Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Predictive spatial network analysis for high resolution transport modelling, applied to cyclist flows, mode choice and targeting investment

Cooper, Crispin 2018. Predictive spatial network analysis for high resolution transport modelling, applied to cyclist flows, mode choice and targeting investment. International Journal of Sustainable Transportation 12 (10) , pp. 714-724. 10.1080/15568318.2018.1432730

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (1MB) | Preview

Abstract

Betweenness is a measure long used in spatial network analysis (SpNA) to predict flows of pedestrians and vehicles, and more recently in public health research. We improve on this approach with a methodology for combining multiple betweenness computations using cross-validated ridge regression to create wide-scale, high-resolution transport models. This enables computationally efficient calibration of distance decay, agglomeration effects, and multiple trip purposes. Together with minimization of the Geoffrey E. Havers (GEH) statistic commonly used to evaluate transport models, this bridges a gap between SpNA and mainstream transport modeling practice. The methodology is demonstrated using models of bicycle transport, where the higher resolution of the SpNA models compared to mainstream (four-step) models is of particular use. Additional models are developed incorporating heterogeneous user preferences (cyclist aversion to motor traffic). Based on network shape and flow data alone the best model gives reasonable correlation against cyclist flows on individual links, weighted to optimize GEH (r2 = 0.78, GEH = 1.9). As SpNA models use a single step rather than four, and can be based on flow data alone rather than demographics and surveys, the cost of calibration is lower, ensuring suitability for small-scale infrastructure projects as well as large-scale studies.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Geography and Planning
Publisher: Taylor & Francis
ISSN: 1523-908X
Date of First Compliant Deposit: 26 January 2018
Date of Acceptance: 18 January 2018
Last Modified: 22 Jul 2019 15:57
URI: http://orca.cf.ac.uk/id/eprint/108489

Actions (repository staff only)

Edit Item Edit Item

Downloads

Downloads per month over past year

View more statistics