Seattle, and most US cities, are full of paintless crosswalks.
You know they are crosswalks because there are ramps installed on the sidewalks with the typical dotted/yellow covers to help blind people.
However, drivers have a hard time seeing the ramp, not to mentioned if there are parked cars before the crosswalk, so painting that zebra crossing is vital if you intend drivers to stop when there are people crossing.
I have personally seen drivers honking the horn at pedestrians using paintless crosswalks, and a couple of almost accidents.
So please, US departments of transportation and urban planners, could we make sure pedestrians won’t be run over by cars by actually making crosswalks visible to drivers?, please.

trafficnightmare.net

What happens every day at this I-5 downtown Seattle highway exit?.
Mostly nothing since the highway gets clogged with cars trying to go to the office so they move slowly.

But outside the peak hours it turns into a trap: an almost empty highway gets you into a short tunnel with a 90 degree turn, no-visibility downtown exit, this is the result:

There are already plenty of signs telling drivers to slow down, but here are some possible solutions that may help: speed bumps to make sure distracted drivers lower their speed, a traffic light before entering the tunnel that stays red and only goes green when it detects the car has actually stopped, permanently closing the exit since it’s almost impossible to give more visibility.

trafficnightmare.net