- Published by: Federal Highway Administration (FHWA)
This is a one-page guide to strategies to improve safety at unsignalized intersections, including:
High frequency of right-angle crashes attributed to:
- nearby driveways
- traffic from minor street
- skewed intersection
- poor sight distance
- drivers misjudging gaps
- not enough gaps for drivers
- driver unaware of intersection
- nighttime conditions
- failure to yield at stop or yield sign
- possible signal location
- heavy but balanced traffic flow
- speed differentials of vehicles
High frequency of rear-end crashes attributed to:
- left turning vehicles hit from behind
- left opposing vehicles hit from behind
- trucks and RVs entering divided highway
- speed differential of entering vehicles
- right turning vehicles hit from behind
- appoaching vehicles hit from behind
- no left turn lane and high opposing traffic
- driver unaware of intersection
- nighttime conditions
- speed differentials of vehicles
High frequency of left-turn crashes attributed to:
- left turn vehicles hit by opposing traffic
- trucks and/or RVs entering divided highway
- no left turn lane and high opposing traffic
- nighttime conditions
- heavy but balanced traffic flow
- Poor sight distance
High frequency of sideswipe crashes attributed to:
- speed differential of entering vehicles
- vehicles within intersection
- vehicles approaching intersection
High frequency of run off road crashes:
- approaching intersection
High frequency of pedestrian/bicycle crashes:
Address overall safety issues:
- Violation of traffic laws