Transport of New Jersey (TNJ), earlier Public Service Transportation and then Public Service Coordinated Transport, was a street railway and bus company in the U.S. state of New Jersey from 1917 to 1980, when NJ Transit took over their operations. It was owned by the Public Service Corporation, now the Public Service Electric and Gas Company.
The Public Service Railway operated most of the trolley lines in New Jersey by the early 20th century. Public Service lines stretched from northeast New Jersey to Trenton, and then south to Camden and its suburbs. Major parts of the system were:
Public Service Transportation was formed in 1917 as a bus-operating subsidiary of the Public Service Corporation, supplementing the Public Service Railway's trolley lines. In 1928, the operations of the two companies were merged to form Public Service Coordinated Transport. Over time, Public Service bustituted most routes.
The name was changed to Transport of New Jersey in 1971, and the new New Jersey Transit Corporation took over their operations in 1980. Many of former Public Service/TNJ bus routes are still run by NJ Transit and even use the same number.
Following bustitution, the only streetcar route still in operation was the #7 line, in the form of the Newark City Subway. At the turn of the 21st century, the line was upgraded to operate new modern light rail cars, and was extended northward into Bloomfield. The system was renamed the Newark Light Rail. Additionally, a portion of an old spur tunnel to the abandoned Cedar Street Subway, another Public Service trolley conduit, has been rehabilitated and use to connect a second light rail line, which opened for service in 2006.