Work is under way to replace the roof of the ailing underground Grand Central Train Shed and the aging Park Avenue Viaduct.

Officials say the project will improve the "cramped" Manhattan train station and add office space, housing and public areas.

Manhattan's Midtown West will encompass $51B of this spending; many of the projects the governor mentioned have been under way.

Long Island Rail Road’s $2.6-billion expansion features an unusually intense outreach program and a jacking method from Europe