hamzeh eskandari

Unfavorable weather conditions are one of the important factors that affect road safety. The number of road accidents in climatic conditions such as snow and rain has also increased financial losses. Therefore, in this article, researchers analyze the spatial pattern of climatic elements in the occurrence of road accidents in Bushehr province.

This research has been done with a spatial analysis approach and analyticaldescriptive method. The statistical population of the study includes all elements and road accidents that occurred in Bushehr province in a period of 5 years (2015-2016) and has been used documentary research. SPSS software was used for statistical analysis of accident and meteorological data and ArcGIS software was used for spatial analysis of data. IDW method was used for zoning the maps and R, F and Chisquare tests and multiple linear regressions has been used to compare frequencies.

The highest frequency of accidents was of injury type and in Bushehr- Borazjan police station area and it is also Injury accident type. The lowest frequency of accidents is related to Khormoj police station and it is fatal accident type. Considering the value of F which is 50.05 and the significance level which is 0.000, it can be stated with 95% confidence this model has generalizability. In the multiple linear regression method, a linear relationship was established between the dependent variable and several independent variables.

The results of studies showed that at a 95% confidence level, there is a positive and significant relationship between climatic elements (precipitation, visibility, humidity and wind speed) and the accident variable.

With the expansion of machine life and the increasing traffic in cities and roads, in contrast to the economic and welfare process resulting from the expansion of communications and the speed of movement of goods and passengers, unfortunately, the number and severity of motor vehicle accidents have increased. . Accidents are one of the most important causes of death and severe damage to life and property, and the severe social, cultural and economic effects of those human societies have been severely threatened. Among the factors involved in accidents, the contribution of climatic phenomena such as snow, rain, fog and blizzards, sandstorms, dust, dust, road surface temperature, air temperature and humidity cannot be ignored.

The present study is applied and descriptive-analytical. The statistical population is all intra-city accidents that occurred in 1397, in which the whole statistical population was used without considering the statistical sample.

The results show that in November and December, there is a significant correlation with the correlation coefficient of 0.75 between rainfall and accidents, as well as in other months and seasons of significant and direct correlation between temperature. The environment and the amount of accidents that occur are seen. The results show that according to the highest statistics obtained from the number of accidents in November, it can be said that weather factors play a major and decisive role and are considered as the main factor.