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Title: City Logistics: Freight Distribution Management with Time-Dependent Travel Times and Disruptive Events
Accession Number: 01515640
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: This paper addresses freight management in large, congested urban settings. Congestion creates a substantial variation in travel time (speeds) during morning peak and evening peak periods. Besides the day-to-day dynamics of traffic conditions, traffic incidents contribute significantly to urban congestion, resulting in unplanned travel delays. Urban route designs that ignore such significant variations are often found to be inefficient or even infeasible (in regard to delivery or pickup time windows) in a congested traffic environment. This limitation may lead to delays, higher operational costs, and inferior customer service. To take the dynamics of traffic conditions into account, the proposed modeling framework includes an underlying dynamic network traffic simulation-assignment model that is able to compute time-dependent shortest paths (TDSPs) and simulate individual vehicles on a realistic representation of urban road network elements, including signalization, ramp metering, and other operational controls. A two-phase set-partitioning–based heuristic approach is proposed to construct freight vehicle routes. No parameter tuning is required. The integrated modeling framework was first tested on a small network, and then the application was demonstrated on a real-world urban network, the Chicago, Illinois, area network, with problem instances of up to 500 customers with TDSPs updated at 10-min intervals.
Monograph Title: Freight Systems 2014, Volume 1: Planning, Modeling, and Logistics Monograph Accession #: 01537717
Report/Paper Numbers: 14-1463
Language: English
Authors: Jiang, LanMahmassani, Hani SPagination: pp 85–95
Publication Date: 2014
ISBN: 9780309295017
Media Type: Print
Features: Figures
(3)
; Maps; References
(38)
; Tables
(5)
TRT Terms: Geographic Terms: Subject Areas: Freight Transportation; Planning and Forecasting; I72: Traffic and Transport Planning
Files: TRIS, TRB, ATRI
Created Date: Jan 27 2014 2:33PM
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