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A Guide to Applying the Safe System Approach to Transportation Planning, Design, and Operations (2025) / Chapter Skim
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Appendix E: Safe System Law Enforcement Practices
Pages 81-82

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From page 81...
... . Categories Z-scores High > 1 SD above mean Moderate < 1 and > 0 Low > −1 and < 0 Very Low < −1 SD below mean Note: SD = standard deviation round the mean score of zero (0)
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From page 82...
... Instituting or enforcing a statewide primary enforcement seat-belt-use law that would require occupants to wear seatbelts in the front and back Moderate Feasibility/ 0.204 0.426 seats and allow law enforcement officers to ticket Moderate Impact occupants for not wearing a seatbelt, without other citable traffic infractions taking place. Instituting high-visibility saturation patrols for Moderate Feasibility/ 0.157 0.287 alcohol- or drug-impaired driving.
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Key Terms

  • serious crashes
  • moderate impact
  • below mean
  • interpretive categorization
  • speed safety

  • crash reporting
  • implementing speed
  • media partners
  • infractions taking
  • motorcycle helmet

  • impact columns
  • engaging news
  • citable traffic
  • interlocks installed
  • mean score

  • traditional crash
  • feasibility impact
  • low impact
  • placing serious
  • report findings

  • alcohol ignition
  • allow law
  • news media
  • enforcement officers
  • helmet law

  • immediate administrative
  • administrative license
  • deviation round
  • safety cameras
  • traffic infractions


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