port (3 duplex)
fibre optic patch panel with IP-66 protection on or within the video surveillance camera pole and
wherever needed, as directed by the Engineer.

Each panel shall be equipped with all required patch cords, pigtails, connectors, mounting
accessories as an integrated part of the panel. In addition, 25 % additional spare patch cords shall
be furnished as part of each patch panel. No separate measurement or payment shall be made for
patch cords and any costs incurred by the Subcontractor in so doing shall be considered incidental
to the cost per fibre optic patch panel.

f. Fibre Optic Patch Cords

Fibre optic patch cords shall be a rugged type provided to cross connect the fibre patch panel to the
fibre-optic transmission equipment. These jumpers shall be orange in colour for multimode fibre,
yellow in colour for single-mode fibre and shall have strain relief on the connectors. Fibre shall have
a 900 micron polymer coating with tight buffer tube, Kevlar strength member and a PVC jacket.

Patch cords shall be sufficient in length plus 1.0 m spare length or as approved by the Engineer.

Optical patch cords shall consist of a section of single fibre, jacketed cable equipped with factory
installed optical connectors at both ends, in single-fibre simplex, dual-fibre duplex or multi-fibre
configurations as required.

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Each jacketed fibre shall have a tensile strength in excess of 222 N.

g. STP CAT-6 Cable

Category  6  (CAT-6)  cables  shall  meet  TIA/EIA-568-B.2-1  requirements.  CAT-6  cable  shall  be
connected to all IP copper interfaces for all Ethernet devices. For all outdoor installations the cable
jacket  shall  be  durable,  high-density  polyethylene  insulation,  PVC  jacket.  CAT-6  cable  shall  be
compact for ease of installation and be able to connect high speed local area networks (LANs) to
transmit  video  and  data.  CAT-  6  shall  be  STP  for  outdoor/field Installations  and  shall  be  UTP for
indoor installations.

CAT-6 shall meet or exceed the following features:

1. Physical characteristics:

Conductors: 23 AWG solid copper

ii.

Insulation:

Plenum: low smoke flame retardant

Thermoplastic (FEP)

Riser and LSZH: polyolefin (PE)

iii.

Cable core: Four twisted pairs cabled around a centre member

iv.

Jacket with rip cord:

2. Cable jacket shall be printed at intervals indicating:

Cable code

ii.

AWG

iii.

Listings (NEC code)

iv.

Verification

Date

vi.

Manufacturing traceability code

3.  Temperature: 5° C to at least 60° C
4.  Transmission characteristics: At least 300 MHz are minimum guaranteed values
5.  DC resistance @ 20° C, max.: 9.38 ohms/100 m

DC resistance unbalance, max.: 5 %

6.  Mutual capacitance, max.: 5.6 nF/100 m
7.  Capacitance unbalance pair to ground, max.: 330 pF/100 m
8.  Input impedance:

100 ± 15 ohms from 1 to 100 MHz

ii.

100 ± 22 ohms from 101 to 200 MHz

iii.

100 ± 32 ohms from 201 to 300 MHz

9. Nominal velocity of propagation (NVP):

Plenum: 72 % @ 10 MHz

ii.

Riser: 68 % @ 10 MHz

10. Propagation delay (skew), max.: 25 ns/100 m
11. Cat 6 cable termination protection: Subcontractor shall be responsible to provide the

terminated cable with guards.

Before a cable is plugged into the camera port, an RJ45 guard shall be used to protect the port
against any unauthorized accidental unplugging and to tightly fix the RJ45 to the camera port. This
guard shall have the following specification as a minimum:

1.  Halogen-free plastic.
2.  Can be exchangeable and reusable.
3.  These guards shall be fixed at the camera ends.
4.  All RJ45 connections shall be protected with a boot of a colour similar to the cable colour.

h. STP Cat-6 Patch Panel

Subcontractor shall furnish, install and terminate multi-port Ethernet STP Cat-6 patch panels in the
FEC cabinets as shown on the Contract plans, as may be required in the Particular Specifications
and as approved by the Engineer. All Ethernet STP CAT6 cables from the ITS field devices shall be

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directly terminated at the outdoor STP CAT6 copper patch panel inside the AFS equipment cabinet.
Patch panel shall meet ANSI/TIA/EIA568A5 performance requirements for STP category 6.
Terminations shall be 568B compliant. Patch panel shall include all required patch cords and patch
cables necessary to connect all equipment to the panel. In addition, 25 % additional spare patch
cords shall be furnished as part of each patch panel. No separate measurement or payment shall
be made for patch cords and any costs incurred by the Subcontractor in so doing shall be considered
incidental to the cost per STP Cat-6 patch panel.

