Paved Over: How Infrastructure Decisions from the Past Shape Our Ability to Improve Systems in the Future: Phoenix Metro

This report examines how historical transportation and land-use decisions created long-term path dependency in the Phoenix metropolitan area. Tracing development from the 1887 streetcar era to contemporary light rail and passenger rail debates, the study argues that freeway expansion, zoning laws, parking minimums, and political institutions entrenched automobile dependence while constraining transit alternatives. The analysis highlights key turning points, including the collapse of the trolley network, Proposition 300, the failure of ValTrans, and the removal of intercity rail service. Although recent transit investments and transit-oriented development indicate changing public attitudes, persistent legislative and institutional barriers continue limiting regional rail reform.