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Title:

Diagnosing Hazardous Road Surface Conditions Through Probe Vehicle as Mobile Sensing Platform
Cover of Diagnosing Hazardous Road Surface Conditions Through Probe Vehicle as Mobile Sensing Platform

Accession Number:

01371239

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/issn/00978515

Abstract:

Harsh weather has adverse effects on traffic safety as well as on traffic flow. To mitigate the adverse effects, quick recognition of hazardous road surfaces caused by harsh weather is essential. Conventionally, Road Weather Information System (RWIS) has been used to collect road weather data. However, because RWIS can only collect spot data, not section data, the benefit could be limited, considering that road surface conditions vary dynamically even in a short roadway segment. Noting this limitation of the current RWIS, a new cost-effective approach to diagnosing hazardous road surfaces, using a probe vehicle as a mobile sensing platform was motivated in this research. The probe car equipped with a Global Positioning System receiver, a wheel speed (antilock braking system) sensor, and a G-sensor can diagnose slipperiness and roughness of a given road section. To detect slipperiness, a vehicle wheel slip ratio defined as the relative difference between vehicle body and wheel rotation speeds was used. To detect roughness, the vehicle vertical acceleration collected by the G-sensor was used. Experiments were performed under dry and wet road conditions. The slip ratios exhibited under the two conditions were significantly different. Also, it was found that the roughness caused by potholes on a rainy day can be determined on the basis of G-sensor outputs, especially when a probe car travels over a pothole.

Monograph Accession #:

01371195

Report/Paper Numbers:

WM-STW12-127

Language:

English

Authors:

Jang, Jinhwan
Baik, Namchul

Pagination:

pp 54-61

Publication Date:

2012-4

Serial:

Transportation Research Circular

Issue Number: E-C162
Publisher: Transportation Research Board
ISSN: 0097-8515

Conference:

International Conference on Winter Maintenance and Surface Transportation Weather

Location: Coralville Iowa, United States
Date: 2012-4-30 to 2012-5-3
Sponsors: Transportation Research Board; Iowa Department of Transportation; American Association of State Highway and Transportation Officials (AASHTO); Federal Highway Administration

Media Type:

Web

Features:

Figures; Photos; References; Tables

Subject Areas:

Highways; Maintenance and Preservation; Safety and Human Factors; I62: Winter Maintenance; I80: Accident Studies

Files:

TRIS, TRB

Created Date:

May 14 2012 8:45AM