A new transit assignment model based on line and node strategies

Authors

Hualing Ren
Yingjie Song
Jiancheng Long
Bingfeng Si

Document Type

Journal Article

Publication Date

2021

Subject Area

place - asia, place - urban, ridership - modelling, planning - methods

Keywords

Transit assignment, Line and node strategy, Transfer constraint, Variational inequality problem, Projection algorithm

Abstract

Passengers traveling on transit networks involve two kinds of decision-making strategies: deciding which lines are attractive at an origin or transfer node (denoted line strategy, LS), or deciding which node to transfer at when riding a line (denoted node strategy, NS). Combining these two strategies, this paper proposes a novel variational inequality formulation for the user equilibrium passenger assignment problem. The inclusion of the NS eliminates the need for passenger assignment on a large augmented graph, reducing the modeling complexity and making it easier to track all passengers’ travel routes. Moreover, constraints on the maximal number of transfers—which are crucial in practical decision-making on transit networks—are explicitly included, further drastically reducing the set of passengers’ feasible strategies. Furthermore, some extant strategy-based transit assignment models are shown to be a special case of the proposed model when the transfer constraint is removed. Finally, the properties of the proposed model are illustrated on a small network, and the model and algorithm exhibit huge advantages on the chosen transit subnetwork of Beijing.

Rights

Permission to publish the abstract has been given by Elsevier, copyright remains with them.

Comments

Transportation Research Part B Home Page:

http://www.sciencedirect.com/science/journal/01912615

Recommended Citation

Ren, H., Song, Y., Long, J., & Si, B. (2021). A new transit assignment model based on line and node strategies. Transportation Research Part B: Methodological, Vol. 150, pp. 121-142.