01045224

Component

https://doi.org/10.3141/2008-06

http://scholar.google.com...moto&publication_year=2007

This study estimates origin–destination (O-D) matrices of light and heavy trucks on the basis of the flow of commodities in the Tokyo metropolitan area. The truck O-D matrix is generally determined by either vehicle trip-based or commodity-based approaches, although the former cannot distinguish between loaded and empty trips and does not characterize the shipments. Three major concepts are proposed in this study. First, the truck trip O-D is estimated on the basis of the commodity approach because it can utilize the characteristics of the shipments. Second, the main contribution of the model is its ability to estimate both loaded and empty trips by modeling the truck movements as round trips and trip chains. The O-D of truck movement, particularly the movement of loaded trips in round trips or zero-order trip chains, is similar to that of the commodity flows. However, both movements have relatively different O-D when the loaded trips travel from one origin to many destinations or are part of an nth-order trip chain. Finally, the trip chain is modeled on the basis of characteristics such as average payload, adjacent zones, and the commodity O-D providing the most attractive zones traveled by trucks. The performance of the model is demonstrated by using the mean square error between the estimated and observed truck O-D matrices. The model concept is then applied to lightweight products obtained from the food industry. The proposed concept enhances the trip chain behavior and provides better results than the model without trip chain behavior.

01083096

English

pp 43-50

2007

Transportation Research Record: Journal of the Transportation Research Board

9780309104340

Print

Figures (9) ; References (10) ; Tables (1)

Cities; Commodities; Commodity flow; Food industry; Freight traffic; Freight transportation; Heavy duty trucks; Highway travel; Light trucks; Matrices (Mathematics); Origin and destination; Round trips; Trip chaining; Trucking; Urban areas

Empty trips; Payload; Truck trips; Zones

Tokyo (Japan)

Freight Transportation; Geotechnology; Highways; Motor Carriers; Society; I10: Economics and Administration

TRIS, TRB, ATRI

Feb 8 2007 7:59PM

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