STP Cat-6 patch panels shall be in accordance with the following specifications:

1.  8 Ports RJ-45 STP Cat-6
2.  Patch panel shall be fitted with metal cable manager for convenience of cable management
3.  Highly resistance and inflaming retarding material, Grade UL94-0
4.  Module part shall be fitted with shield, protecting inner IDC contact from irregular working in

rugged environment

5.  Meet or exceed the current T568A and T568B standard
6.  Rustproof metal framework
7.  Dustproof and weather proof housing, IP-66
8.  Enclosed shielded patch panel

9.6.2.10

ITS Electrical and Control Cables

This item provides the electrical supply to the ITS equipment from the field equipment cabinet or
other power sources. It shall comply with all electrical conductor requirements as per Article 9.5.2.4
and in accordance with the applicable sections and clauses of Chapter 10, Lighting and Electrical
Distribution Works.

Electrical conductor shall be at least 3 core, PVC/PVC, steel wire armoured and shall be installed to
maintain  a  voltage  drop  of  less  than  3  %,  and  sized  according  to  the  load  of  the  respective  ITS
equipment.  Cable shall be of outdoor type cross linked polyethylene  (XLPE) semi conductor tape
insulated,  individually  copper  tape  screened,  steel  wire  armoured.  Cables  shall  be  sized
appropriately  to  meet  the  manufacturers  requirements,  and  as  detailed  in  the  Specifications  and
Contract plans.

Cable shall have a bending radius of at least 13 times the overall diameter and shall be able to
operate at temperature range of 0

to 80

Unless specified elsewhere in the Specifications, all system cabling shall be compatible with the
manufacturer requirements. Wherever possible, the manufacture

’s recommended cables shall be

preferred.

9.6.2.11

Cabinets and Enclosures

a. Equipment Cabinet(s)

Equipment  cabinets  (EC)  shall  be  used  to  house  the  system  equipments  and  components  in  the
traffic control centre. Dimensions of each cabinet shall be identical, sufficient to house the system
equipment, as approved by the Engineer. Cabinet shall be of 14 gauge steel un-welded construction.
Cabinet shall have a perforated front door, louvered and perforated side panels, and a louvered and
perforated  rear  door  cooling  fan  units,  sized  to  cool  the  enclosed  equipment  and  rated  at  "quiet
operation"  shall  be  included  in  each  cabinet.  Cabinet  shall  have  lockable  front  and  rear  doors.
Cabinet(s) shall  include  provisions  for  cable  and  conduit  entry through  the  top  and  bottom  of  the
cabinet. All cables shall be neatly harnessed and routed within the cabinet using approved cable
management  techniques.  All  cables  shall  be  labelled  in  accordance  with  ANSI/EIA/TIA  606-A
standards.

Each EC shall be corrosion resistant. Each EC shall be completely ventilated. Each EC shall be
wired from single phase, 240 V AC, 50 Hz power with a power disconnect switch, from the
appropriate power panel. All communications equipment and components in each cabinet shall use
this as the primary source of power. Subcontractor shall be requested to submit a calculation for the

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air follow in each EC in which the number of required fans for ventilation process will be decided as
approved by the Engineer.

Separate terminal blocks shall be provided for each power connection within the cabinet and these
blocks shall be considered subsidiary obligation to the respective Bill of Quantities items.

Each EC shall include frames for equivalent EIA-310-C standard 48.26 cm rack mounting.

Each EC shall have a unique ID plate and shall include a list of all items installed inside the cabinet.

b. Field Equipment Cabinets

Field equipment cabinet (FEC) shall house the video surveillance field equipment and
communications equipment as shown on the Contract plans. FEC shall be provided with fully wired
back panels, with all the necessary terminal boards, wiring, harnesses, connectors and attachment
hardware for each cabinet location. All terminals and panel facilities shall be placed on the lower
portion of the FEC walls below all shelves.

