Thinking about how to fix traffic congestion during rush hour in cities. Is it possible to have a 1-way street that switches direction? If so, instead of having alternating 1-way streets, we could have groups of 3 streets leading into and out of a city. In the morning, 2 of 3 streets point toward the city for people going to work. In the evening, 2 of 3 streets point away from the city for people going home.
Other than this being potentially dangerous because of people getting confused, could this be a viable solution? It might require more self-driving cars to really work well.