Analytical evaluation of flexible-sharing strategies on multimodal arterials

Haitao He, Monica Menendez, S. Ilgin Guler

    Research output: Contribution to journalArticle

    Abstract

    This paper examines strategies that allocate road space between modes of transport in a flexible and dynamic manner at a link or a node of an arterial by moving buses in front of the car queues without continuously banning cars from using one full lane. These strategies are collectively referred to as flexible-sharing strategies, and are modelled parsimoniously using a single parameter to describe their performance at the local level. This model provides a solid building block to examine these strategies at large infrastructure levels. We build an analytical framework with input–output systems and fixed set theory to evaluate bimodal arterials with flexible-sharing strategies implemented at multiple locations. Using this framework, the performance of a bimodal arterial is quantified by a set of vehicle throughput. This set is convex with linear constraints, which can be used to solve optmization problems on bimodal arterials. The requirements to efficiently identify links and nodes to install flexible-sharing strategies along a bimodal arterial are mathematically established. Lastly, one particular flexible-sharing strategy, the pre-signal, is illustrated as an example both mathematically and with a calibrated simulation.

    Original languageEnglish (US)
    JournalTransportation Research Part A: Policy and Practice
    DOIs
    StateAccepted/In press - Jan 1 2018

    Fingerprint

    Railroad cars
    Set theory
    evaluation
    Throughput
    set theory
    Evaluation
    performance
    road
    infrastructure
    simulation
    Node
    Car

    Keywords

    • Arterial
    • Bus priority
    • Capacity
    • Multimodal
    • Optimization
    • Pre-signal
    • Traffic flow

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Transportation
    • Management Science and Operations Research

    Cite this

    Analytical evaluation of flexible-sharing strategies on multimodal arterials. / He, Haitao; Menendez, Monica; Ilgin Guler, S.

    In: Transportation Research Part A: Policy and Practice, 01.01.2018.

    Research output: Contribution to journalArticle

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