The OECD identifies that investment in physical infrastructure increases long term economic output more than any other kind of physical investment. At a global level, this is demonstrated through the support from businesses for key infrastructure projects as a vehicle to stimulate economic growth. Supporting infrastructure development is often ranked by business above other direct financial business support measures.

World Bank research demonstrates that, over an extended time period, there is a causal relationship between infrastructure investment and economic growth and the Glasgow Economic Commission made six  recommendations and one area ‘For Consideration’ in relation to Transport and Connectivity, and five recommendations and two areas ‘For Consideration’ in relation to Infrastructure & Investment issues.