Evaluation of accidents and sefety of road transportation withmethod of climatic hazards in karaj- chalous road

Different factors affect on road transportation safety, one of them is theenvironmental hazards, among the environmental hazards affecting on the roadtransportation safety, it can be mentioned about the avalanche, rain, snow, frost andfog phenomena. In this research, in addition to evaluating the relation between each ofenvironmental hazards as well as road transportation safety in the KARAJCHALOUSroute, it was took an action for providing the accident hazard probableplans in each environmental diffirent manners using the observed information and datain the are view. According to the obtained results, there are the most hazard probableduring the raining from the kilometer 95 to 145, while being the frost phenomenonfrom the kilometer 35 to 85, during the snowing from the km 45 to 85 as well asduring the fog from km 96 to 130 and during falling avalanches from km 56 to 70 ofthe KARAJ- CHALOUS route being shown in the plan.