Each FEC shall be provided complete with all internal components, back and side panels, terminal
strips, harnesses, and connectors as well as all mounting hardware necessary to provide for
installation of equipment as described on the Contract plans and as required by the Particular
Specifications.

All FECs shall be identical in size, shape and quality throughout the entire project. In addition, the
FECs shall be equipped internally as specified herein.

Details of the FEC design and equipment layout shall be submitted to the Engineer for review and
approval prior to fabrication.

Each FEC, as a minimum, shall be supplied with the following:

1.  Adjustable shelves, as required
2.  Backpanel
3.  Surge  protection  for  video  connections,  power  connections,  and  communications

connections

4.  Terminal strips
5.  Interconnect harnesses with connectors
6.  Jack for field telephone
7.  On/off light
8.  "Door open" connection to backpanel
9.  Interior holder for FEC documentation as shown on the Contract plans
10. All necessary installation and mounting hardware

Electrical requirements shall include the following items:

1. Backpanel: This panel shall include the following components:

Single phase isolator

–Contractor shall install one isolator unit in each field

equipment cabinet to isolate the main power source from the field
equipment cabinet when needed. Isolator shall be UL listed. Isolator shall
not be affected by ambient temperature, humidity and other environmental
conditions prevailing in the Project region.

ii.

Circuit  breakers  -  Circuit  breakers  shall  be  approved  and  listed  by
Underwriters Laboratories. Operating mechanism shall be enclosed and
the switches shall be marked to indicate whether they are in the closed or
open position. Contacts shall be silver alloy enclosed in an arc quenching
chamber. Each video surveillance field equipment cabinet shall have, as
a minimum, a single-pole, 20-amp circuit breaker. Circuit breaker shall be
unaffected  by  ambient  temperature  range,  relative  humidity,  applied
power,  and  the  shock  and  vibration  range  specified  in  Section  2,
"Environmental  Standards  and  Test  Procedures"  of  NEMA  TS2-1992  or
EMEA standard equivalent. Circuit breaker shall have an interrupt capacity
of 5,000 amperes and insulation resistance of 100 megohms at 500 V DC.

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iii.

Power line surge protection - Power line surge protectors shall be provided
and installed as described below.

2. Standards:

Housing material PBT (Polybutylene terephthalate)

ii.

Inflammability class acc. to UL 94 V0

iii.

Standards for air and creepage distances: DIN VDE 0110-1

iv.

Standards for air and creepage distances: IEC 60664-1: 1992-10

Standards for air and creepage distances: IEC 61643-1

vi.

Surge voltage category III

vii.

Contamination class 2

viii.

Degree of protection: IP20

ix.

Mounting type DIN rail 35 mm

Design DIN rail module, two-section, divisible

xi.

Number of positions 1

xii.

Ambient temperature (operation) -10 °C to 80 °C

xiii.

Message surge protection faulty Optical, remote indicator contact

xiv.

Direction of action 1L-N/PE

3. Protective circuit:

a)  IEC category I + II
b)  EN type T1 + T2
c)  Lightning protection class III-IV /50 kA (TT, TN-C-S)
d)  Nominal voltage UN 240 V AC (230 V AC. 240 V AC)
e)  Arrester rated voltage Uc (L-N) 350 V AC
f)  Arrester rated voltage Uc (L-PEN) 350 V AC
g)  Rated load current 125 A (TA=55°C)
h)  Nominal discharge surge

current In (8/20) μs (L-N) 25 kA

Nominal discharge surge current In (8/20) μs (L-PEN) 25 kA

Lightning test current (10/350) μs, charge 12.5 As

Lightning test current (10/350) μs, specific energy 160.00 kJ/Ω

Lightning test current (10/350) μs, peak value limp 25 kA

m) Protection level Up (L-

N) ≤ 1.5 kV

n) Protection level Up (L-

PEN) ≤ 1.5 kV

o) Residual voltage (L-

N) ≤ 1.3 kV

p) Residual voltage (L-

N) ≤ 1.1 kV (10 kA)

