Raritan River is associated with which transportation feature?

The Raritan River is associated with "interlocking" due to its function within the railway network, particularly related to signal control and track management in transportation systems. Interlockings are crucial in areas where multiple tracks and signals meet, allowing trains to transfer from one track to another safely while coordinating movements to prevent collisions. The Raritan River, as a geographical feature, may necessitate specialized interlocking systems to manage train traffic effectively across its nearby rail lines. This ensures that trains can navigate through complex junctions or track changes in a safe and efficient manner, making it a vital element in the operation of the rail system in that region.

The other options related to barrier, signal, and station highlight different aspects of railway infrastructure but do not directly relate to the Raritan River's role. Barriers are typically used to prevent unauthorized access at crossings, signals are for indicating train movements, and stations are designated places for boarding and alighting trains. While these features are essential in rail transport, they do not specifically connect to the geographical implications of the Raritan River in interplay with railway operations.