Fair enough. The article may not have sufficiently established such a thing. But enforcement when it works is likely to only work when enforcement is frequent enough to create an expectation of getting caught. Given that this would require a significant increase in manpower to truly be effective I'm not sure it's sustainable.

I suppose you could find a way to automate it similar to red light cameras but even those have been shown to be rather ineffective at actually lowering the incidence of violations so I'm not sure anything less than the presence of a police vehicle with flashing lights that pulls up behind you would have an effect.