The aim is to avoid limiting ourselves only to large-scale infrastructure measures, and instead to include all major infrastructure investments.

The tram solution would have been a street tram, without any major infrastructure investments in the city centre, such as a dedicated right-of-way.

Postgraduate research and industrial contract projects are carried out with the support of equipment and research facilities recently upgraded through major infrastructure investments.

With its crumbling bridges, collapsing schools, crowded prisons and deteriorating public buildings, New York City faces major infrastructure investments in the next several years.

But, he warned, "It does leave us with a substantial problem in the next year - as we have to make these major infrastructure investments - about where we're going to get the capital."