3 ms·
Next to roads are often things like bridge pillars and those things are also very heavy and not very soft.
by allendoerfer 6y ago
Next to roads are often things like bridge pillars and those things are also very heavy and not very soft.
- elihu 6y agoThat is true, but designing a car to be survivable on impact with a strong, immovable object is a different kind of problem than designing it to be survivable in a collision with a moving 3,000 pound vehicle. In the former case, you just have to have enough crush zone to spread out the impact and the weight of your own vehicle doesn't matter much as long as there's cushioning and appropriate safety features (seatbelts and airbags). In the latter case, if you're a lot lighter than the other car you get knocked around, and if you get squeezed between a heavy car and an immovable object, you get crushed.