University of Twente Student Theses
Investigation of Single Bicycle Crashes with a Comparison to Non-Single Bicycle Crashes in Flevoland: A spatial and statistical analysis
Piljic, A. (2024) Investigation of Single Bicycle Crashes with a Comparison to Non-Single Bicycle Crashes in Flevoland: A spatial and statistical analysis.
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Abstract: | This research investigates to what degree built environment factors contribute to single bicycle crashes (SBCs) using police records and ambulance data from Flevoland, the Netherlands, from 2015 to 2021. For this purpose, spatial analysis techniques, including Global and Bivariate Local Moran’s I statistics, were applied to identify clustering patterns of SBCs and Non-SBCs. The Network Kernel Density Estimation (NKDE) and Density Ratio Difference (DRD) methods were employed to analyze the density of crashes on road segment level. Lastly, A Negative Binomial Regression (NBR) model was applied to investigate the relationship between built environment factors and the frequency of SBCs and Non-SBCs. The Global and Bivariate Local Moran's I statistics show that both SBCs and Non-SBCs are concentrated in specific areas rather than being randomly distributed, with SBCs notably clustering in rural areas. The Density Ratio Difference (DRD) analysis shows that Non-SBCs primarily occur on roads within urban areas, particularly in city centers. Lastly, the NBR model reveals that a high office- and population density for the area, and a high Mixed Land-Use Areas (MXI), are strongly associated with increased crash frequencies for both SBCs and Non-SBCs. Additionally, Bicycle Kilometers Travelled (BKMT) showed a negative association, while bicycle lanes marked on the carriageway when compared to roads with mixed traffic conditions positively associated with crash frequencies for both SBCs and Non-SBCs. The findings from this research can be used to support the goal of achieving zero traffic-related incidents within Flevoland. Overall, this research identifies crash patterns for SBCs and Non-SBCs, identifies built environment factors contributing to SBCs, and offers recommendations for improving cycling safety by targeting high-risk road segments. |
Item Type: | Essay (Master) |
Faculty: | ET: Engineering Technology |
Subject: | 55 traffic technology, transport technology |
Programme: | Civil Engineering and Management MSc (60026) |
Link to this item: | https://purl.utwente.nl/essays/104326 |
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