TY  - JOUR
PY  - 2023//
TI  - Probabilistic prediction of collisions between cyclists and vehicles based on uncertainty of cyclists' movements
JO  - Transportation research record
A1  - Pan, Di
A1  - Han, Yong
A1  - Jin, Qianqian
A1  - Kan, Jin
A1  - Huang, Hongwu
A1  - Mizuno, Koji
A1  - Thomson, Robert
SP  - 1151
EP  - 1164
VL  - 2677
IS  - 3
N2  - The uncertainty of cyclists? movements has a significant impact on predicting the risk of collisions between cyclists and vehicles. The purpose of this study was to provide a method for assessing collision risk using probability, taking into account the uncertainty of cyclists? movements. A cyclist model was first developed using a first-order Markov model. Then, based on Monte Carlo sampling, the distribution characteristics of the minimum distance and the time-to-collision (TTC) between the vehicle and the cyclist were extracted. By fitting these features, the probability density functions of the collision distance and TTC were estimated to derive the collision probabilities. The effectiveness of the collision probability prediction model was benchmarked against a deterministic crash risk prediction model (autonomous emergency braking [AEB] system) applied to three real-world cases previously reconstructed in an in-depth crash database. The results show that the collision probability prediction model can effectively predict the risk of collisions between cyclists and vehicles with better accuracy than AEB systems using a fixed trigger threshold. This study is a valuable reference for the development of advanced vehicle collision avoidance systems to protect cyclists and other vulnerable road users.<p />  <p>Language: en</p>
LA  - en
SN  - 0361-1981
UR  - http://dx.doi.org/10.1177/03611981221121270
ID  - ref1
ER  -