We examine portage sites in the U.S. South, Mid-Atlantic, and Midwest, including those on the fall line, a geomorphologic feature in the southeastern U.S. marking the final rapids on rivers before the ocean. Historically, waterborne transport of goods required portage around the falls at these...

This paper estimates the impacts of road improvements on local employment and specialization in Mexico for 1986-2014, through changes in access to domestic markets and travel costs to ports and the U.S. border. Instrumenting for road placement endogeneity and addressing the recursion problem in...

Cover -- Title -- Copyright -- Contents -- List of photographs -- List of figures -- Notes on contributors -- Preface -- Chapter 1 Transportation and geography -- CONCEPTS: 1 What is transport geography? -- 2 Transportation and space -- 3 Transportation and commercial geography -- 4 The...