

Twelve interlockings facilitate flexibility in operation between the two tracks these and other interlockings control movements to or from freight lines such as the Chemical Coast Secondary, the Amboy Secondary, and the Southern Secondary, as well as Long Branch Yard. The line has cab signals and wayside block signals the line from Rahway to Long Branch is signaled for operation in either direction on both tracks ( NORAC Rule 261). The line is double track, except for the bridge over the Manasquan River at Brielle. Long Branch Yard, one of the main yards on the NJCL. Some electric trains terminate at South Amboy and make all stops from New York Penn Station, providing local service for the Northeast Corridor stops of Rahway, Linden, Elizabeth, and North Elizabeth during rush hours. Full hourly service operates during the peak summer season. Hourly New York to Long Branch service operates on weekends, with bi-hourly diesel shuttle service (with some extra trains) between Long Branch and Bay Head. Diesel shuttle trains between Long Branch and Bay Head meet these electric trains, although a limited number of through trains operate during weekday rush hours between Bay Head and Pennsylvania Station, utilizing dual-mode engines. Most trains operate between New York Penn Station and Long Branch, with frequent rush-hour service and hourly local off-peak service.

The line runs along the former New York & Long Branch Railroad, which was co-owned by the Central Railroad of New Jersey and the Pennsylvania Railroad. On rail system maps it is colored light blue, and its symbol is a sailboat. Operated by New Jersey Transit, the line is electrified as far south as Long Branch. The North Jersey Coast Line is a commuter rail line running from Rahway to Bay Head, New Jersey, traversing through the Jersey Shore region.
