According to induced demand, the optimal highway would be one that is the smallest. Meaning 1 lane would be an optimal highway, but why is every country expanding their highways and by default they have more than 2-3 lanes.
In: 0
Induced demand is not the simple, linear phenomenon that you suggest. Yes, in some situations, building a new road might cause people to drive who otherwise wouldn’t, increasing traffic. Conversely, removing a road may cause people to stay home who otherwise would be driving, thereby reducing traffic. But there is some minimum number of people who are going to drive regardless of how many roads there are, and if the infrastructure is insufficient to service this number of people then you are going to increase traffic by removing roads/lanes.
Latest Answers