Paper Details

TRB 91st Annual Meeting (January 22-26, 2012)

Event Number:	295
Event Title:	Current Research in Freight Transportation and Logistics Planning and Operations
Event Date:	Jan 23 2012 10:45AM- 12:30PM
Event Location:	Shoreham, Blue Room Foyer
Event Description:	This session exhibits papers in the general area of freight and logistics planning and operations dealing with efficiency, sustainability, and reliability. It spans topics from urban freight mobility, intermodal transportation, port and marine operations, and freight demand modeling to location problems of alternative energy production.
Event Agenda:

Model for Network Assignment Problem of Capacitated Freight with Disruptions: Integer Multicommodity Flow with Recourse (12-2790)

This research proposes a modeling framework for freight network assignment problem with recourse, network travel time and cost disruptions, and link flow capacity constraints. Recourse is defined as the ability of a user to reconsider and adapt his/her routing decisions in response to newly the acquired network disruption information. When real-time network shipment tracking and monitoring allow companies to have a routing recourse, it is essential to simultaneously consider network capacity because if a disruption (man-made or nature related) alters network flows significantly the capacity of alternative or secondary routes may be quickly reached. The primary focus of this paper is to develop and solve a new freight mathematical model with a capacitated network and adaptive routing. Results show that simultaneous consideration of recourse and capacity constraints are vastly superior than benchmark results obtained using non-adaptive deterministic behavior.

Authors
     Unnikrishnan, Avinash , West Virginia University
     Shahabi, Mehrdad , West Virginia University
     Figliozzi, Miguel , Portland State University