Till we learn to drive responsibly and be aware of our environment as a matter of course, these accidents will continue to happen.
RIP.
http://www.washingtonpost.com/blogs/wonkblog/wp/2013/03/05/c...
https://en.wikipedia.org/wiki/General_Motors_streetcar_consp...
The executive summary is this: car companies took advantage of stupid laws to destroy almost all American streetcar systems.
The sooner we undo that damage, the better. Cars make a lot of sense in rural areas and for a few very niche uses in suburban and urban areas, but they are a dangerous, polluting, and inefficient way for people to commute to work.
I think it is feasible..certainly not in all cities and maybe not in any established cities..but some small cities could implement such a solution. That or entirely new cities could be created with this design.
Just require cars to be parked when entering city limits and traded for a golf cart or Segway or something of the sort. The boundaries could be expanded as the city grows if the idea was popular..
You'd basically just be building a car-less retirement community and hope that young people opt into it.
"5 Whys" is great, but expecting a solution to everything that happens is unreasonable; at a certain point we just have to say "shit happens" instead of incrementally covering the world in bubblewrap.
Like it or not, cars are the only way people can get from place with reasonable costs of living to place where it is reasonable to situate offices/industry buildings in numbers and with speed that is required by modern economy.
I personally think the world would be a much better place if cars were relegated to intercity travel and walking/biking/public transit were the only means of intracity movement. The world would be cleaner and in all likelihood much healthier, and needless accidents like this would be avoided.
RIP.