%0 Journal Article
%T Traffic dynamics in bi-modal urban networks: a cross-comparison of outflow 2D-NMFD and 3D-NMFD
%J Transportmetrica B: transport dynamics
%D 2022
%A Johari, Mansour
%A Keyvan-Ekbatani, Mehdi
%A Ngoduy, D.
%V 10
%N 1
%P 555-585
%X Network macroscopic fundamental diagram (NMFD) has provided practical convenience to simulate network-level traffic dynamics using NMFD-based models. Nevertheless, only a few works have been conducted on traffic dynamics in bi-modal urban networks. This paper provides a comparison of the application of outflow 2D-NMFD and 3D-NMFD through simulating different scenarios using accumulation-based model in a single reservoir system. The models are verified using micro-simulation data as ground truth performed on a Manhattan-style grid network and a real network. The results reveal the outflow 2D-NMFD can provide accurate traffic state evolution, while the goodness of fit is the main challenge in the application of outflow 3D-NMFD. Besides, the accumulation-based model needs modifications to construct the bus accumulation profile in the test-bed with a low share of buses. Last but not least, the accuracy of the existing network-level speed models in mixed-traffic condition and its effects on traffic dynamics simulation are validated and discussed.<p /> <p>Language: en</p>
%G en
%I Informa - Taylor and Francis Group
%@ 2168-0566
%U http://dx.doi.org/10.1080/21680566.2021.2023691