@guerrillablack Traffic signs and roads are designed for cars by traffic engineers who pretend that cyclists and pedestrians don't exist.
If you really want cyclists to obey every sign and traffic law, we can. You won't like the results.
https://www.bicycling.com/rides/traffic-laws/what-happens-when-bicyclists-obey-law
@starbreaker Nearly hitting pedestrians and running red lights is basic safety. Signaling so I know where you're turning is basic safety.