vehicle crashes are amongst the major causes of mortality and results in losses of lives and properties. alarge number of the vehicle crashes occur on rural roads. accidents become more noteworthy in two-laneroads due to going and coming traffic. therefore, prediction of crashes and their causes are considerablyimportant to reduce the number and severity of the accidents. the safety index is a ...

The development of urban strategies for the reduction environmental impacts and decarbonization requires ongoing monitoring from local scale further deployment actions to improve transport demand (user characteristics modal choice) supply (infrastructure services). analysis pollution sources evaluation possible scenarios are preliminary mitigation impacts. In particular, study geometrical funct...

A number of the Intelligent Transportation System (ITS) solutions have been implemented in conventional vehicles in recent years. In the not too distant future driverless vehicles will share the roads with vehicles driven by human beings. In this paper, a novel algorithm for switching from one driving maneuver to another is proposed. The interface has been developed in C++ Visual Studio and usi...

This study investigated the nature and causes of unsafe driving behavior at roundabouts through an on-road study. Four urban double-lane with different layouts were selected for Sixty-six drivers (41 males 25 females) aged 18–65 years took part in Unsafe behaviors observed during situ survey divided into three categories: entry behaviors, circulation exit behaviors. Three chi-square automatic i...

Whether the safest roundabout design for cyclists is to separate cycle crossings or integrate cyclists with motorists is an extensively discussed issue. Studies using accident statistics indicate that a separated cycle crossing is the safest for high motor vehicle volumes. However, the results have not been satisfyingly explained. This article combines quantitative and qualitative methods in tr...

IN T R O D U C T IO N A passing lane is an added lane provided in one or both directions of travel on a conventional tw o-lane highw ay to im prove passing oppo r­ tunities. T his definition includes passing lanes in level or rolling terra in , clim bing lanes on grades, and short four-lane sections. T he length of the added lane can vary from 1,000 feet as m uch as 3 miles. Figure 1 illustrate...