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Title:

Quantifying the Mobility Effects of Winter Snow Events and the Benefits of Winter Road Maintenance
Cover of Quantifying the Mobility Effects of Winter Snow Events and the Benefits of Winter Road Maintenance

Accession Number:

01371250

Record Type:

Component

Availability:

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

Abstract:

A number of past studies have attempted to quantify the impact of winter snow events on highway mobility in terms of traffic volume, speed, and capacity. While consistent in their general findings, these studies have shown considerably different results in terms of effect size and contributing factors. More importantly, most of these efforts have not been able to capture the effects of winter maintenance operations on mobility or isolate them from those of snow event characteristics, rendering their results and the proposed methods of limited use for estimating the benefits of maintenance activities. This research attempts to address this issue through a statistical analysis of a data set that is unique in terms of spatial and temporal coverage and data completeness. The data set includes event-based observations of road weather and surface conditions, maintenance operations, traffic volume and speed, as well as several other measures from 21 highway routes over a period of three years. A matched-pair technique was employed to determine the changes in traffic volumes and speeds under matched conditions with and without snow events. A regression analysis was subsequently performed to relate the changes in traffic volume and speed over an event to various contributing factors such as highway type, snow event characteristics, and road surface conditions. A case study was conducted to illustrate the application of the developed models for quantifying the mobility impact of road surface condition and the mobility benefit of winter maintenance operations.

Monograph Accession #:

01371195

Report/Paper Numbers:

WM-STW12-165

Language:

English

Authors:

Donaher, Garrett
Fu, Liping
Usman, Taimur
Perchanok, Max S

Pagination:

pp 173-186

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; Maps; References; Tables

Subject Areas:

Highways; Maintenance and Preservation; I62: Winter Maintenance

Files:

TRIS, TRB

Created Date:

May 14 2012 4:00PM