What’s the mechanism? Eg A road is accessible from 5am to 8pm. Outside those times traffic conditions change. Humans setup cones and control the flow of traffi

What’s the mechanism? Eg A road is accessible from 5am to 8pm. Outside those times traffic conditions change. Humans setup cones and control the flow of traffic. 2 lanes becomes 1 lane for all traffic. And traffic is managed so that depending on what direction you’re going, your driving against the normal flow of traffic. This is a real scenario in a moderately busy area. Times may be wrong. The road is not blocked. But you have to take direction from a person. In fact this sort of temporary traffic change is fairly common especially due to road works.