The ITF has produced a series of reports and discussion papers addressing the interrelated issues of railway structure and performance; see for example Beck et al. (2013), Thompson (2013), ECMT (2007) and, Thompson (2007). The academic literature on this subject is also significant, with good...

Expanding airport capacity is difficult in large urban areas. Expansion of existing airports is usually constrained by community agreements on noise and local air pollution and by a shortage of land. Finding sufficient land, at feasible prices, to develop or relocate major airports on...