Pedestrian Signalization and the Risk of Pedestrian-Motor Vehicle Collisions in Lima, Peru

Details

• Personal Author:
  Boyle LN ; Ebel BE ; Johnston BD ; Koepsell TD ; Miranda JJ ; Quistberg DA
• Description:
  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. Description provided by NIOSH
• Subjects:
  • Metals
  • Mining
  • Occupational Health
  • Safety
• Keywords:
  • Motor vehicles
  • Accidents
  • Accident analysis
  • Fatalities
  • Automobile safety
  • Signaling systems
  • Signal devices
  • Author Keywords: Pedestrians
  • Pedestrian signals
  • Traffic signals
  More +
• ISSN:
  0001-4575
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 10 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  273-281
• Volume:
  70
• NIOSHTIC Number:
  nn:20057129
• Citation:
  Accid Anal Prev 2014 Sep; 70:273-281
• Contact Point Address:
  D. Alex Quistberg, Harborview Injury Prevention & Research Center, 325 Ninth Ave, Box 359660, Seattle, WA 98104-2499
• Email:
  aquistbe@uw.edu
• Federal Fiscal Year:
  2014
• Performing Organization:
  University of Washington
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Accident Analysis and Prevention
• End Date:
  20250630
• Download URL:
  https://stacks.cdc.gov/view/cdc/214573/cdc_214573_DS1.pdf
• File Type:
  [PDF - 304.73 KB]
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:3b210369713803a5f7b3e992e2f9a49a32ea82f585612b6d153d1cc1834ae63d98dcd07d865438db77730b06e82dc7fdf260cda0f5e2bf259d3a4268eaebc669