Study Details

Low-Cost Safety Improvements Chapter 27, The Traffic Safety Toolbox: a primer on traffic safety

Study ID: 81

Authors: Polanis

Publication Date:  1999

Abstract: None.

Study Citation: Polanis, S. F., "Low-Cost Safety Improvements." Chapter 27, The Traffic Safety Toolbox: a primer on traffic safety, Washington, D.C., Institute of Transportation Engineers, (1999) pp. 265-272.

Study Type: Journal Article/Book


CMFs Associated With This Study

Category: Delineation

Countermeasure: Mark pavement with supplementary warning messages

CMF CRF(%)QualityCrash TypeCrash SeverityRoadway TypeArea Type
0.7301 StarAngleAllNot specifiedUrban

Category:Intersection traffic control

Countermeasure: Add all-red clearance interval (from 0 to 1 second)

CMF CRF(%)QualityCrash TypeCrash SeverityRoadway TypeArea Type
101 StarAngleAllNot specifiedUrban

Countermeasure: Add centerline and STOP bar, replace 24-inch with 30-inch stop signs

CMF CRF(%)QualityCrash TypeCrash SeverityRoadway TypeArea Type
0.33671 StarAngleAllNot specifiedUrban

Countermeasure: Convert minor-road stop control to all-way stop control

CMF CRF(%)QualityCrash TypeCrash SeverityRoadway TypeArea Type
0.2801 StarAngleAllNot specifiedUrban

Countermeasure: Install double stop signs

CMF CRF(%)QualityCrash TypeCrash SeverityRoadway TypeArea Type
0.45551 StarAngleAllNot specifiedUrban

Countermeasure: Install larger signal lenses (12 inch)

CMF CRF(%)QualityCrash TypeCrash SeverityRoadway TypeArea Type
0.54462 StarsAngleAllNot specifiedUrban

Countermeasure: Replace Night-Time Flash with Steady Operation

CMF CRF(%)QualityCrash TypeCrash SeverityRoadway TypeArea Type
0.25751 StarAngleAllNot specifiedUrban

Category:Signs

Countermeasure: Install advance warning signs (positive guidance)

CMF CRF(%)QualityCrash TypeCrash SeverityRoadway TypeArea Type
0.65351 StarAngleAllNot specifiedUrban