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Title:

Smart Phone Based Forward Collision Warning Messages in Work Zones to Enhance Safety and Reduce Emissions

Accession Number:

01551074

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Collisions in work zones have always been a contributing factor in compromising safety on urban roadways. National Highway Traffic Safety Administration (NHTSA) and State Transportation Authorities have implemented many safety countermeasures to reduce forward collision in work zones. However, due to the complexity of traffic in a work zone, traditional countermeasures often fail to prevent crashes. As such, smart warning systems can be applied to notify motorists about upcoming conditions in work zones. In this study, a smartphone-based warning system was designed to investigate effectiveness in reducing forward collisions thru advanced warning and notifications about a work zone. Four different warning messages were generated (visual, sound, male voice and female voice) to alert drivers. Driving simulator tests with eighteen participants with ninety rounds thru work zones were conducted to investigate the impact of smart-phone based warnings on performance measures such as: headway distance, headway time, speed deceleration, and emissions. Statistical results show that, with the help of voice (either female or male) warnings on forward collisions, acceleration and speed was reduced, and headway time and distance increased. Results also showed that sound and voice warnings also reduced total vehicle emissions. Moreover, participants found the notification system user friendly and felt it helped to avoid rear-end crashes in work zones. Overall, this low- cost and effective smartphone application should be tested in real road conditions with similar safety measures as employed in this paper.

Supplemental Notes:

This paper was sponsored by TRB committee AHB15 Intelligent Transportation Systems. Alternate title: Smart Phone Based Forward Collision Warning Message in Work Zones to Enhance Safety and Reduce Emissions.

Monograph Accession #:

01550057

Report/Paper Numbers:

15-0648

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Rahman, Ruksana
Qiao, Fengxiang
Li, Qing
Yu, Lei
Kuo, Po-Hsien

Pagination:

20p

Publication Date:

2015

Conference:

Transportation Research Board 94th Annual Meeting

Location: Washington DC, United States
Date: 2015-1-11 to 2015-1-15
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Subject Areas:

Data and Information Technology; Environment; Highways; Operations and Traffic Management; Safety and Human Factors; I15: Environment; I73: Traffic Control

Source Data:

Transportation Research Board Annual Meeting 2015 Paper #15-0648

Files:

TRIS, TRB, ATRI

Created Date:

Dec 30 2014 12:19PM