01657938

Component

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 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 annual average daily traffic (AADT), access density, percentage of trucks and the presence of two-way left turn lanes (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.

This paper was sponsored by TRB committee AHB70 Standing Committee on Access Management.

18-00222

English

18p

2018

Transportation Research Board 97th Annual Meeting

Digital/other

Figures; References; Tables

Access control (Transportation); Annual average daily traffic; Highway factors in crashes; Left turn lanes; Pedestrian safety; Pedestrian vehicle crashes

Highways; Operations and Traffic Management; Safety and Human Factors

Transportation Research Board Annual Meeting 2018 Paper #18-00222

TRIS, TRB, ATRI

Jan 8 2018 10:04AM