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> I doubt that? If a bollard stops a car which would have caused an emergency that is often reason enough for an emergency response in itself. It doesn’t change the number of emergency calls, just changes the form of the emergency.

A somewhat common automotive accident in NYC is one where a driver falls asleep or unconscious at the wheel, causing (or nearly causing) a mass casualty event on a sidewalk. These kinds of tragedies can happen at low speeds, since the car rolls forwards silently over the curb and hits pedestrians or cyclists from behind. Bollards would stop this, just like they would stop cyclists from being backed into by trucks in bike lanes, and pedestrians from being sideswept on non-daylit corners, etc.

Of course, these are contrived examples. But the larger phenomenon holds: a single driver injured after collision with a bollard requires fewer emergency resources than a driver plus pedestrians injured after collision with a building.

I'll point out again: other cities have solutions for this that clearly work without impeding emergency response. Compare London's emergency response times[1] to NYC's[2].

[1]: https://www.london.gov.uk/who-we-are/what-london-assembly-do...

[2]: https://www.nyc.gov/site/911reporting/reports/end-to-end-res...




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