CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Assessing the implications of aggregating data by activity-based categories for urban freight trip generation modeling

Ivan Sanchez-Diaz (Institutionen för teknikens ekonomi och organisation, Logistik och transport) ; Jesus Gonzalez-Feliu ; Christian Ambrosini
Information Systems, Logistics and Supply Chain Conference Proceedings (2016)
[Konferensbidrag, refereegranskat]

This paper studies the implication of aggregating establishments by categories with different levels of detail for modeling urban freight trip generation. To this effect, the authors use a dataset of 2.970 establishments collected in 1998-1999 in France to conduct a formal assessment of FTG patterns homogeneity inside the traditional activity-based grouping (retail, manufacturing, wholesale, etc.). The results shows that, although, for some categories the traditional high-level aggregation includes sub-sectors with homogenous FTG patterns and thus produces appropriate models; in some other cases (e.g., retail, manufacturing), the sub-sectors have different FTG patterns and thus more detailed data is needed to calibrate accurate models. This research can be used to enhance the efficiency of data collection, as it identifies some sub-sectors that need larger efforts for data collection, and some other categories where FTG homogeneity allows for less detailed data collection without hampering the quality of the models.

Nyckelord: Freight trip generation; urban goods transport; accuracy assessment; RMSE



Den här publikationen ingår i följande styrkeområden:

Läs mer om Chalmers styrkeområden  

Denna post skapades 2016-06-08.
CPL Pubid: 237451

 

Institutioner (Chalmers)

Institutionen för teknikens ekonomi och organisation, Logistik och transport (2005-2016)

Ämnesområden

Transport
Transportteknik och logistik

Chalmers infrastruktur