There is one invention I keep waiting for, and those who know me well will not be surprised to learn it's related to traffic. As a guy who spends a comparatively small amount of time in traffic, I nonetheless blame it for about 90 percent of my fears, complaints and general discontent. Here's something that would alleviate at least a small portion of my stress.
We've all found ourselves sitting at a red light at 11:30 p.m., often with a dozen other cars, at the northbound corner of an intersection where there is absolutely no traffic going east or west. Not for miles. Zilch! Nada! But because the lights are all on an automated system, the red shines at regular intervals anyway.
To this I say, "Nay! Invent some sort of a mechanism that only triggers the red light when opposing traffic develops!" Well, I don't actually say it. I think it. But I think it loudly at times when I'm sitting there, staring at the red light, trying to make it explode by sheer will.