Developing standard pedestrian-equivalent factors: passenger car–equivalent approach for dealing with pedestrian diversity

Galiza, Ronald John and Ferreira, Luis (2012). Developing standard pedestrian-equivalent factors: passenger car–equivalent approach for dealing with pedestrian diversity. In: Transportation Research Record. Transportation Research Board (TRB) 91st Annual Meeting, Washington, United States, (166-173). 21-26 January 2012. doi:10.3141/2299-18

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Author Galiza, Ronald John
Ferreira, Luis
Title of paper Developing standard pedestrian-equivalent factors: passenger car–equivalent approach for dealing with pedestrian diversity
Conference name Transportation Research Board (TRB) 91st Annual Meeting
Conference location Washington, United States
Conference dates 21-26 January 2012
Proceedings title Transportation Research Record   Check publisher's open access policy
Journal name Transportation Research Record   Check publisher's open access policy
Place of Publication Washington, United States
Publisher U.S. National Research Council, Transportation Research Board
Publication Year 2012
Sub-type Fully published paper
DOI 10.3141/2299-18
Open Access Status File (Publisher version)
ISSN 0361-1981
2169-4052
Volume 2299
Issue 2299
Start page 166
End page 173
Total pages 8
Collection year 2013
Language eng
Abstract/Summary Similar to vehicular traffic, pedestrians, despite having diverse capabilities and body sizes, can be classified as heterogeneous. The use of vehicular traffic resolves the diversity issue with a conversion of heterogeneous vehicle flow into an equivalent flow with the use of passenger car–equivalent (PCE) factors. Analysis of pedestrian flow has yet to incorporate pedestrian diversity analysis implicitly into the design of pedestrian facilities, although some form of adjustment has been suggested. This paper introduces the concept of PCE-type factors for mixed pedestrian traffic called standard pedestrian-equivalent (SPE) factors. Estimates of SPE factors are made relative to the average commuter. The equivalent total travel time approach for PCE estimation was adapted to consider the effects of the differences in physical and operational characteristics of pedestrians, particularly walking speed and body size. Microsimulation of pedestrians was employed to evaluate hypothetical pedestrian proportions so as to generate corresponding flow relationships. Walking speeds and body sizes were varied across different flow conditions, walkway widths, and proportions of other pedestrian types. The first part of this paper explores how the two pedestrian characteristics (walking speed and body size) influence estimated SPE factors. The second part is a case study in which field-collected data illustrate SPE factors calculated for older adults, obese pedestrians, and their combination. An application of SPE factors demonstrates the robustness of the methodology in bridging the gap between pedestrian compositions and planning practice.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Conference Paper
Collections: School of Civil Engineering Publications
Official 2013 Collection
 
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Created: Thu, 03 Jan 2013, 20:28:06 EST by Julie Hunter on behalf of School of Civil Engineering