Traffic Control on Queue Spillbacks at Bus Stops

Abstract:

To address the issue of queue spillbacks at bus stops due to high traffic volumes, this study focused on the queue formation, analyzed the relationship between the capacity and the traffic demand at bus stops, and proposed an intersection control approach to avoid queue spillbacks at bus stops. Firstly, a bus delay model and a dwelling time model were built. Then, the judgement models of queue spillbacks and on-schedule buses were built based on the above two models. Finally, these models were applied to a traffic control scheme and an approach to avoiding queue spillbacks at bus stops was proposed, which could also provide bus priority control. VISSIM software was used for simulation validation and the results demonstrated that the proposed control approach was able to prevent queue spillbacks at bus stops.

Key words:traffic engineering;spillback control;simulation validation;queue at bus stop;judgment model