TY - JOUR PY - 2023// TI - Empirical analysis of congestion spreading in Seoul traffic network JO - Physical review. E A1 - Jung, Jung-Hoon A1 - Eom, Young-Ho SP - e054312 EP - e054312 VL - 108 IS - 5-1 N2 - Understanding how local traffic congestion spreads in urban traffic networks is fundamental to solving congestion problems in cities. In this work, by analyzing the high-resolution data of traffic velocity in Seoul, we empirically investigate the spreading patterns and cluster formation of traffic congestion in a real-world urban traffic network. To do this, we propose a congestion identification method suitable for various types of interacting traffic flows in urban traffic networks. Our method reveals that congestion spreading in Seoul may be characterized by a treelike structure during the morning rush hour but a more persistent loop structure during the evening rush hour. Our findings suggest that diffusion and stacking processes of local congestion play a major role in the formation of urban traffic congestion.
Language: en
LA - en SN - 2470-0045 UR - http://dx.doi.org/10.1103/PhysRevE.108.054312 ID - ref1 ER -