The Mid-America Regional Council (MARC) has undertaken a multi-decade planning effort to help coordinate new growth in an urban context of changing demographic and economic patterns in the Kansas City Metro Area. Retrofit 40 was an eight-week summer studio course led by Assistant Professors Blake Belanger and Howard Hahn, and was comprised of seventeen landscape architecture students including non-baccalaureate masterÕs degree students entering their fourth year and post-baccalaureate masterÕs degree students entering their second year of study. As an academic research and design inquiry, the studio chose to approach dilemmas and opportunities of the corridor from a visionary perspective with a planning horizon of 2040 and beyond. Recognizing the challenges of current economic conditions, the studio also proposed progressive strategies to catalyze short-term interventions. This book documents the research, design, and results of Retrofit 40.