Speed reduction impact of dynamic speed feedback signs on high crash curves

Lane departure crashes are a significant safety concern. The majority of lane departure crashes occur in rural areas, mostly on 2-lane roadways. A disproportionate number of these crashes occur on horizontal curves. Curve related crashes involve a number of roadway and driver causative factors. A primary driver factor is speeding and a large number of run-off-road fatal crashes on curves are speed related. The amount of speed change needed from the tangent speed to the speed required to traverse a curve has an impact on the frequency and severity of crashes on curves.

[1]  J. Bared,et al.  Accident Models for Two-Lane Rural Segments and Intersections , 1998 .

[2]  Antoine G. Hobeika,et al.  TRUCK ACCIDENT MODELS FOR INTERSTATES AND TWO-LANE RURAL ROADS , 1993 .

[3]  A H Wheeler,et al.  VEHICLE-ACTIVATED SIGNS - A LARGE SCALE EVALUATION , 2003 .

[4]  R. B. Albin,et al.  Evaluating Median Crossover Likelihoods with Clustered Accident Counts: An Empirical Inquiry Using the Random Effects Negative Binomial Model , 1998 .

[5]  Timothy R Neuman,et al.  SAFETY AND OPERATIONAL CONSIDERATIONS FOR DESIGN OF RURAL HIGHWAY CURVES. FINAL REPORT , 1983 .

[6]  C Zegeer,et al.  SAFETY EFFECTS OF GEOMETRIC IMPROVEMENTS ON HORIZONTAL CURVES , 1991 .

[7]  Shaw-Pin Miaou,et al.  STATISTICAL EVALUATION OF THE EFFECTS OF HIGHWAY GEOMETRIC DESIGN ON TRUCK ACCIDENT INVOLVEMENTS , 1993 .

[8]  J de Pont,et al.  Curve speed management , 2007 .

[9]  Howard Preston,et al.  POTENTIAL SAFETY EFFECTS OF DYNAMIC SIGNING AT RURAL HORIZONTAL CURVES , 1999 .

[10]  Charles M Farmer,et al.  Rollover risk of cars and light trucks after accounting for driver and environmental factors. , 2002, Accident Analysis and Prevention.

[11]  Ruediger Lamm,et al.  POSSIBLE DESIGN PROCEDURE TO PROMOTE DESIGN CONSISTENCY IN HIGHWAY GEOMETRIC DESIGN ON TWO-LANE RURAL ROADS , 1988 .

[12]  Samuel G Charlton,et al.  The role of attention in horizontal curves: a comparison of advance warning, delineation, and road marking treatments. , 2007, Accident; analysis and prevention.

[13]  R A Krammes,et al.  Speed Reduction as a Surrogate for Accident Experience at Horizontal Curves on Rural Two-Lane Highways , 2000 .