Forecasting district-wide pedestrian volumes in multi-level networks in high-density mixed-use areas
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Date
2022-08-12
Publication Type
Conference Paper
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yes
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Abstract
This paper is concerned with improvements in the forecasting of pedestrian flows in multilevel pedestrian networks in high-density urban environments. 3D network topology measures are combined with land-use data, and validated against extensive pedestrian counts, to provide both evidence for the applicability of network analysis in tropical metropolises, as well as a calibrated tool for urban planners.
The research focuses on four areas in Singapore. These areas have in common that they all are prominent transport hubs, but differ in surrounding land-use types and dominant network topology (e.g. indoor, outdoor, above ground, below ground, at grade). Multi-level pedestrian networks were drawn based on OpenStreetMap, include sidewalks on both sides of major roads for a radius up to 2 kilometres from the site centroids. Spatial network analysis was performed using sDNA which allows vertical networks to generate measures describing the spatial configuration of the network.'Subsequently, pedestrian counts were conducted during three consecutive days. In total, counts were conducted at more than 250 locations in 2018 and 2019, well before the global COVID19 pandemic. Pedestrian flows are set against a series of variables, including pedestrian attractors and generators (e.g. shops, offices, hotels, dwellings), and variables describing the spatial configuration of the network, using advanced regression models.
Our results show that betweenness metrics (i.e. space syntax choice) combined with land-use yield high predictive power. Dependent on the study site, network metrics based on angular distance outperform those based on metric distance or perceived link distance. This research demonstrates that is necessary to account for the multi-level nature of networks, and that indoor flows through private developments cannot be neglected, in particular when planning for integrated transport developments. The paper concludes with recommendations and implications for practice.
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Publication status
published
Book title
Proceedings 13th International Space Syntax Symposium
Journal / series
Volume
Pages / Article No.
559
Publisher
Western Norway University of Applied Sciences, Department of Civil Engineering
Event
13th International Space Syntax Symposium (13SSS)
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Methods
Software
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Date collected
Date created
Subject
Pedestrian demand; Network topology; Betweenness; Perceived distance; Transport oriented development
Organisational unit
03987 - Hölscher, Christoph / Hölscher, Christoph
08060 - FCL / FCL
Notes
Conference lecture held on June 24, 2022.