Paper Details

TRB 90th Annual Meeting (January 23-27, 2011)

Event Number:	738
Event Title:	Modeling Theories and Practices in Freight Planning and Logistics
Event Date:	Jan 26 2011 2:30PM- 5:00PM
Event Location:	Shoreham, Blue Room Foyer
Event Description:
Event Agenda:

Online Freight Network Assignment Model with Transportation Disruptions and Recourse (11-3252)

Continuous real-time monitoring of shipment cost and delivery time is increasingly used by companies to reduce transportation costs while avoiding costly delays or disruptions. Recourse refers to the ability of the shipper to update his/her routing strategy depending on information obtained about the state of the network disruptions. This research proposes an adaptive routing policy that will help shippers to save costs by reacting to information updates. Public transportation agencies can also utilize this formulation to predict the behavior of shippers under disruptions in multimodal transportation networks. The principal focus and contribution of this paper is the formulation and analysis of a mathematical model that for a new type of freight network assignment problem with recourse defined in a dynamic environment and in the presence of probable network disruptions or significant delays. The primary contributions of this work are to develop a mathematical model: (i) to better capture shipper behavior in the presence of network disruptions and re-routing, and (ii) to include the heterogeneity in shipper routing behavior as a result of commodity/product, mode, and logistics system characteristics.

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