Simulation-Based Design of Urban Bi-modal Transport Systems

Gabriel Tilg, Zain Ul Abedin, Sasan Amini, Fritz Busch

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The three-dimensional passenger macroscopic fundamental diagram (pMFD) describes the relation of the network accumulation of public transport and private vehicles, and the passenger production. It allows for modeling the multi-modal traffic dynamics in urban networks and deriving innovative performance indicators. This paper integrates this concept into a multi-modal transport system design framework formulated as a simulation-based optimization problem. In doing so, we consider the competition for limited road space and the operational characteristics, such as congestion occurrences, at the strategic design level. We evaluate the proposed framework in a case study for the Sioux Falls network. Thereby, we deliver a proof of concept, and show that the proposed methodology indeed designs a transport system which benefits the overall system's performance. This paper further advances the integration of sequential model-based optimization techniques, macroscopic traffic flow concepts, and traffic simulation to design multi-modal transport systems. This supports transport planners and local authorities in composing efficient and robust transport networks.

Original languageEnglish
Article number581622
JournalFrontiers in Future Transportation
StatePublished - 2020


  • agent-based simulation
  • bi-modal transport system
  • macroscopic fundamental diagram
  • optimization
  • public transport
  • transport system design


Dive into the research topics of 'Simulation-Based Design of Urban Bi-modal Transport Systems'. Together they form a unique fingerprint.

Cite this