Dynamic cities : Location-based accessibility modelling as a function of time

Show full item record



Permalink

http://hdl.handle.net/10138/235457

Citation

Järv , O , Tenkanen , H T O , Salonen , M P , Ahas , R & Toivonen , T K 2018 , ' Dynamic cities : Location-based accessibility modelling as a function of time ' , Applied Geography , vol. 95 , pp. 101-110 . https://doi.org/10.1016/j.apgeog.2018.04.009

Title: Dynamic cities : Location-based accessibility modelling as a function of time
Author: Järv, Olle; Tenkanen, Henrikki Toivo Olavi; Salonen, Maria Pauliina; Ahas, Rein; Toivonen, Tuuli Kaarina
Other contributor: University of Helsinki, Department of Geosciences and Geography
University of Helsinki, Department of Geosciences and Geography
University of Helsinki, Department of Geosciences and Geography
University of Helsinki, Department of Geosciences and Geography

Date: 2018-06
Language: eng
Number of pages: 10
Belongs to series: Applied Geography
ISSN: 0143-6228
DOI: https://doi.org/10.1016/j.apgeog.2018.04.009
URI: http://hdl.handle.net/10138/235457
Abstract: The concept of accessibility – the potential of opportunities for interaction – binds together the key physical components of urban structure: people, transport and social activity locations. Most often these components are dynamic in nature and hence the accessibility landscape changes in space and time based on people's mobilities and the temporality of the transport network and activity locations (e.g. services). Person-based accessibility approaches have been successful in incorporating time and space in the analyses and models. Still, the more broadly applied location-based accessibility modelling approaches have, on the other hand, often been static/atemporal in their nature. Here, we present a conceptual framework of dynamic location-based accessibility modelling that captures the dynamic temporality of all three accessibility components. Furthermore, we empirically test the proposed framework using novel data sources and tools. We demonstrate the impact of temporal aspects in accessibility modelling with two examples: by investigating food accessibility and its spatial equity. Our case study demonstrates how the conventional static location-based accessibility models tend to overestimate the access of people to potential opportunities. The proposed framework is universally applicable beyond the urban context, from local to global scale and on different temporal scales and multimodal transport systems. It also bridges the gap between location-based accessibility and person-based accessibility research.
Subject: 1171 Geosciences
dynamic accessibility
Mobility
space-time modelling
big data
travel time
public transport
spatial equity
Dynamic accessibility
Space-time modelling
Big data
Travel time
Public transport
Spatial equity
MOBILE PHONE DATA
PUBLIC TRANSPORT
LAND-USE
SERVICE DELIVERY
SOCIAL EXCLUSION
OPENING HOURS
TRAVEL-TIMES
HEALTH-CARE
EQUITY
SPACE
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
1_s2.0_S014362281731144X_main.pdf 2.073Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record