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Title:

Creating a New Method to Identify the Worst Bottlenecks in Texas
Cover of Creating a New Method to Identify the Worst Bottlenecks in Texas

Accession Number:

01475769

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Since 2009 the Texas Department of Transportation (TxDOT) has posted a list of the most congested roadway sections in the state on its website (1). This list is produced annually by TxDOT and the Texas Transportation Institute (TTI) using a jointly-developed methodology. The two agencies have developed an approach that combines traffic speed data from annual archives of private sector data companies, basic roadway geometry, and traffic counts published in the TxDOT statewide roadway inventory file (RHiNo) (2) to calculate congestion-related performance measures. A set of volume distribution curves, combined with daily traffic counts, is used to estimate 15-minute volumes for each average day of the week. These estimated 15-minute volumes are combined with 15-minute speed data to calculate delay. Performance measures such as annual delay per mile, congestion cost, and the Travel Time Index are produced from this analysis and are used to rank the congested segments across Texas. This paper describes the process used to produce these statistics.

Supplemental Notes:

This paper was sponsored by TRB committee ABC30 Performance Measurement.

Monograph Accession #:

01470560

Report/Paper Numbers:

13-0693

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Schrank, David Lynn
Lomax, Timothy J
Crum, Shannon

Pagination:

10p

Publication Date:

2013

Conference:

Transportation Research Board 92nd Annual Meeting

Location: Washington DC, United States
Date: 2013-1-13 to 2013-1-17
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Uncontrolled Terms:

Road geometry

Geographic Terms:

Texas

Subject Areas:

Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning; I73: Traffic Control

Source Data:

Transportation Research Board Annual Meeting 2013 Paper #13-0693

Files:

PRP, TRIS, TRB, ATRI

Created Date:

Feb 5 2013 12:15PM