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Investigating the correlation between sidewalks and pedestrian safety.

Hatem Abou-Senna1, Essam Radwan1, Ayman Mohamed2

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Pedestrian safety is a major concern, especially in Florida. This study found that roadways without sidewalks have a 1.67 times higher risk of pedestrian crashes, highlighting the importance of continuous sidewalks for public safety.

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Area of Science:

  • Transportation Engineering
  • Public Health
  • Urban Planning

Background:

  • Pedestrian safety is a growing concern in the US, with Florida having high rates of pedestrian incidents.
  • Gaps in continuous sidewalks are suspected by Florida Department of Transportation (FDOT) planners and engineers to pose threats to pedestrian safety.

Purpose of the Study:

  • To investigate the correlation between pedestrian safety and the presence or absence of sidewalks, specifically focusing on sidewalk gaps in Central Florida.
  • To analyze the impact of sidewalk continuity on pedestrian-vehicular conflicts.

Main Methods:

  • Utilized Geographic Information Systems (GIS) data and roadway characteristics inventory (RCI) data from FDOT.
  • Developed a statistical model incorporating crash data, geometric design, traffic volumes, and census data.
  • Defined sidewalk gaps as segments with missing sidewalks between existing ones.

Main Results:

  • The presence of a sidewalk significantly impacts the expected number of pedestrian crashes.
  • Roadway segments without sidewalks showed an Incident Risk Ratio (IRR) of 1.67 for pedestrian crashes compared to segments with sidewalks (95% Confidence Interval).
  • The likelihood of a pedestrian crash per mile was three times greater on roadways lacking sidewalks.

Conclusions:

  • Continuous sidewalks are a critical factor in reducing pedestrian crashes.
  • Addressing sidewalk gaps is essential for improving pedestrian safety in urban and arterial roadways.
  • Findings support the prioritization of sidewalk completion for enhanced transportation safety.