ABSTRACT

Braking distance is one of the basic standards for road design and maintenance practices. Adequate tire-pavement skid resistance plays a significant role in reducing braking distance and consequently enhancing road safety. Several studies have shown the effect that some parameters, such as water film thickness, tire inflation pressure, and wheel load, have on braking distance. Less discussed is the effect of temperature which is of especial importance under hot weather conditions. The aim of this paper is to investigate the temperature effect on braking distance by means of the Finite Element (FE) method. A tire-pavement interaction FE model is proposed with the capability of considering the pavement textures and variations of surrounding temperature. Furthermore, the proposed model is validated by the field measurements carried out in the State of Qatar.