Eli5: In movies, why are the streets always wet when showing driving scenes?

Question

It always looks like it just rained when there are car chases or scenes that involve outside car shots. Is there a reason for this in filming or for the shot to look clean?

In: Other

Answer 1

I was an extra on the set of Pearl Harbor. There was a water truck on the set, and I asked one of the AD’s if that was part of some fire safety or something. He said no, the water truck hoses down the ground before the shoot. After asking him why, he said it makes the shot look better and more dynamic.

That’s it. Just looks better in the shot.