The aim of the Dublin-Belfast Development Corridor is to link several towns and cities by various modes of communication in order to create a poly-centric mega-city region in Ireland on a scale large enough to compete with the major urban clusters of continental Europe. This volume brings together an interdisciplinary team of leading scholars and practitioners from both sides of the border to discuss the Dublin-Belfast corridor and the associated challenges of cross-border development from economic, geographic, regional studies, sociological and planning perspectives. As well as providing insight into this important project, the book also throws light on regional development more generally.