Improving Transportation

I think that if a person were to come up with a way to improve transportation it would make a more significant impact than almost any other area of advancement. Multiply the amount of time saved by the amount of people it would affect, astronomical improvement in world efficiency. As a result we should have more people spending time thinking of ways to improve transportation on a fundamental level, like improving the four-way-stop. I almost want to spend the rest of my life in this pursuit, but it is not a topic I am interested in at all.