q) Residual voltage (L-

N) ≤ 1 kV (5 kA)

r) Residual voltage (L-

PEN) ≤ 1.3 kV

s) Residual voltage (L-

PEN) ≤ 1.1 kV (10 kA)

t) Residual voltage (L-

PEN) ≤ 1 kV (5 kA)

u) Residual voltage (L-

PEN) ≤ 1 kV (3 kA)

v) Clamping voltage SVR (L-

N) ≤ 0.9 kV

w) Clamping voltage SVR (L-

PEN) ≤ 0.9 kV

x) Response time (L-

N) ≤ 25 ns

y) Response time (L-

N) ≤ 25 ns

z) Short circuit resistance ICC with max. backup fuse (effective) 25 kA
aa) Follow current quenching capacity If (L-N) 25 kA (264 V AC)
bb) Follow current quenching capacity If (L-PE) 25 kA (264 V AC)
cc) Follow current quenching capacity If (L-N) 3 kA (350 V AC)
dd) Follow current quenching capacity If (L-PE) 3 kA (350 V AC)
ee) Power cable input junction terminals - Power distribution blocks suitable

for use as a power feed and junction points for two and three wire circuits
shall be provided. The line side of each circuit shall be capable of handling
two size 1/0 AWG conductors.

ff) All power sockets shall be PVC type as approved by the Engineer.
gg) AC neutral and equipment ground wiring shall be electrically isolated from

the line wiring by an insulation resistance of at least 10 megohms when

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measured at the AC neutral. AC neutral and equipment grounding wiring
shall be colour coded white and green respectively.

hh) Backpanel shall be utilized to distribute and properly interconnect all

cabinet wiring related to the specific complement of equipment called out
on the Contract plans. Each item of equipment including any furnished by
the Owner shall have its cable harness properly terminated at terminal
boards on the backpanel. All functions available at the equipment
connector shall be carried in the connector cable harness to the terminal
blocks from the power distribution panel mounted on the left side panel of
the cabinet.

4. Wiring: All FEC wiring shall be identified by the use of insulated pre-printed sleeving slipped

over the wire before attachment of the lug or making the connection. The wire markers shall
carry this legend in plain words with sufficient details so that a translating sheet will not be
required. Wiring shall also comply with the following items:

All wires shall be cut to the proper length before assembly. No wires shall be
doubled back to take up slack. Harnesses to connectors shall be covered with
woven braid finger cuffs. Cables shall be secured with nylon cable clamps.

ii.

Service loops shall be provided to facilitate removal and replacement of
assemblies, panels and modules.

iii.

All wiring containing line voltage AC shall be routed and bundled separately
and/or shielded from all low voltage, i.e., control circuits. All conductors and live
terminals or parts which could be hazardous to maintenance personnel, shall be
covered with suitable insulating material.

iv.

All conductors used on the cabinet wiring shall be No. 22 AWG or larger with a
minimum of 19 strands. Conductors shall conform to MIL SPEC MIL-W-168780,
Type B or D or equivalent EMEA standards. Insulation shall have a minimum
thickness of 10 mils. All wiring containing line voltage shall be a minimum size of
No. 14 AWG.

5. Terminal strips: Terminal strips located on the backpanel shall be accessible to the extent

that it shall not be necessary to remove the electronic equipment from the Video surveillance
field equipment cabinet to make an inspection or connection.

Terminal blocks shall be two-position, multiple pole barrier type. Shorting bars shall be provided in
each  of  the  positions  provided  along  with  an  integral  marking  strip.  Terminal  blocks  shall  be  so
arranged  that  they  shall  not  upset  the  entrance,  terminating  and  connection  of  incoming  field
conductors. All terminals shall be suitably identified by legends permanently affixed and attached to
the  terminal  blocks.  No  more  than  3  conductors  shall  be  brought  to  any  one  terminal  screw.  No
electrically energized components or connectors shall extend beyond the protection afforded by the
barriers. All terminal blocks shall be located below the shelves. Terminals used for field connections
shall secure conductors by means of a No. 10-32 nickel or cadmium plated brass binder head screw.
Terminals used for inter-wiring connections, but not for field connections, shall secure conductors by
means of a No. 5-32 nickel plated brass binder head screw.

