externality

Roads, Oil Spills, and Externalities

Planners are quick to criticize roads and highway investments for the vast sums spent to build, operate and maintain them, often questioning the value of these subsidies. Recently, on a planning list-serve, these subsidies were labeled an “external cost” of automobiles, but they are not.

July 4, 2010 - Samuel Staley

News from HUD User

HUD's Office of Policy Development and Research

The Walkable City

Harvard GSD Executive Education

New Updates on PD&R Edge

HUD's Office of Policy Development and Research

Top Books

An annual review of books related to planning.

Top Websites

The best of the Internet—since 2002.

Top Apps

Planning apps for a brave new world.

Top Schools

The definitive ranking of graduate planning programs.

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.