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Related Experiment Video

Updated: Jul 10, 2026

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation
11:41

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Published on: February 1, 2020

The "unintended pedestrian" on expressways.

Gregory R Istre1, Mary McCoy, Martha Stowe

  • 1The Injury Prevention Center of Greater Dallas, 5000 Harry Hines Boulevard, Dallas, TX 36067, USA. gistre@aol.com

Traffic Injury Prevention
|November 13, 2007
PubMed
Summary

Expressways are a major site for fatal pedestrian crashes, especially for young adults. Many deaths involve "unintended pedestrians" exiting disabled vehicles, highlighting the need for improved roadside safety procedures.

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Area of Science:

  • Public Health
  • Epidemiology
  • Traffic Safety

Background:

  • Pedestrian fatalities represent a significant public health concern.
  • Understanding the specific environments and circumstances contributing to these deaths is crucial for targeted interventions.

Purpose of the Study:

  • To investigate the epidemiology of pedestrian deaths in Dallas County, Texas.
  • To compare factors contributing to pedestrian fatalities on expressways versus other roadways.

Main Methods:

  • A retrospective study of pedestrian deaths (age 15+) in Dallas County, Texas (1997-2004).
  • Data linkage included Medical Examiner's office, Fatality Analysis Reporting System (FARS), and police records.
  • Univariate and multivariate analyses were performed to identify risk factors.

Main Results:

  • Of 437 pedestrian deaths, 45% occurred on expressways, with the highest proportion among 15- to 29-year-olds (65%).
  • "Unintended pedestrians" (exited vehicle on roadway) accounted for 36% of expressway deaths vs. 11% on surface streets (OR 4.6).
  • Expressway pedestrian deaths remained strongly associated with being an "unintended pedestrian" (OR 6.2) after controlling for covariates.

Conclusions:

  • Expressways are the primary location for fatal pedestrian crashes among young adults in this urban setting.
  • "Unintended pedestrians" are a significant factor in expressway-related fatalities, particularly for younger demographics.
  • Implementing enhanced procedures for managing disabled vehicles on expressways could reduce young adult pedestrian deaths.