As a minimum, all connections to and from the electronic equipment shall terminate to an inter-wiring
type block. These blocks will act as intermediate connection points for all electronic equipment
input/output.

6. Cabinet internal grounding: FEC internal ground shall consist of one or more ground busbars
permanently affixed to the video surveillance field equipment cabinet and connected to the grounding
electrode. Bare stranded No. 6 AWG copper wire shall be used between busbars and between the
busbar and grounding electrode. Each copper ground busbar shall have a minimum of 20 connector
points, each capable of securing at least one No. 10 AWG conductor. AC neutral and equipment
ground wiring shall return to these busbars.

7. Mechanical Specifications: FEC shall meet the following requirements:

Size and construction: FEC shall be moulded glass reinforced plastic
(GRP) for all video surveillance camera equipped locations and shall be

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free standing and suitable for outdoor installation. FEC shall have suitable
ribbing to provide sturdiness. All metallic parts of the cabinet, including but
not  limited  to,  bolts,  nuts,  washers,  latches  and  glanding  plate  shall  be
corrosion resistant in the conditions prevailing in the Project region. FEC
shall  be  installed  directly  on  the  levelled  concrete  FEC  foundation  as
indicated on the Contract plans. FEC opening side shall be facing away
from  the  adjacent  roadway  or  as  approved  by  the  Engineer.  The  FECs
shall  be  clean-cut  in  design  and  appearance  and  have  the  following
minimum dimensions:

•

38.1 cm depth, 50.8 cm width, 91.4 cm height.

ii.

FECs shall consist of only one compartment and shall have a reinforced
lockable door. The compartment shall be protected against dust and water
in accordance with the IEC Standard IP-43.

iii.

Door shall be pad lockable. Pad locks and master keys shall be supplied.
All locks shall be keyed identically. In addition to padlocks, two separate
latches shall also be provided within the doors, one (within the right panel)
lockable with a key and another (within the left door panel) internally
lockable by sliding a bolt. All hinges and appurtenant materials shall be
stainless steel. Label indicating "PROPERTY OF OWNERS Name" and a
danger sign, both in English and Arabic shall be provided.

iv.

GRP  wall  thickness  shall  not  be  less  than  4.5  mm  and  the  bottom
thickness shall not be less than 6.0 mm. Outside dimensions and internal
connections  shall  be  as  indicated  on  the  Contract  plans  and  specified
herein.  A  short  circuit  test  certificate  shall  be  submitted  with  the  shop
drawings. Doors with gun metal hinges, arranged to give maximum access
for cabling and maintenance, shall be provided.

Ventilation: FECs shall be provided with vent openings to allow convection
cooling of electronic components. Each cabinet shall be provided with a
fan rated at a minimum of 2.8 m

per minute. Fan or cooling system shall

be capable of operating continuously for a minimum of 6000 hours in a 60

C environment, without the need for after-installation maintenance. Each
cabinet shall be provided with a thermostat to control the operation of the
fan or cooling system. Thermostat turn-on point shall be manually
adjustable from 30° C and 55° C, with a differential of not more than 6° C
between automatic turn-on and turn-off.

vi.

Serial  Number:  FECs  shall  be  provided  with  a  unique  five-digit  serial
number. Entire identification code and number shall be either stamped on
a  metal  plate  which  is  riveted  to  the  cabinet,  stamped  directly  on  the
cabinet,  or  engraved  on  a  metalized  Mylar  plate  that  is  epoxied  to  the
cabinet on the upper right hand cabinet side wall.

vii.

Shelves: Adjustable shelves shall be provided in each FEC as required to
support the equipment as specified on the plans. Shelf adjustment shall
be at 50.8 mm intervals in the vertical position.

viii.

Shelves shall be removable and capable of supporting the electronic
equipment. There shall be a minimum of 25.4 mm between the rear and
front edge of the shelf and the back inside wall and door of the FEC,
respectively, to allow room for the equipment cables.

