Pedestrian signalization and the risk of pedestrian-motor vehicle collisions in Lima, Peru

Boyle, Linda Ng; Miranda, J. Jaime; Quistberg, D. Alex; Ebel, Beth E.; Koepsell, Thomas D.; Johnston, Brian D.

dc.contributor.author	Quistberg, D. Alex
dc.contributor.author	Koepsell, Thomas D.
dc.contributor.author	Boyle, Linda Ng
dc.contributor.author	Miranda, J. Jaime
dc.contributor.author	Johnston, Brian D.
dc.contributor.author	Ebel, Beth E.
dc.date.accessioned	2020-06-10T18:11:35Z
dc.date.available	2020-06-10T18:11:35Z
dc.date.issued	2014
dc.identifier.uri	https://hdl.handle.net/20.500.12866/8003
dc.description.abstract	Safe walking environments are essential for protecting pedestrians and promoting physical activity. In Peru, pedestrians comprise over three-quarters of road fatality victims. Pedestrian signalization plays an important role managing pedestrian and vehicle traffic and may help improve pedestrian safety. We examined the relationship between pedestrian-motor vehicle collisions and the presence of visible traffic signals, pedestrian signals, and signal timing to determine whether these countermeasures improved pedestrian safety. A matched case-control design was used where the units of study were crossing locations. We randomly sampled 97 control-matched collisions (weighted N=1134) at intersections occurring from October, 2010 to January, 2011 in Lima. Each case-control pair was matched on proximity, street classification, and number of lanes. Sites were visited between February, 2011 and September, 2011. Each analysis accounted for sampling weight and matching and was adjusted for vehicle and pedestrian traffic flow, crossing width, and mean vehicle speed. Collisions were more common where a phased pedestrian signal (green or red-light signal) was present compared to no signalization (odds ratio [OR] 8.88, 95% Confidence Interval [CI] 1.32-59.6). A longer pedestrian-specific signal duration was associated with collision risk (OR 5.31, 95% CI 1.02-9.60 per 15-s interval). Collisions occurred more commonly in the presence of any signalization visible to pedestrians or pedestrian-specific signalization, though these associations were not statistically significant. Signalization efforts were not associated with lower risk for pedestrians; rather, they were associated with an increased risk of pedestrian-vehicle collisions.	en_US
dc.language.iso	eng
dc.publisher	Elsevier
dc.relation.ispartofseries	Accident Analysis and Prevention
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	Cities	en_US
dc.subject	Environment Design	en_US
dc.subject	Walking	en_US
dc.subject	Accident Prevention/methods	en_US
dc.subject	Accidents, Traffic/prevention & control/statistics & numerical data	en_US
dc.subject	Adolescent	en_US
dc.subject	Adult	en_US
dc.subject	Aged	en_US
dc.subject	Aged, 80 and over	en_US
dc.subject	Built environment	en_US
dc.subject	Case-Control Studies	en_US
dc.subject	Child	en_US
dc.subject	Child, Preschool	en_US
dc.subject	Female	en_US
dc.subject	Humans	en_US
dc.subject	Logistic Models	en_US
dc.subject	Male	en_US
dc.subject	Middle Aged	en_US
dc.subject	Pedestrian signals	en_US
dc.subject	Pedestrian-motor vehicle collisions	en_US
dc.subject	Pedestrians	en_US
dc.subject	Peru	en_US
dc.subject	Risk Assessment	en_US
dc.subject	Risk Factors	en_US
dc.subject	Traffic signals	en_US
dc.subject	Young Adult	en_US
dc.title	Pedestrian signalization and the risk of pedestrian-motor vehicle collisions in Lima, Peru	en_US
dc.type	info:eu-repo/semantics/article
dc.identifier.doi	https://doi.org/10.1016/j.aap.2014.04.012
dc.subject.ocde	https://purl.org/pe-repo/ocde/ford#3.02.22
dc.relation.issn	1879-2057