Abstract
While assigning given OD demand flows onto network links, travel times along different routes could be varied depending on respective traffic volumes. To achieve equilibrium, all used routes should have the minimum and identical travel times. Such route travel times are composed by link travel times and end of link delay. Upstream and downstream traffic signals are coordinated through bandwidth maximization. Path flows and path travel times are modeled to be responsive to traffic signal settings to enable attractive path choices. Approximated linear function will be established to linearize the end of link delay in TRANSYT model. The problem is formulated as a Binary-Mixed-Integer-Linear-Program and could be solved by standard branch-and-bound method.
Highlights
A conventional approach for designing linked traffic signal settings is the MAXBAND method in which bandwidths of green signals are maximized to ensure smooth arterial progression across junctions [1]
In the lane-based framework, upstream and downstream junctions are connected through proper lane markings and traffic signal settings
Green duration times for turns at junctions are optimized by bandwidth maximization along selected origins, destinations, paths across upstream and downstream junctions
Summary
A conventional approach for designing linked traffic signal settings is the MAXBAND method in which bandwidths of green signals are maximized to ensure smooth arterial progression across junctions [1]. In the lane-based framework, upstream and downstream junctions are connected through proper lane markings and traffic signal settings. Along a selected main stream of flow, a maximum green bandwidth is designed to promote efficient traffic flowing. To integrate this design concept to the latest lane-based method to design signalized networks, we would like to maximize green bandwidths between upstream and downstream junctions so as to provide proper offsets among consecutive upstream and downstream junctions to have smooth traffic flowing. Green bandwidths are defined as objective function and to be maximized
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