8. Protector and cabinet configuration: All ungrounded conductor wires entering or

leaving the FEC shall be provided with surge protectors. The conductor leads and the
surge protector leads shall be kept as short as possible with all conductor bends
formed to the maximum possible radius. Protector units shall be located as near as
possible (150 mm) to the entry or exit point, and as far as possible from any electrical
equipment. Protector ground lead shall be connected directly to the ground bus.

9. Surge protector utilized for AC power shall not dissipate any energy and shall not

provide any series impedance during standby operation. Unit shall return to its non-

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shunting mode after the passage of any surge and shall not allow the shunting of AC
power.

c. Outdoor Splice Enclosure

Outdoor optical splice enclosure shall be IP-68 and shall be capable of aerial, duct or buried
applications. The splice enclosure shall include splice trays.

The splice enclosure shall be suitable for application in the temperature range of -40

to +70

Splice enclosure shall provide space allowing entry of fibre-optic cable without exceeding the
minimum bend radius of the cable.

The splice enclosure shall be capable of through, branch or mid-span type splice locations.

Splice enclosures shall be designed to permit selective fibre splicing (looping a backbone cable in
and out while only cutting into the desired fibres).

Splice enclosures shall allow splicing of all fibres up to 400 fibres or as specified on the Contract
plans.

The splice enclosure shall be completely air tight, waterproof, re-enterable and shall utilize an
encapsulant to prevent the ingress of moisture.

The splice enclosure shall be designed to protect the buffer tubes and the splice trays, and shall be
re-enterable.

The splice trays shall be capable of accommodating the required number of splices, either fusion or
mechanical, including storage and protection of slack fibre.

d. Equipment Enclosure (Pole Mount)

Equipment enclosure (EE) shall be used to house communication system components as required
on the Contract plans or the Particular Specifications and when approved by the Engineer. EE shall
be pole mounted to be installed on VSS camera poles where fibre communication is required in order
to house the required 12 S.M patch-panel. EE shall be of non-metallic, nonconductive construction.
EE shall be IP55 compliant. Each enclosure shall include permanent identification markings in
sequential numbering as approved by the Engineer. Markings shall be in both English and Arabic.

Each EE shall include provisions for mounting the enclosure as per site design and condition and as
approved by the Engineer.

Each EE shall be sized appropriately to house the necessary components as approved by the
Engineer with at least 25 % additional spare space.

Each EE shall include a hinged front panel, secured by stainless steel screws, and with a
tamperproof lock. All locks shall be keyed alike. Each EE shall be supplied with 240 volt AC, single-
phase, 50 Hz from the local power panel and to be grounded service through industry standard
plugs.

1. Subcontractor shall submit a complete internal design for the EE for review and approval by

the Engineer. Each EE Design shall include the following features, as a minimum:

Back plate for equipment mounting.

ii.

Four louvers with each enclosure for air circulation.

iii.

Sufficient fan model for such applications to be proposed by the contractor and
approved by the Engineer.

iv.

Single-phase isolator to isolate the main power source from the EE1. Subcontractor
shall propose a sufficient isolator model to be reviewed and approved by the
Engineer.

Main circuit breaker, Subcontractor shall propose the breaker current values to be
reviewed and approved by the Engineer.

vi.

Electrical sockets shall be of PVC type with on/off buttons or surge suppresser
equivalent for such installations.

vii.

Din rails

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viii.

PVC trunks for internal cabling management.

ix.

Terminal blocks.

Grounded plug.

9.6.2.12

Solar Power System

Subcontractor shall furnish a solar power system that is self-cleaning, for low power devices such
as  video  surveillance  cameras,  road  weather  information  stations,  and  road  vehicle  detectors  as
shown on the Contract plans, as required in the Particular Specifications and as approved  by the
Engineer.

Solar panels shall be installed on DMS and LCSCS gantries to provide power to low power devices
as directed by the Engineer.

Subcontractor shall furnish and install a solar power system for video surveillance cameras, radar
vehicle detectors, and road weather information stations, as directed by the Engineer.

Solar cells should be constructed of crystalline silicon either as single or poly-crystalline wafers, or
layers of photovoltaic active material placed on a glass superstrate or a metal substrate using
vacuum-deposition manufacturing techniques.

a. Technical Requirements

The solar power system shall include the following items:

1. A power storage system comprising a number of batteries in a cabinet mounted on an

appropriately sized foundation adjacent to the structure on which

the

solar

panel

attached.

