3 ms·

I would take in to account the hard stop. A modern car have deformation zones and angles for you to basically slide along - you will never get the impact of th

I would take in to account the hard stop. A modern car have deformation zones and angles for you to basically slide along - you will never get the impact of that full mass. A bike, well, you will come to a hard stop and it’s got metal rods sticking out here and there. Getting hit by a bicycle at high speed is worse than what you’d expect, at least according to my personal experiences.

veddox 7y ago
Deformation zones are designed to protect the car's occupants in the event of a collision with a tree. They are not designed to protect a pedestrian. (Although some modern cars are beginning to have proximity sensors that can launch an automatic emergency brake. That would help the pedestrian. The deformation zone certainly doesn't.) None of which is meant to imply that being hit by a speeding bike is harmless, of course.
- lazyjones 7y ago
  > Deformation zones are designed to protect the car's occupants in the event of a collision with a tree. They are not designed to protect a pedestrian. Nonsense, all modern cars have deformation zones specifically for protecting pedestrians during collisions. All modern crash tests by EuroNCAP etc. have tests for such impacts and current results speak volumes for the improvements in this area. https://www.euroncap.com/en/vehicle-safety/the-ratings-explained/vulnerable-road-user-vru-protection/head-impact/ https://www.euroncap.com/en/vehicle-safety/the-ratings-expla... Here's the ratings for the Tesla Model 3 vs. pedestrians for example: https://cdn.euroncap.com/media/54117/pedestriancrashimage.png https://cdn.euroncap.com/media/54117/pedestriancrashimage.pn... You can see clearly the impact of the very soft bumpers designed specifically for such crashes.
- jordanbeiber 7y ago
  I seem to find several papers and books discussing pedestrian saftey in regards to bumper, hood/bonnet design and crumple zones. I’m no expert by any means, but I’m certain though that pedestrian safety is considered when it comes to car design. Having a crumple zone that absorb energy seems like it would work in favor of someone getting hit as well?
adrianN 7y ago
About 80% of the cyclist+bike combination is made of more or less squishy flesh.
himinlomax 7y ago
> A modern car have deformation zones and angles for you to basically slide along - That protects the people in the car, not those outside. Being hit by those deformation zones _will_ hurt. There is one thing that makes modern cars less dangerous to pedestrians, and it's that when someone is hit by a car they are more likely to roll over the hood than under the wheel. HOWEVER this is only the case for sedans, and definitely NOT for SUVs. Now look at the proportion of SUVs in your area.

veddox 7y ago

Deformation zones are designed to protect the car's occupants in the event of a collision with a tree. They are not designed to protect a pedestrian. (Although some modern cars are beginning to have proximity sensors that can launch an automatic emergency brake. That would help the pedestrian. The deformation zone certainly doesn't.) None of which is meant to imply that being hit by a speeding bike is harmless, of course.

lazyjones 7y ago
> Deformation zones are designed to protect the car's occupants in the event of a collision with a tree. They are not designed to protect a pedestrian. Nonsense, all modern cars have deformation zones specifically for protecting pedestrians during collisions. All modern crash tests by EuroNCAP etc. have tests for such impacts and current results speak volumes for the improvements in this area. https://www.euroncap.com/en/vehicle-safety/the-ratings-explained/vulnerable-road-user-vru-protection/head-impact/ https://www.euroncap.com/en/vehicle-safety/the-ratings-expla... Here's the ratings for the Tesla Model 3 vs. pedestrians for example: https://cdn.euroncap.com/media/54117/pedestriancrashimage.png https://cdn.euroncap.com/media/54117/pedestriancrashimage.pn... You can see clearly the impact of the very soft bumpers designed specifically for such crashes.
jordanbeiber 7y ago
I seem to find several papers and books discussing pedestrian saftey in regards to bumper, hood/bonnet design and crumple zones. I’m no expert by any means, but I’m certain though that pedestrian safety is considered when it comes to car design. Having a crumple zone that absorb energy seems like it would work in favor of someone getting hit as well?

adrianN 7y ago

About 80% of the cyclist+bike combination is made of more or less squishy flesh.

himinlomax 7y ago

> A modern car have deformation zones and angles for you to basically slide along - That protects the people in the car, not those outside. Being hit by those deformation zones _will_ hurt. There is one thing that makes modern cars less dangerous to pedestrians, and it's that when someone is hit by a car they are more likely to roll over the hood than under the wheel. HOWEVER this is only the case for sedans, and definitely NOT for SUVs. Now look at the proportion of SUVs in your area.