مرکز منطقه ای اطلاع رساني علوم و فناوري - IMPACT OF RAINFALL CONDITIONS ON DRIVER SPEED: A CASE STUDY IN ANTALYA

Abstract :

Weather and climate factors are environmental factors known to have an impact on section safety performance in the road transportation sector and they also affect the demand in transportation services. In this study, data acquired from 11 sections inside a university campus with speed limits of 20 km/h, 30 km/hand 50 km/h were used for examining the impact of rain conditions on the average speeds of drivers. Traffic data were analyzed by taking into consideration the average speed data recorded by average speed cameras for a period of two months in average with an evaluation based on dry weather and rainy weather conditions. Only weekday work hour data were used in the study. There were statistically significant decreases in average speed results in rain condition in comparison with dry condition at rates varying between 4-8%. Average speeds increased in 2 sections and no statistically significant changes occurred in the others. The article puts forth that drivers do not consider the speed limits for these sections as reasonable. The article also provides suggestions for directing driver speed behaviors in dry and rainy weather conditions