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    Optimization Model for Allocating Resources for Highway Safety Improvement at Urban Intersections

    Source: Journal of Transportation Engineering, Part A: Systems:;2012:;Volume ( 138 ):;issue: 005
    Author:
    Sabyasachee Mishra
    ,
    Snehamay Khasnabis
    DOI: 10.1061/(ASCE)TE.1943-5436.0000364
    Publisher: American Society of Civil Engineers
    Abstract: The authors present a procedure for allocating resources for implementing safety improvement alternatives at urban intersections over a multiyear planning horizon. The procedure, on the basis of optimization techniques, attempts to maximize benefits measured in dollars saved by reducing crashes of different severity categories subject to budgetary and other constraints. It is presented in two parts: (1) a base case including the objective function and a set of mandatory constraints; and (2) additional policy constraints/special features that can be separately incorporated to the base case. Demonstration of the procedure is presented on intersections in the Detroit metropolitan region, in which economic losses resulting from traffic crashes at intersections are estimated to exceed $4 billion annually. The proposed model can allocate resources for safety improvement alternatives over a planning horizon, given a number of independent locations and a number of mutually exclusive alternatives at each location. The policy constraints provide the analyst the flexibility of adding equity, urgency, and other features to the base case. An integer programming technique is applied to solve the demonstration problem.
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      Optimization Model for Allocating Resources for Highway Safety Improvement at Urban Intersections

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    http://yetl.yabesh.ir/yetl1/handle/yetl/69373
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    • Journal of Transportation Engineering, Part A: Systems

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    contributor authorSabyasachee Mishra
    contributor authorSnehamay Khasnabis
    date accessioned2017-05-08T22:02:09Z
    date available2017-05-08T22:02:09Z
    date copyrightMay 2012
    date issued2012
    identifier other%28asce%29te%2E1943-5436%2E0000406.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/69373
    description abstractThe authors present a procedure for allocating resources for implementing safety improvement alternatives at urban intersections over a multiyear planning horizon. The procedure, on the basis of optimization techniques, attempts to maximize benefits measured in dollars saved by reducing crashes of different severity categories subject to budgetary and other constraints. It is presented in two parts: (1) a base case including the objective function and a set of mandatory constraints; and (2) additional policy constraints/special features that can be separately incorporated to the base case. Demonstration of the procedure is presented on intersections in the Detroit metropolitan region, in which economic losses resulting from traffic crashes at intersections are estimated to exceed $4 billion annually. The proposed model can allocate resources for safety improvement alternatives over a planning horizon, given a number of independent locations and a number of mutually exclusive alternatives at each location. The policy constraints provide the analyst the flexibility of adding equity, urgency, and other features to the base case. An integer programming technique is applied to solve the demonstration problem.
    publisherAmerican Society of Civil Engineers
    titleOptimization Model for Allocating Resources for Highway Safety Improvement at Urban Intersections
    typeJournal Paper
    journal volume138
    journal issue5
    journal titleJournal of Transportation Engineering, Part A: Systems
    identifier doi10.1061/(ASCE)TE.1943-5436.0000364
    treeJournal of Transportation Engineering, Part A: Systems:;2012:;Volume ( 138 ):;issue: 005
    contenttypeFulltext
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