Convert Low-Volume Intersections from TWSC to AWSC

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DEFINITION AND DESCRIPTION

All-way stop control (AWSC) is implemented by placing stop signs on each leg of an intersection. It is a quick, cost-effective, method for alleviating crash problems at intersections with high-severity impact crashes. North Carolina DOT converted 50 intersections from two-way stop control (TWSC) to AWSC and saw a 77% reduction in fatal and injury crashes at the treated intersections. 

Implementation Categories

CONSIDERATIONS

• In general, when the AADT of each road is £ 4,000, the intersection with AWSC is expected to operate at an acceptable level of service (NC DOT).
• Conduct public outreach to let users know changes in traffic control are forthcoming.

APPLICATION

• Evaluate current AADT, intersection control, sight distance, and crash history to identify locations where AWSC would be appropriate.  Some considerations for establishing an AWSC are in Section 2B.12 of the MUTCD, 11^th Edition.

example

https://deldot.gov/Programs/DSHSP/pdfs/Emphasis-Areas/intersections/AWSC%20Research%20Memo%20with%20Appendices.pdf

Complimentary Countermeasures

• Broader Application of KYTC’s Intersection Control Evaluation (ICE) Process