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Title: Demand and routing models for urban goods movement simulation
Authors: Polimeni, Antonio
Russo, Francesco
Vitetta, Antonino
Keywords: City LogisticsGoods movementVehicle routing problem
Issue Date: 2010
Publisher: EUT Edizioni Università di Trieste
Source: Polimeni, A., Russo, F., Vitetta, A. (2010) Demand and routing models for urban goods movement simulation, European Transport \ Trasporti Europei, 46, pp. 3-23
Series/Report no.: European Transport / Trasporti Europei
This paper presents a macro-architecture for simulating goods movements in an urban area. Urban
goods supply is analysed when the retailer is the decision-maker and chooses to supply his/her shop. Two
components are considered: demand in terms of goods supply and vehicle routing with constraints to
simulate goods movements.
To analyse demand we consider a multi-step model, while to analyse goods movements a Vehicle
Routing Problem with Time Windows (VRPTW) is formalized. We examine the distribution process for a
VRPTW in which the optimum paths between all the customers are combined to determine the best
vehicle trip chain. As regard optimum path search, a multipath approach is proposed that entails the
generation of more than one path between two delivery points. Some procedures (traffic assignment, real
time system measurement, reverse assignment) to estimate system performance are also proposed.
Finally, heuristics to solve the proposed problem are reported and their results are compared with those
Type: Article
ISSN: 1825-3997
Appears in Collections:European Transport / Trasporti Europei (2010) 46/XVI

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