Work

Reducing the uncertainty induced by spatial aggregation in accessibility and spatial interaction applications

Year: 2017

Type: article

Abstract: Analyses of spatial interaction are to some degree plagued by uncertainty regarding the impact of spatially dispersed interaction masses within zones on travel times. In this paper, interaction-weighted travel times are computed from a matrix between regularly distributed points at fine resolution, and used together with secondary data to improve estimates of interaction weighted travel time based on commonly applied methods. The paper proposes a method for computing intra-zonal, interaction weighted travel times that is considerably less sensitive to spatial aggregation than existing approaches, and demonstrates that population-weighted centroids are to be preferred over geographically-weighted centroids.

Source: Journal of Transport Geography

DOI: 10.1016/j.jtrangeo.2017.04.001

Authors: Marcin Stępniak, Chris Jacobs-Crisioni

Institutions: Institute of Geography and Spatial Organization, Polish Academy of Sciences, Polish Academy of Sciences, European Commission, Joint Research Centre

Language: English

Topic: Transportation Planning and Optimization

Subfield: Transportation

Field: Social Sciences

Domain: Social Sciences

SDG: Sustainable cities and communities

Open Access status: hybrid

Estimated APC paid: $2,990