Modeling 85th percentile speed along two-lane two-way rural highway under photopic and mesopic visions / Ab Mughni Ab Rahim

Several aspects of requirement for the driving safety must include human visibility such as luminance that has to be pinpoint acutely. Indefinitely, the study outcomes are to predict model of drivers’ speed behaviour using Automobile Driving Simulator (ADS) with regard to human visibility aspects and to evaluate differences in intensity of lighting for photopic and mesopic visions. The objectives of the study are to assess and to compare the mean speed of the drivers (age group and gender) with photopic and mesopic visions at two lanes rural road curvatures, to investigate the significant relationship between the drivers’ mean speed based on their age group and gender under photopic and mesopic visions at two lanes rural road curvatures, to develop several models of operating speed at the rural road curvatures with regard to the geometrical elements, age group, gender, photopic and mesopic visions.