A study of past and prospective business development around rail transit stations in the Washington DC area. Washington has one of the very few new and extensive rail transit systems in America, although expectations of transit system-induced revitalization in this area have not uniformly been met. This book develops an econometric model of local development (LOCDEV) around major public investments, applies it to the existing Washington transit system, and uses it to forecast future development levels around new stations. The book includes a user's guide to the LOCDEV model and concludes with reflections on modelling and forecasting.