Laying the foundations: the use of video footage to explore pedestrian dynamics in PEDFLOW.

Willis, Alexandra, Kukla, Robert, Kerridge, Jon and Hine, Julian (2002) Laying the foundations: the use of video footage to explore pedestrian dynamics in PEDFLOW. In: Pedestrian and Evacuation Dynamics. Springer-Verlag, Berlin Heidelberg, pp. 181-186. ISBN 3-540-42690-6

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ionThis paper is concerned with how video footage of pedestrian activity in various urban environments can be used to inform the development of PEDFLOW - a microscopic, agent-based model of pedestrian flow that can be used to simulate the effects of an environmental change (e.g. widening a pavement) on how pedestrians negotiate urban space. The process can be summarized as follows: (1) video footage of pedestrians is digitized and calibrated according to real-world measurements of the filming area; (2) an interesting scenario is identified (e.g. two pedestrians approaching each other on a collision course) and all cases of this scenario selected from the video for analysis; (3) for each case, qualitative information (e.g. pedestrian group size, or final action) and quantitative data (e.g. walking speed, gap size) are recorded. For the latter, the frame-by-frame position of selected pedestrians is plotted using commercially-available image analysis software and related to key features of the environment (such as kerbs and obstacles); (4) statistical analyses are performed to extract patterns of behaviour which can be translated into algorithms that form the basis of the PEDFLOW model. In this way, the model can be developed according to realistic approximations of how pedestrians negotiate urban space.

Item Type: Book Section
ISBN: 3-540-42690-6
Uncontrolled Keywords: Pedflow; environmental change; urban space; image analysis software; negotiation;
University Divisions/Research Centres: Faculty of Engineering, Computing and Creative Industries > School of Computing
Dewey Decimal Subjects: 300 Social sciences > 360 Social problems & social services > 363 Other social problems & services
Library of Congress Subjects: H Social Sciences > HN Social history and conditions. Social problems. Social reform
Item ID: 3932
Depositing User: Computing Research
Date Deposited: 26 Jan 2011 15:24
Last Modified: 09 Mar 2016 13:21

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