To identify hazardous sections of newly built mountainous highways, decision-makers require assistance to determine the sections that may pose risks to road users, thereby enhancing the level of road safety management and capital utilisation efficiency. In this research, traffic accident economic losses were used as evaluation indices to characterise 30 horizontally curved sections of roadways. These

A Markov switching logit model with spatial dependencies for real-time crash risk assessment is proposed, with the purpose of identifying hazardous traffic-flow conditions with high crash potential. The Markov switching process assumes that freeway segments can switch between two unobserved safety states over time, and that parameter estimates may vary between these two states. The spatial simultaneous

Foggy weather can reduce visibility for drivers and one of the main consequences of this condition can be the change in behaviour regarding choice of speed, which will vary from driver to driver owing to their varying personal and socio-economic characteristics and driving experience. The aim of this study is to assess the effects of adverse weather conditions on speed-choice behaviour of drivers on

The focus of this study was to explore the characteristics of traffic flow as well the behaviour of drivers on the roads and their relationship with accidents in the Jazan region. Data collected over a span of 4 years have been used to achieve the objectives of the study. The most important results were that 85% of the accidents in the sample were attributable to drivers under the age of 40 and the

Natural cracking in unjointed roller-compacted concrete pavement (RCCP) may exhibit poor load transfer efficiency (LTE) across the cracks, leading to the occurrence of faulting, further cracking and excessive deflection, and a dramatic decrease in pavement service life. The aim of this study is to enable pavement designers to make the right decision as to whether or not to saw cut joints for RCCP.