Why does Pittsburgh get congested? Because there is accidents, they happen because people speed. If we stop the speed issues, then we can solve many things. But we need to put a system in all vehicles as part of its design, so they can't crash. Sensors are good, but all vehicles are heavy. Why not have light weight vehicles that can use 100% of there drive transmission? Stop creating vehicles that can operate above the state posted speeds. Why do we do this. It just creates issues. What is the point of having acceleration pad in a vehicle that you step on to go faster, if it is not made to go down to the floor. If you do press it to the floor you can cause death and receive tickets as a result . Do we need this? I don't, I'd rather get to my destination safely and in a fun way.