Why does water settle differently between where the wipers go and the corners of the windshield when it rains?

Question

Of course, I mean when the cars wipers aren’t working. When the car is just sitting there, the water settling in the path of the wipers settle more smeared than in the sides and corners, where it settles as droplets. Why does this happen?

EDIT: Here’s two photos showing what I’m referring to.
http://imgur.com/gallery/JOwstfb

In: Physics

Answer 1

The wipers were wiping in the path they cover. This means there is a small amount of wiper material rubbed off on the surface of the glass, as well as there being more of the various road grime or debris rubbed off on that area than would otherwise be accumulated.