2. Power conversion equipment including an inverter to convert the PV modules'

DC output

to AC compatible with the ADDC power supply;

3. Appropriate support and mounting hardware, wiring, and safety disconnects

Subcontractor shall submit for review and approval by the Engineer, the design and drawings of the
proposed system that show the solar panel attachment to the structure, battery cabinet, cabinet
foundations, and associated cabling and civil works. Drawings shall indicate that the solar panel:

•

Will receive maximum exposure to the sun;

•

Will not be shaded by site obstructions such as nearby buildings or vegetation.

9.6.3

Construction Requirements

9.6.3.1

Testing and Conditional Acceptance

During the execution of this Contract, the Subcontractor shall be required to perform, in the presence
of  and  to  the  satisfaction  of  the  Engineer,  pre-installation  and  post-installation  tests  on  all  of  the
system  components.    Purpose  of  these  tests  shall  be  to  demonstrate  to  the  satisfaction  of  the
Engineer  that  all  system  components  function  properly  and  are  capable  of  meeting  all  the
requirements and Specifications of the Contract Documents.  Tests shall be performed according to
a test plan to be prepared and submitted by the Subcontractor at the beginning of the Contract and
to be approved by the Engineer, and under conditions as directed by the Engineer that simulate to
the extent practical the environmental and operating conditions that will be encountered during actual
field operations after installation.  Test plan shall describe test equipment to be used, procedures to
be  followed,  measurements  to  be  taken,  and  pass-fail  criteria  to  be  employed.    Engineer  shall
approve  the  test  plan  with  revisions  and/or  additions  if  he  deems  necessary.    All  tests  shall  be
conducted in accordance with the approved test plan.

Subcontractor shall supply complete equipment manuals which will show test point electronic values
together with component descriptions and wiring diagrams. These manuals shall be complete
printed documents, not a compendium of loose-leaf material.

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No equipment or subsystem shall be considered accepted until the Engineer issues a final
acceptance certificate as described under Sub-article f of Article 9.6.5 .

a. Pre-installation Testing

All pre-installation tests shall be performed in accordance with the approved test plan.

Each piece of equipment, component, element, appurtenance, and/or subsystem of the ITS and
traffic control system shall be individually tested by the Subcontractor in the presence of and to the
satisfaction of the Engineer before installation.

Pre-installation tests shall emphasize proper operation and functioning of each unit of equipment,
component, element, appurtenance and/or subsystem, whether manufactured and/or assembled by
the Subcontractor himself or supplied by a manufacturer other than the Subcontractor.

No pre-installation test shall be considered complete unless the unit being tested meets, in the
judgment of the Engineer, all the material, operating and performance criteria established in the
Contract Documents.

Any unit that fails to pass any pre-installation test shall be so marked by the Engineer and shall be
replaced by the Subcontractor at his own expense until the replacement passes all pre-installation
tests to the satisfaction of the Engineer. Repairing a faulty unit shall not be acceptable. If the reason
for failure of a unit to pass any pre-installation test is identified by the Engineer as an equipment or
system design deficiency, the Subcontractor shall make necessary design modifications to that unit
at his own expense, and shall repeat all pre-installation tests on the modified unit to the satisfaction
of the Engineer. Engineer has the option of rejecting a modified unit and requesting the
Subcontractor to supply at his own expense a unit of different design and/or manufacture.

Once the design of a unit is modified as described above, such design modification shall be
incorporated, at the Subcontractor's own expense, into all like units, whether already installed and
tested, or to be installed in the future.

Unless otherwise directed by the Engineer, pre-installation tests shall be performed at the testing
laboratory in the traffic computer centre building. All costs associated with the pre-installation tests
shall be borne by the Subcontractor as an incidental part of his bid price for the unit being tested. No
separate payment shall be made for pre-installation tests.

No unit shall be installed in the field unless the Engineer issues a pre-installation test certificate
indicating that the unit has passed required tests to his satisfaction.

