With the advent of self-driving vehicles, we also are embracing enhanced congestion avoidance. When we worry about an extra volume of vehicles on the roadways we must also take into account advanced congestion avoidance routing helping to mitigate that impact. I'm not suggesting that it's a non-issue, but we may not know the true effect for now. The real problems would come from inaccurate road mapping data causing poor route planning. Also, nobody looks forward to their suburb turned into a secondary thoroughfare that suddenly all the non-residents would use.