Earlier quoted context omitted.
Consistent, low-impact enforcement is better at preventing unwanted behavior than the rare and severe but also capricious enforcement performed by human police. It can also give permission for unwanted behavior. Cf. the Haifa study, where the rate of late pickups increased when daycares added a fine. One explanation is the fine turned a complex moral obligation into an ordinary financial transaction.
I grew up in Fremont, CA, which pioneered the use of red-light cameras and terrible red-light camera practices (e.g. shortening yellow light times to increase revenue and giving a cut of the fines to the companies installing cameras). I hated cameras, the idea of speed cameras felt like big brother, and the basic principal of attributing a violation to a car and not a person (and thus requiring a person to rat out th…
You create a transport system where you're mixing incompatible modes of transport and carnage is what you get. What I see is instead of placing the blame on that everyone wants to place the blame on someone anyone else based on whatever moral anxiety they have.
Consider some people are drunks, you create a system where they have to drive you get drunk drivers. Don't want a bar walking distance from your quiet suburban neighborhood, again drunk drivers. Zoning that separates businesses and stores from low density housing. Driving, accidents. Mix pedestrian, bicycle, bus and car traffic, you get carnage.
No one really wants to blame the system and spend money to fix it. So blaming other individuals is what we do.