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Title:

Implementation of a Connected Data Smart Work Zone Management System to Provide Queue Alerts to Stakeholders

Accession Number:

01627718

Record Type:

Component

Abstract:

It is not uncommon for significant queueing to occur in advance of a work zone, and back-of-queue crashes of significant concern to all agencies. Over 30,000 crashes on 2,280 directional miles of Indiana interstates in calendar years 2014 and 2015 were reviewed to determine association with interstate queueing. Crashes on interstates were found to be 20-24 times more likely to occur when a queue is present. For almost 75% of back-of-queue crashes, queues existed for 15 minutes or more, suggesting that improved alerting to drivers has significant potential to reduce back-of-queue crashes. This increased crash rate is cited as a strong motivator for agencies to invest in queue warning systems. This paper reports on a connected vehicle data-based system for generating texts/emails to alert the Indiana Department of Transportation to interstate work zone queueing. Six work zones were identified for this study, with 10-mile upstream approach boundaries. When average speeds drop below 45 MPH, queue monitoring algorithms are triggered. When this queue grows to be at least 1 mile long or has a speed drop of at least 15 MPH at the back of the queue, a text/email alert is sent to individuals who have opted to receive alerts from that work zone. Still camera images, work schedules, and crash reports were used to ground-truth the alert system. The paper concludes by recommending the use of connected vehicle data for queue monitoring due to the scalable, cost effective nature of the technology and the ability to rapidly deploy monitored areas.

Supplemental Notes:

This paper was sponsored by TRB committee AHB55 Standing Committee on Work Zone Traffic Control.

Monograph Accession #:

01618707

Report/Paper Numbers:

17-00104

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Mekker, Michelle M
Li, Howell
McNamara, Margaret L
McGregor, John D
Kachler, Mischa
Bullock, Darcy M

Pagination:

19p

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:

Indiana

Subject Areas:

Data and Information Technology; Highways; Operations and Traffic Management

Source Data:

Transportation Research Board Annual Meeting 2017 Paper #17-00104

Files:

TRIS, TRB, ATRI

Created Date:

Dec 8 2016 9:56AM