“Killed by A Traffic Engineer” by Wes Marshall

Written by

in

,
  • Cars have killed more people in the US than all our wars combined
  • Auto accidents are the leading cause of death until age 50 and older
  • ‘Safety First’ is a lie
  • It is always the drivers’ fault and never the engineers’
  • Most “standards” are actually “guides” that engineers are supposed to override with good judgement
  • The statement was patented 90 years before they were required
  • Standards don’t have safety in mind, they focus on efficieny
  • Focusing on education shifts blame while seeming to be doing something
  • Driver’s Education courses is not very effective and is mostly a money grab
  • We remove crosswalks that are not safe instead of changing the roads around them
    • Federal rules hold cities liable for pedestrian strikes within the crosswalk
    • (This is why Wailuku removed the crosswalk outside the bar)
  • Why do we let cars drive so fast?
    • (Change the road design to make it more difficult!)
  • “Better safety is fine as long as it does not mean fewer cars”
  • “Road safety” is always “comparative” against similar intersections
  • Metrics usually start with “drive time” or “miles traveled” rarely “capacity” and never “trips avoided (through proximity or alternate transit)”
  • We assume accident severities happen in escalations (for so many fender-benders there will be a severe accident, for so many severe accidents there are so many fatalities) so if you reduce fender-benders then you reduce everything worse
  • “Exposure” is important; If no one is walking on the street, there will be no pedestrian fatalities
  • Retro-reflectivity does not notably safety outcomes
    • The goal is to “increase roadway visibility”, not improve safety, so we repaint the lines anyway
  • “If it’s predictable, its preventable.”
  • We tell people it is safe to walk at the same time we tell cars they can turn
  • Active (drivers being dumb) vs latent (the system lets the driver be dumb) errors
  • Technology morphs our potential safety issues: human expect to be able to stop paying attention
  • Hands are faster and more precise than feet… so why are there not hand brakes?
  • 20-year traffic projections attempt to build for the future
  • Hindsight is not foresight
    • (This!)
  • There is a theory that “speed spread” (the differences between different vehicles) matters, not the actual speeds
    • (The good ole’ “driving slower than everyone else is a road hazard”… even if everyone else is going double the speed limit)
  • Speed studies inevitably push speeds up
  • It always comes back to capacity
  • Highways were weaponized to literally help “clear slums”
  • Many politicians use highways to shape their cities
  • GIS is a spatial relationship analysis tool
  • Fear of liability is not a very valid concern
  • The media frames situations without mentioning the driver
    • “A car hit a pedestrian” (no driver mentioned)
    • “Man hits store clerk” (assailant mentioned)
  • Maintaining a certain “level of service” (aka “capacity over time”) becomes the major choke point
  • We accommodate kids instead of planning for them
  • Transit is safer but we always tout it as being more efficient instead
  • Transportation should be about connecting people goods and services efficiently
  • Reducing transportation should be the goal
  • Changing our thinking is more important than throwing more money at the problem

Comments

Leave a Reply