Theory and models of pedestrian crossing behaviour along urban trips

Papadimitriou, E

dc.contributor.author	Papadimitriou, E	en
dc.date.accessioned	2014-03-01T02:14:50Z
dc.date.available	2014-03-01T02:14:50Z
dc.date.issued	2012	en
dc.identifier.issn	13698478	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30145
dc.subject	Behaviour	en
dc.subject	Discrete choice models	en
dc.subject	Pedestrian	en
dc.subject	Road crossing	en
dc.subject	Topology	en
dc.subject.other	Behaviour	en
dc.subject.other	Decision making process	en
dc.subject.other	Discrete choice models	en
dc.subject.other	Field surveys	en
dc.subject.other	Multinomials	en
dc.subject.other	Pedestrian	en
dc.subject.other	Pedestrian crossing	en
dc.subject.other	Pedestrian trips	en
dc.subject.other	Road crossing	en
dc.subject.other	Road network	en
dc.subject.other	Sequential decision making	en
dc.subject.other	Theoretical framework	en
dc.subject.other	Topological properties	en
dc.subject.other	Traffic conditions	en
dc.subject.other	Traffic volumes	en
dc.subject.other	Urban areas	en
dc.subject.other	Urban road networks	en
dc.subject.other	Urban trip	en
dc.subject.other	Walking speed	en
dc.subject.other	Decision making	en
dc.subject.other	Footbridges	en
dc.subject.other	Motor transportation	en
dc.subject.other	Probability	en
dc.subject.other	Roads and streets	en
dc.subject.other	Topology	en
dc.subject.other	Surveys	en
dc.title	Theory and models of pedestrian crossing behaviour along urban trips	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.trf.2011.11.007	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.trf.2011.11.007	en
heal.publicationDate	2012	en
heal.abstract	The objective of this research is to develop and test a theoretical framework for modelling pedestrian crossing behaviour along trips in urban areas. The general question examined concerns the estimation of the probability to cross at each alternative location within a pedestrian's crossing choice set, associated with each crossing decision made along an urban trip. A topological consideration of urban road networks and pedestrian trips is opted for, which enables the overall parameterisation of the problem and the estimation of the number and type of crossings along a pedestrian trip. On the basis of certain topological properties of pedestrian trips, an algorithm is then developed for determining the set of choice alternatives for each crossing along the trip. Finally, specific techniques from the family of discrete choice models are proposed for modelling the choice of a crossing location from the available alternatives in each case. Different hypotheses are examined with respect to road crossing decision making process (sequential or hierarchical decision making) and various models are tested in each case (multinomial, nested, or cross-nested models). For the development of the proposed models, a field survey is carried out, in order to collect detailed data on pedestrian trips and crossings in urban areas per road network, traffic conditions and pedestrian characteristics. The modelling results reveal increased probability of crossing at the beginning of the trip, a tendency to postpone crossings in longer trips, especially for pedestrians with increased walking speeds, increased probability of crossing at signalised junctions, when available, and increased probability of crossing at mid-block in low traffic volumes and on one-way roads. Moreover, the hypothesis of sequential decision making is proved to be more promising for the description of pedestrians' crossing choices along urban trips. © 2011 Elsevier Ltd. All rights reserved.	en
heal.journalName	Transportation Research Part F: Traffic Psychology and Behaviour	en
dc.identifier.doi	10.1016/j.trf.2011.11.007	en
dc.identifier.volume	15	en
dc.identifier.issue	1	en
dc.identifier.spage	75	en
dc.identifier.epage	94	en