Engineer has the option of waiving pre-installation testing requirements for a group of like units, after
testing a sufficient number of units, randomly selected by him, from such group of like units.

Satisfactory passage of any unit in pre-installation tests shall not relieve the Subcontractor from any
of his responsibilities of equipment performance under this Contract.

b. Factory Acceptance Testing

Owner and the Engineer have the right to inspect, with use of their representatives, any or all
equipment, components and/or parts of the system during the manufacture, preparation and/or
assembly at the Subcontractor’s vendor’s home plant and/or his regional facilities.

For this purpose, the Subcontractor shall notify the Engineer in writing at least four weeks in advance
of the commencement of such manufacture, preparation and/or assembly. If the Engineer/Owner
uses its right of inspection, no manufactured, prepared and/or assembled equipment, component
and/or part shall be shipped to the job site without the inspection approval of the Engineer/Owner

’s

representative.

Subcontractor shall conduct factory acceptance testing (FAT) for the following major subsystems;
traffic signal system, digital video management system, dynamic message sign and lane control
speed control signs, and integrated traffic signal, ITS and central computer system software. Each
FAT shall have all required systems and software complete and staged at the home plant and include
as necessary simulation of interface subsystem to ensure adequate testing.

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Subcontractor shall bear all expenses related to the factory acceptance testing. All travel, lodging,
living, local transportation and miscellaneous expenses, as requested by the Engineer, for a period
up to two weeks each incurred by the representatives (up to four representatives of the Owner and
up to two representatives of the Engineer) in connection with such inspection at the Subcontractor
vendor’s home plant(s) and/or factory (s) shall be paid for by the Subcontractor. Business class travel
is required for the Owner and Engineer representatives. At least 1 of the

Subcontractor’s staff shall

be in attendance.

In the event that a factory acceptance test fails requiring a postponement and another trip to the
location at a later date, the Subcontractor shall absorb the cost of the revisit, including the costs
incurred due to changed travel plans.

c. Independent Testing Supervision and Verification

At the Owner

’s and Engineer’s discretion the Subcontractor shall provide services of an independent

entity to act as overseer of all testing activities. This entity shall also certify test results and approve
any test procedures and plans. Cost of engaging a separate firm to perform these tasks shall be
included in the bid price as a provisional item.

d. Integration Tests

Subcontractor shall submit integrated system test procedures

– which will be used to test the

compliance with the functional requirements of the systems as a whole. This procedure shall also
include detailed functionality testing of any system for which a separate system functionality test was
not developed.  Full integration test shall demonstrate that all subsystems can be controlled locally
(if applicable) from system head-end and from the central system as approved by the Engineer.  In
addition,  any  and  all  functions  which  require  input  from  multiple  subsystems  shall  be  explicitly
demonstrated.

e. Post-installation Tests

Following the installation of equipment, components, elements, appurtenances and/or subsystems
of the traffic control system and intelligent transportation system, the Subcontractor shall perform
post-installation/site acceptance tests in the presence of and to the satisfaction of the Engineer. All
post-installation tests shall be performed in accordance with the approved test plan.

Post-installation tests shall emphasize the functional operation and performance of a system as well
as the performance of its components.

Post-installation tests shall include, but not limited by, the following, after each system is fully
installed and ready for testing:

1. Complete intersection controls including local controller, detectors, signal poles and mast

arms, vehicular signals, pedestrian signals, cable and wiring, and all components, parts and
appurtenances

2. Complete interconnection (progression) controls along a major artery, including the traffic

signal system central computer system, detectors, communications interface, cable and
wiring, and all components, parts and appurtenances. This also includes additional system
detectors.

3. Automatic Transfer Dual Power Supply Panels, Free Right Turn Signals and Pedestrian

Pushbuttons

4. Additional Intersections placed under the Central Computer Control, including all

components, parts and appurtenances. This also includes performance checking of all
communications cables.

5. Traveller information signs, video surveillance cameras, vehicle detection system, roadway

weather information system, over-height vehicle detection system, and communications
system.

Abu Dhabi, United Arab Emirates. STANDARD CONSTRUCTION SPECIFICATIONS (PART 1 - ROADS, Second Edition 2020) - page 54