But even this example is a ban on a specific action: changing lanes without using a legally defined indicator with a specific amount of display time.
The equivalent would be if the law simply said, "don't change lanes unsafely" but didn't define it much beyond that, and left it to law enforcement and judges to decide, so anytime someone changed lanes "unsafely" there's now extremely unknown legal risk.
The equivalent would be if the law simply said, "don't change lanes unsafely" but didn't define it much beyond that, and left it to law enforcement and judges to decide, so anytime someone changed lanes "unsafely" there's now extremely unknown legal risk.