Evaluation of pedestrian safety around bus stops using geographic information systems

Yüksekol, İrem
Pedestrians are the most vulnerable road users in terms of traffic safety. Public transit users mostly have a pedestrian trip before and/or after the transit one. Thus, pedestrian activity is produced at transit stops naturally. The main focus of this study is pedestrian safety problems around transit stops, more specifically bus stops. The proposed methodology first includes Geographic Information Systems (GIS) analyses of the pedestrian safety along the study corridors and around bus stops on them; this enables determination of accident-prone corridor segments and bus stops, respectively. Later, two analyses are studied to understand their correlation. Finally, linear regression analyses are performed to find the significant factors affecting pedestrian safety. These analyses use parameters created in the GIS analyses in the first part, as well as others (i.e. built environment, traffic network, etc.) that have potential impact on pedestrian movement or safety. In corridor safety models, the number of pedestrian accidents or accident density (or some transformation of them) is used as the dependent variable; while it is selected as the total number of accidents within a selected buffer zone in the bus stop safety models. The case study corridors are selected based on the high density of pedestrian accidents in Ankara, including the Central Business District (CBD) and four main arterials serve from CBD to different regions. The bus stops on corridors with high motorized and pedestrian flows are found to be more critical than others.


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Citation Formats
İ. Yüksekol, “Evaluation of pedestrian safety around bus stops using geographic information systems,” M.S. - Master of Science, Middle East Technical University, 2012.