That only appears to be the best option if you specify all trips to be made via private automobile. Road bandwidth is more efficient on bike or bus, but people will default to a car if the road is well suited and there is parking at the destination. It&#x27;s not that the road is useless, it&#x27;s that it perpetuates demand for driving and so can&#x27;t solve congestion except by brute force saturation.<p>It&#x27;s one of the big shifts in planning thought to get away from a simple engineering problem of moving more cars faster and try to integrate different modes and give land use a more careful impact assessment.