Operational control approach for connected-autonomous-bus line in mixed public transit environment
Document Type
Journal Article
Publication Date
2025
Subject Area
place - asia, place - urban, mode - bus, infrastructure - bus/tram priority, infrastructure - traffic signals, infrastructure - vehicle, technology - automatic vehicle monitoring, technology - intelligent transport systems, planning - methods
Keywords
Connected and autonomous bus, hierarchical control, speed planning, bus signal priority, rolling optimisation
Abstract
The use of connected and autonomous buses (CABs) is growing, and surface public transit is being transformed into a mixture of manually driven buses (MDBs) and CABs. We aim to establish a hierarchical optimal control model to ensure the efficient operation of CABs in a mixed public transit environment. The first level outputs the planned speed to improve the headway uniformity. Considering the operational uncertainties of MDBs and the output parameters from the first level, the second level minimises the speed changes and the number of CABs entering the node queue and determines the speed control and signal priority schemes. We propose a solution algorithm based on rolling optimisation and establish simulation cases based on the bus lines in Beijing. Compared to both the uncontrolled scheme and the single-speed control scheme, this approach significantly reduces headway deviation and the number of CABs entering the node queue.
Rights
Permission to publish the abstract has been given by Taylor&Francis, copyright remains with them.
Recommended Citation
Hu, B., He, L., & Jing, W. (2025). Operational control approach for connected-autonomous-bus line in mixed public transit environment. Transportmetrica B: Transport Dynamics, 13(1), 2579745.
