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Title:

Outcome Assessment Using Connected Vehicle Data to Justify Signal Investments to Decision Makers
Cover of Outcome Assessment Using Connected Vehicle Data to Justify Signal Investments to Decision Makers

Accession Number:

01622719

Record Type:

Component

Abstract:

Elected officials and decision makers are increasingly seeking outcome assessment of capital projects such as corridor signal modernization and adaptive control projects. This paper describes the use of connected vehicle data to perform corridor travel time outcome assessment along five corridors in the greater Philadelphia, Pennsylvania area. These corridors are comprised of a total of 2,184 signals and are considered five of the most critical corridors in this region, experiencing a high volume of traffic, with AADT greater than 30,000 vehicles. These corridors were evaluated for six weeks before and after the adaptive installation through the use of private-sector segment speed data. Medians and interquartile ranges of travel times were used to assess the impact on arterial progression. Various graphs, charts, and figures produced through web tools and traditional metrics provide a user-interactive component to the dashboards. In addition, user cost reductions and CO2 emission impacts were also determined. Four out of the five corridors had substantial reductions of arterial travel times that amounted to approximately $36.6 million in annualized user benefits. The paper concludes by recommending these techniques be integrated into modern traffic signal central systems to prioritize timing initiatives to perform outcome assessment. Such tools would complement high resolution traffic signal data performance measures that identify minor side street split failures to provide agencies with a complete set of tools for managing their signal system infrastructure.

Supplemental Notes:

This paper was sponsored by TRB committee ABJ20 Standing Committee on Statewide Transportation Data and Information Systems.

Monograph Accession #:

01618707

Report/Paper Numbers:

17-00314

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Krohn, Drake
Rymarcsuk, Lou
Mathew, Jijo
Day, Chris
Li, Howell
Patel, Ashwin
Farley, Daniel
Bullock, Darcy

Pagination:

21p

Publication Date:

2017

Conference:

Transportation Research Board 96th Annual Meeting

Location: Washington DC, United States
Date: 2017-1-8 to 2017-1-12
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Geographic Terms:

Philadelphia Metropolitan Area

Subject Areas:

Highways; Operations and Traffic Management

Source Data:

Transportation Research Board Annual Meeting 2017 Paper #17-00314

Files:

PRP, TRIS, TRB, ATRI

Created Date:

Dec 8 2016 10:00AM