You're right that basic econ doesn't always hold, but in practice, it often does. In this case we actually have data on how road expansion affects transport tim

You're right that basic econ doesn't always hold, but in practice, it often does. In this case we actually have data on how road expansion affects transport times, which show that transport times slightly drop (as econ 101 predicts). https://www.thecgo.org/wp-content/uploads/2020/10/Can-We-Build-Our-Way-Out-of-Urban-Traffic-Congestion.pdf https://www.thecgo.org/wp-content/uploads/2020/10/Can-We-Bui... (Pages 8-10)