Cost Effective Safety Improvements for Two-Lane Rural State Roads in Washington State.

摘要

Two-lane rural highways in Washington State represent approximately 4,900 miles. From 1999 to 2005 , 42.8% of the fatal collisions reported on state highways occurred on two-lane rural highways. WSDOT determined that the traditional high collision frequency location approach do not necessarily reflect the safety needs of two-lane rural highways.