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原文传递 Impact of Access Management Practices to Pedestrian Safety

题名：	Impact of Access Management Practices to Pedestrian Safety
作者：	Chimba, D.; Ajieh, H.
关键词：	Conflict analysis##Active transportation##Crowd sourcing##Pedestrian accidents##Transportation safety##Data collection##App development##Bicycle##Conflict databases##Decision-makers##Pedestrian education##Infrastructure analysis##Enforcement compliance##
摘要：	This study focused on the impact of access management practices to the safety of pedestrians. Some of the access management practices considered to impact pedestrian safety included limiting direct access to and from major streets, locating signals, limiting the number of conflict points and separating conflict areas, removing turning vehicles from through traffic lanes, using nontraversable medians to manage left-turn movements and providing a supporting street and circulation system. The study evaluated through statistical modeling the correlation between access management practices to pedestrian crashes. Focused on the impacts of access management on pedestrian crashes, eight (8) major roadway corridors were selected and utilized for analysis. Utilizing Negative Binomial, the correlation between roadway features and pedestrian crashes were modeled. Four variables including AADT, access density, percentage of trucks and the presence of TWLT were found to be positively associated with the pedestrian crash frequency. Variables such as the presence of median, presence of crosswalk, presence of shoulders, presence of sidewalk and high speed limit had negative coefficients hence their increase or presence tends to decrease pedestrian crashes. It could therefore be concluded that though these variables had some influence on the pedestrian crashes, access density, crosswalk, sidewalk and speed limit were the most statistically significant variables that determined the frequency of the pedestrian crashes.
总页数：	21
报告类型：	科技报告