One hazard of Fall riding 'round here has to do with back-to-school, the towns re-paint all the crosswalks, sometimes with a solid, 4-foot wide band of paint all the way across the road, talk about slippery. My town has a hard-working bicycle committee that works on road safety issues, for one thing, the crosswalks are striped in foot-wide bands running in the direction of travel, so you can pick an unpainted line through the crosswalk most of the time. Of course, cornering through those alternating bands might mean sliding on the paint, getting traction on the unpainted part, then high-siding, not good ...
Could be worse. In Seattle the city has a process where folks can request to paint murals on certain intersections. Talk about a hazzard!