As the world rapidly urbanizes, traffic congestion has become a significant global problem. Using the macroscopic fundamental diagram (MFD) to evaluate the traffic capacity of urban networks is advantageous because it can present a complete picture of the traffic conditions of a particular road network. This paper studied the road network capacity of a 15.4 km2 region in Shanghai using the MFD based on microscopic traffic simulation with projected increased and decreased travel demands. We estimated the OD matrix using traffic count data in Shanghai from 2011 to 2020, and carried out traffic simulations with travel demands ranging from 25% to 400% of the 2020 morning peak hour. Results showed that the areas analyzed reached similar average peak flows per lane at different critical densities per lane. The traffic capacity and critical accumulation per area obtained correspond with results from major world cities, indicating the healthy capacity of the road network.
Evaluating the Road Network Capacity of Shanghai with the Macroscopic Fundamental Diagram
22nd COTA International Conference of Transportation Professionals ; 2022 ; Changsha, Hunan Province, China
CICTP 2022 ; 2559-2570
2022-09-08
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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