The following are examples of these types:
- Motorized wheelchairs
- Gas buggies
- Golf carts
And would be the first designs to be focused on. Both the motorized wheelchair and golf cart can be driven on wide open spaces. Gas buggies and go-karts may only be used on the appropriate paths. However if we take those vehicles or units, and redesign them with your health in mind. Then you won't only travel in a fun and enjoyable way, but you can also increase your physical health, emotional health, and self-esteem at the same time!
This redirection of traveling then results in less accidents. Less accidents means more money to be used on what needs to be focused on. And fewer careless driving incidents results in the safety of the drivers themselves being even better.
As I am sure you are all aware, each state has a police regulated speed limit. Going past the speed limit is both in defiance of the law, and is a blatant disrespect for the laws that will keep you safe! If I may argue the point, if you want to speed get yourself a NASCAR license through all the appropriate forms and agreements, then go to the racetrack and pedal to the metal to your hearts desire!
Secondly the shift from using gas and electrical only vehicles, to electric/"manpowered". Will allow people to physically enjoy the ride more. Not only will they be saving money, they will be enhancing their life by intelligent choices. And then those things will allow people to be free from obesity and will cause their lives to be filled with more laughter, Joy, and excitement!