TY - JOUR PY - 2020// TI - Signal timing optimization model for intersections in traffic incidents JO - Journal of advanced transportation A1 - Wang, Jiawen A1 - Hang, Jiayu A1 - Zhou, Xizhao SP - e1081365 EP - e1081365 VL - 2020 IS - N2 - The intersection control and management can alleviate the traffic congestion caused by traffic incidents. Therefore, it becomes essential to develop a signal optimization method for intersections influenced by traffic incidents, which will be beneficial to prevent congestion spreading. In this paper, the proposed model is capable of maximizing the intersection throughput by comprehensively considering the queue length as the penalty value. The headway of leaving vehicles is assumed to follow the Cowan's M3 headway distribution, where formulas for queue length can be derived based on gap acceptance theory. To satisfy the conditions for efficiently identifying feasible solutions in a short time, a heuristic algorithm (simulated annealing algorithm) is employed to solve the model. The numerical results can validate that the proposed method can solve the problem more efficiently and alleviate the intersection congestion caused by the incidents more desirably. When the incident occurs away from the intersection stop line, the impacts on intersection throughput will be gradually weakened. The proposed method is capable of improving the signalized intersection throughput while preventing the congestion from spreading to the upstream intersection.
Language: en
LA - en SN - 0197-6729 UR - http://dx.doi.org/10.1155/2020/1081365 ID - ref1 ER -