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Working Paper
Multimodal Transport Networks
We examine the economic and environmental impacts of improvements and disruptions in multimodal transport networks. Our quantitative spatial equilibrium model incorporates routing over multiple modes and congestion at intermodal terminals. We estimate a modal substitution elasticity with highway and rail data and a terminal congestion elasticity with vessel-positioning data. Calibrated to the US freight network, our model identifies key bottlenecks and quantifies $300 million–$700 million in additional real GDP gains from intermodal terminal improvements. These gains are 2.5 times higher ...