The study was conducted to quantify the extent of the problem of accidents involving vehicles on shoulders of limited access highways. Accident data for a three-year period (1985-1987) were collected along with a survey of vehicles stopped on the shoulder on interstates and parkways. While the percentage of all accidents on interstates and parkways involving a vehicle on the shoulder is small (1.8%), the percentage of fatal accidents involving a vehicle on the shoulder is significant (11.1%). Two types of observational surveys were taken. One survey represented what a driver would observe while driving from one point to another on an interstate or parkway. It indicated that a driver would pass (in his direction of travel) an average of about one vehicle on the shoulder every eight miles on an interest and every 17 miles on a parkway. The second survey was conducted in a circular route such that almost all stops would be observed. The highest percentage of stops were over one hour in length.
Accidents Involving Vehicles Parked on Shoulders of Limited Access Highways
1989
21 pages
Report
No indication
English
Transportation Safety , Road Transportation , Motor vehicle accidents , Accident investigations , Traffic safety , Safety engineering , Accident prevention , Collision research , Road shoulders , Controlled access highways , Urban highways , Accident research , Accident location , Roadside hazards , Highway accident potential
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