The Metropolitan Transportation Authority includes the NYC subway, Metro North, LIRR, and Amtrack.
MTA Budgets and Financial Statements (current and archived)
Port Authority Studies and Report
The Port Authority of New York & New Jersey conceives, builds, operates and maintains facilities including airports, marine terminals and ports, the PATH rail transit system, six tunnels and bridges between New York and New Jersey, the Port Authority Bus Terminal in Manhattan, and the World Trade Center.
Selected publications on the transit system and investigations in the New York City area.