[vkou]

The only way to make cars hitting pedestrians safer for pedestrians is making cars slower, which is a non-starter.

[tshaddox]

There are however ways to make cars hit pedestrians less.

[myshpa]

1] less cars

2] get cars our of cities (see Amsterdam, for example)

3] smaller cars

Smaller cars hit your legs and throw you over the car.

SUVs/trucks hit you in the chest, and drag you under the car.

[Ekaros]

Ban pedestrians. Also an realistic and effective option.

[ethanbond]

With terrible externalities, sure.