Impact of Transport Infrastructure Investment on Regional Development Decisions to invest in transport infrastructure projects require careful deliberation. Governments need evaluation methods to ensure that their scarce resources are allocated in a way that maximises their net return to society. How can the efficiency of allocating funds for transport infrastructure be improved Is the widely used approach of cost benefit analysis appropriate Does transport infrastructure investment have wider impacts on regional development which need to be taken into account in determining infrastructure investment priorities Do we find evidence of such impacts in evaluatio