01736065

Component

https://doi.org/10.1177/0361198120914890

Modeling shipment size for intra-city shipments is a subject that has not been sufficiently addressed in past research, despite its growing importance in disaggregate freight modeling. While past research on shipment size estimation mainly focuses on inter-city shipments, intra-city shipments differ from them in various aspects. In filling this research gap, this study estimates shipment size models using the records of intra-city shipments, identifying the effects of factors and heterogeneity on the shipment size selection mechanism. The estimated coefficients are also compared against their theoretical values derived from a conceptual economic order quantity model. The estimated empirical models highlight the characteristics of intra-city shipments and indicate the importance of both receiver function and commodity type, and also vehicle operation type, in capturing the nuances of the selection mechanism among intra-city shipments.

The authors do not have permission to share data. © National Academy of Sciences: Transportation Research Board 2020.

English

pp 12-21

2020-5

Transportation Research Record: Journal of the Transportation Research Board

Web

References (20)

Commodity flow; Empirical methods; Mathematical models; Shipments; Urban goods movement

Freight Transportation; Operations and Traffic Management; Planning and Forecasting

TRIS, TRB, ATRI

Apr 8 2020 3:04PM