Empirical Shipment Size Model for Urban Freight and its Implications. Issue 5 (May 2020)

• Record Type: Journal Article
• Authors: Sakai, Takanori; Alho, André; Hyodo, Tetsuro; Ben-Akiva, Moshe
• Is Part Of: Transportation research record. Volume 2674:Issue 5(2020)
• Page Start: 12
• Page End: 21
• Publication Date: 2020-05
• Subjects: Transportation -- Periodicals; Roads; Transport -- Périodiques; Routes -- Périodiques; Routes -- Conception et construction -- Périodiques; Roads; Transportation; 388.05
• DOI: 10.1177/0361198120914890
• Languages: English
• ISSNs: 0361-1981

Abstract

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.