Unit Cost Entry

Unit Cost Element - Digital Detection Sensor

Unit Cost Component - Digital Detectors


San Antonio, Texas, United States


Description

Digital detectors deployed as part of San Antonio's Freeway and Incident Management Expansion

Cost Type

Actual

Data Date

2000

Reported Units

692

Units

Each (EA)

Year (Dollars)

1998

Capital Cost per Unit ($)

$387.00

O & M Cost per Unit ($)



Lifetime

years


Notes

The project covered a 28.9-mile stretch of I-10, I-410, and US 281 in the northern region of San Antonio.

Source

Metropolitan Model Deployment Initiative: San Antonio Evaluation Report - Final Draft

Author: Carter, M., et al.

Published By: Federal Highway Administration, U.S. DOT

Prepared by SAIC for the U.S. DOT

EDL Number: 12883

Other Reference Number: Report No. FHWA-OP-00-017

URL: https://rosap.ntl.bts.gov
/view/dot/2893

Related System Cost ID: 2003-00028


Unit Cost Details

Capital Cost per Unit: $387.00

O&M Cost per Unit:

Year (Dollars): 1998

Lifetime: years


Costs From This Source

An advanced highway-rail intersection warning system was deployed for just over $350,000 as part of the San Antonio Metropolitan Model Deployment Initiative.

In-vehicle navigation units and real-time traveler information software development were the main cost drivers for the San Antonio TransGuide MMDI project to improve operations at several public agencies.

Over half of the $3.25 million cost for the San Antonio Lifelink advanced telemedicine project was attributed to reseach and development.

The integrated freeway/incident management system covering 28.9 miles in San Antonio was deployed for approximately $26.6 million.

Benefits From This Source

Evaluation indicated that integrating DMS and incident management systems could reduce crashes by 2.8 percent, and that integrating DMS and arterial traffic control systems could decrease crashes by 2 percent, in San Antonio, Texas.

Evaluation of freeway DMS integrated with incident management in San Antonio, Texas, found fuel consumption reduced by 1.2 percent; integrating the DMS with arterial traffic control systems could save 1.4 percent.

In San Antonio, Texas, 60 percent of drivers of transit vehicles equipped with in-vehicle navigation devices reported that they saved time and felt safer.

In San Antonio, Texas, focus group participants felt that DMS were a reliable source of traffic information.

In San Antonio, Texas, usage of a traveler information Web site increased at a rate of 19 percent per year and spiked during severe weather events.

Modeling performed as part of an evaluation of nine ITS implementation projects in San Antonio, Texas indicated that drivers of vehicles with in-vehicle navigation devices could experience an 8.1 percent reduction in delay.

Modeling performed as part of an evaluation of nine ITS implementation projects in San Antonio, Texas indicated that integrating DMS, incident management, and arterial traffic control systems could reduce delay by 5.9 percent.

Modeling performed as part of an evaluation of nine ITS implementation projects in San Antonio, Texas indicated that users of an improved traveler information web site would receive annual benefits of a 5.4 percent reduction in delay.


Related Unit Cost Subsystems

Roadside Detection (RS-D)

Keywords

road monitoring, sensors, incident detection, vehicle detector, traffic detection, traffic monitoring, congestion monitoring

ID: 2012-02433