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Title:

Estimating Fatality and Injury Savings Due to Deployment of Advanced Wrong-Way Driving Countermeasures on a Toll Road Network

Accession Number:

01764210

Record Type:

Component

Abstract:

Limited access facility wrong-way driving (WWD) crashes are typically more severe than other crashes.  Deploying advanced WWD countermeasures, such as rectangular flashing beacon (RFB) and light-emitting diode (LED) technologies, at exit ramps can reduce WWD crashes, injuries, and fatalities.  No previous research has developed a methodology to quantify the potential fatality and injury savings due to future countermeasure deployments.  This paper developed such a methodology and applied it to the Florida’s Turnpike Enterprise (FTE) toll road network.  From 2011–2016, there were 53 FTE WWD crashes, resulting in 16 fatalities and annual injury costs of $37 million.  87% of these crashes occurred during nighttime.  RFB and LED life-cycle injury savings and costs were determined for all 216 FTE exits.  The total savings were $424 million for RFBs (benefit-cost ratio of 23.20) and $144 million for LEDs (benefit-cost ratio of 13.13).  Deploying countermeasures at the 103 exits with the highest benefit-cost ratios would provide 70% of the total possible savings by equipping 40% of the ramps.  For the same capital investment, RFBs provide more savings than LEDs.  Spending $1 million to deploy RFBs will provide similar savings as spending $3.4 million to deploy LEDs.  Evaluating the existing FTE RFB and LED ramps shows that RFBs are more effective at nighttime and can provide three times the savings of LEDs.  The results of this paper show the improved performance of RFBs over LEDs and provide an example that other agencies could follow to identify savings and cost-effectively deploy advanced WWD countermeasures.

Supplemental Notes:

This paper was sponsored by TRB committee ACP20 Standing Committee on Freeway Operations.

Report/Paper Numbers:

TRBAM-21-00645

Language:

English

Corporate Authors:

Transportation Research Board

Authors:

Sandt, Adrian
Al-Deek, Haitham

Pagination:

25p

Publication Date:

2021

Conference:

Transportation Research Board 100th Annual Meeting

Location: Washington DC, United States
Date: 2021-1-5 to 2021-1-29
Sponsors: Transportation Research Board; Transportation Research Board

Media Type:

Web

Features:

Figures; References; Tables

Geographic Terms:

Florida

Subject Areas:

Highways; Safety and Human Factors

Source Data:

Transportation Research Board Annual Meeting 2021 Paper #TRBAM-21-00645

Files:

TRIS, TRB, ATRI

Created Date:

Dec 23 2020 11:22AM