Title: Freight transport in urban areas: a n integrated system of models to simulate freight demand and passengers demand for purchase trips
Abstract: The urban transport system is a complex system in which freight is moved in the same transport structure in which passengers travel. Given that in many cases urban transportation modeling treats passenger and freight transportation separately, this paper proposes a modeling system to simulate goods movements at an urban scale which combines urban personal travel and commodity flows (commodity flows are generated in order to support a given need). Demand forecast is extremely important for the analysis and the modeling of transportation systems because the planning of infrastructures and services of transports results from the necessity to satisfy the needs of mobility and its characteristics. The scientific literature about freight transportation provides fewer studies than the literature about passenger transportation. Regan and Garrido (20) proposed a comprehensive state of the art of freight demand models, which can be classified into gravity models (Hutchinson (11) List and Turnquist (12); Taylor (28); Fridstrom (3); Russo and Comi (21)), input-output models (Harris and Liu (5); Marzano and Papola (13)), models of spatial equilibrium of the prices (Oppenheim (19); Nagurney (15)). A classification followed by many authors distinguishes commodity-based from truck-based models. In paper the results of an experimental survey conducted in a medium-sized city are presented. The collected data allowed a system of demand models to be developed to simulate consumer trips and goods movements at an urban scale.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 16
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