Cost

To improve air quality in downtown Syracuse, the New York State DOT deployed a computerized traffic signal system and optimizd the signal timing of 145 intersections at a total project costs of $8.3 million.


September 2003
Syracuse,New York,United States


Summary Information

In 1990, New York State and the Environmental Protection Agency identified Onondaga County as not meeting the National Ambient Air Quality Standards (NAAQS) for carbon monoxide (CO). To improve air quality in downtown Syracuse and Onondaga County, the New York State Department of Transportation (NYSDOT) proposed installing a computerized traffic signal system and optimizing the signal timing of 145 intersections. Prior to the implementation of the new traffic signal system, signalization in the City of Syracuse consists of City owned and NYSDOT owned traffic signals. Each agency was allowed to select the type of equipment deemed appropriate for their system. The equipment was obsolete and operationally inefficient. Given the variety of equipment and multiple agencies operating the equipment, communication among many of the signals was non-existent.

The cost of the computerized signal system was $8,316,307. Detailed costs for the signal interconnect project are provided in the table below. These construction-related costs include ITS and non-ITS-related equipment and installation. In addition to the specific project costs, other costs associated with the project are available. The original agreement for preliminary engineering, which included costs of consultant design and project planning, was funded in 1992. The preliminary engineering cost was $1,591,200. Construction inspection cost, totaling $677,234, was paid out from 1996 to 2001. Construction activity was completed in 1998, but until 2001 a small amount was charged to the project for contract administration and dispute resolution. Approximately $7.2 million of the project cost are in 1996 dollars. Approximately $1.1 million was added to the contract at various times between 1996 and 2001 when all disputes were finally settled.

ITEM
COST
DESCRIPTION
Steel Conduit
$247,000
2” to 4” diameter.
Conduit Installation
$905,500
Excavation and surface restoration.
Clean Existing Conduit
$3,000
Pullboxes
$295,500
Includes excavation, backfill, surface restoration, cast iron covers, wire hangers, and grounding system.
Traffic Signal Poles
$833,500
Span wire and Mast arm poles; includes foundations.
Span Wire Assemblies
$74,500
Signal Heads
$310,000
Includes bracket assemblies, signal sections, and disconnect hangers.
Ground Mounted Signs
$81,500
Includes new street signs, parking signs, misc. regulatory signs, and removal of existing signs.
Overhead Signs
$49,000
Includes metal and lighted signs.
Copper Signal Cable
$137,500
2 to 19 conductors.
Pedestrian Signals
$319,000
Includes both pedestrian signals mounted on traffic signal poles and on dedicated poles. Cost of pedestrian poles and foundations included.
Emergency Pre-Emption System
$205,500
Includes detectors, phase selector cards in controllers, cable, and field testing equipment.
Inductive Loop Surveillance
$384,000
Corridor and intersection loops were not recorded separately in project records. Also, as loops vary widely in size and placement, a “per loop” unit price was not given.
Controllers
Controller Assemblies
Power Connections

$1,131,000
$89,500
Includes microprocessor, conflict monitor, backpanel, mounting hardware for pole mounts, bases and foundations for base mounts. Includes disconnect and service wire.
Fiber Optic Interconnect
$776,000
Includes multi mode and single mode cable, modems, installation of cable in conduit, and splicing.
Multiplexers
$51,000
CCTV Cameras
$43,500
Graphic Displays
$66,000
Includes CCTV camera remote controls.
Start-up Equipment
$102,500
Includes testing and diagnostic equipment, spare fiber optic cable, controller components.
Computer Hardware and Software
$215,000
Cost of commercial-off-the-shelf (COTS) traffic control software and upgrades.
Training
$32,000
Utility Work
$494,000
Includes energizing new installations ($125,000), installing fiber optic cable in utility-owned ductwork, and installing guy wires on utility poles ($369,000).
Maintenance and Protection of Traffic
$425,000
Includes basic M&PT, construction signs, and flagging.
Maintaining Existing Traffic Signal Equipment
$135,000
Removal of Outdated Traffic Signal Equipment
$170,500
Modification of Existing Traffic Signal Equipment
$184,000
Includes repair, relocation, and painting of existing equipment.
Engineer's Office
$34,500
Mobilization
$240,000
Storm Damage Repair
$10,000
Disputes
$271,000
Dispute resolution was paid to compensate the contractor for additional costs related to delays and design errors.
TOTAL
$8,316,000



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Source

Syracuse Signal Interconnect Project: Before and After Analysis Final Report

Author: DMJM Harris

Correspondence with NYSDOT, 2004

Published By: New York State DOT

Prepared by DMJM Harris for the New York State DOT

Source Date: September 2003


System Cost

Project Cost: $8,316,000.

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Keywords

coordinated signals, signal coordination, centralized signal control, signal synchronization, traffic signals, advanced signal control, signal timing optimization, coordinated signal control, advanced signal controller, traffic signal retiming, retiming

Cost ID: 2004-00076