Study Details

Study Title: Guidelines for the Use of No U-Turn and No-Left Turn Signs

Authors: Brich and Cottrell

Publication Date: 1994

Abstract:

Study Citation: Brich, S. C. and Cottrell Jr, B. H., "Guidelines for the Use of No U-Turn and No-Left Turn Signs." VTRC 95-R5, Richmond, Virginia Department of Transportation, (1994)

CMFs Associated With This Study

Category: Intersection traffic control

Countermeasure: Prohibit left-turns and U-turns with "No Left Turn" and "No U-Turn" signs

CMF	CRF(%)	Quality	Crash Type	Crash Severity	Roadway Type	Area Type
0.23^[I]	77		Left turn,Other	All	Minor Arterial	Urban and Suburban

0.28^[I]	72		All	All	Minor Arterial	Urban and Suburban

Countermeasure: Prohibit left-turns with "No Left Turn" sign

CMF	CRF(%)	Quality	Crash Type	Crash Severity	Roadway Type	Area Type
0.36^[I]	64		Left turn	All	Minor Arterial	Urban and Suburban

0.32^[B]	68		All	All	Minor Arterial	Urban and Suburban

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CRASH MODIFICATION FACTORS CLEARINGHOUSE

Study Details

CMFs Associated With This Study

Category: Intersection traffic control