Investigation of environmental factors affecting drivers' urban accidents

Driving in adverse environmental conditions is a challenge that accounts for a large proportion of deaths due to traffic accidents. The purpose of this article is to investigate the environmental factors affecting drivers' urban accidents. This article has been done by descriptive-analytical method and the results of this article show that factors such as: snow, rain, foggy weather, geometry of the place, and the type of area cause more cracks. Due to the focus of the traffic police on human factors and the application of the law and regulations on traffic and the relative control of human factors, this vacuum is felt in the country that policies and planning pay more attention to natural factors. They are effective in traffic accidents so that they can design corrections on the most influential factors. Improving the physical environment in driving will make the efforts of the country's traffic police to control the severity of injuries more visible.