Accident risk management strategy at un-signalized intersection

¹ Ph.D. student, Department of Civil and Environmental Engineering, Universitas Gadjah Mada Jl. Grafika No.2 55281 Yogyakarta, Indonesia
² Department of Civil and Environmental Engineering, Universitas Gadjah Mada Jl. Grafika No.2 55281 Yogyakarta, Indonesia

^* Corresponding author: dnoesaku@gmail.com

Abstract

The increasing of traffic sign and/or light violations is a commonly views in many countries. Even it was occurred intentionally which indicates that drivers accept its possible consequences. The constant fatality index of motorcyclist strongly indicates that determinant variables behind their risky behaviour and/or accident involvement should be further investigated and managed systematically. Accordingly, this paper focuses on motorcyclist accident risk management, particularly at un-signalized segment, by combining the aggregated-individual and expert expectancy approaches. Therefore a questionnaire and braking manoeuver test were undertaken at closed circuit course. The result shows that speeding behaviour was caused by trip purpose and triggered by perception about their braking and hazard detection abilities. In addition, only 24 % of 56 % of riders who believed that their braking capability was above average could apply high braking capability so that most riders might involve in crash due to the average critical crossing gap choice at the monitored intersection. This explains that their speed choice should be deal with their braking capability. However, the overlay policy at the monitored intersection indicates that the unbalanced between mobility and safety still to be a latent issue, which virtually could be bridged by using a standardized braking capability.