00795315

Component

Winter storm events can have a significant impact on mobility and safety. During the past year, these impacts have been investigated by the Center for Transportation Research and Education for the Iowa Department of Transportation. The project documented in this paper had two phases. First, data related to traffic flow, crashes, and weather/roadway conditions were collected from existing information management systems in Iowa. These data were then evaluated and analyzed. Second, a mobile video data collection system was used to collect data during seven winter storm events. The data collected and summarized into 15-minute increments included traffic volumes, vehicle speeds, vehicle gaps and headways, visibility (greater or less than 1/4-mile) and roadway snowcover conditions. This paper summarizes the results from both phases of this project.

Session B

English

14p

2000

Ninth AASHTO/TRB Maintenance Management Conference

Figures (2) ; References (13) ; Tables (5)

Data collection; Headways; Highway safety; Mobility; Road weather information systems; Snow cover; Snowstorms; Traffic crashes; Traffic flow; Traffic speed; Traffic volume; Video cameras; Visibility distance; Weather conditions; Winter

Iowa

Highways; Maintenance and Preservation; I62: Winter Maintenance

TRIS, TRB

Jul 18 2000 12:00AM

• CENTRALLY ORGANIZED TEMPORARY TRAFFIC CONTROL TEAMS - PILOTING AN INDEPENDENT PROFIT CENTER
• PERFORMANCE MEASUREMENT FOR SNOW AND ICE CONTROL ACTIVITIES: A PILOT PROJECT IN WASHINGTON STATE
• SYNERGY WITH SAP AND GIS
• TEAM WORK IN WINTER MAINTENANCE - FIRST HAND EXPERIENCES
• WINTER MAINTENANCE STANDARDS ON CYCLE WAYS