I really do not see a practical use for this application. I think it is safe to say that if you are in any large city, there will be a lot of traffic especially before and after normal work hours. They might as well be monitoring the snow flakes in Antarctica. We know there is a lot of snow there, we just want to see it.
I think the only thing this application will do is encourage people to use it while driving so they can see their own car.
Sorry, it is just my opinion.