Overview of how signals function, Amtrak's involvement in signal maintenance, and their impact on NJ TRANSIT services. 
Understanding Railway Signals and Their Impact on NJ TRANSIT Operations

The Hudson River Tunnels are a cornerstone of regional transportation infrastructure, connecting New Jersey with New York City and beyond. 
Exploring the History and Operational Challenges of the Hudson River Tunnels

NJ TRANSIT employs two AquaTrack machines, which are high-pressure power washing systems that effectively eliminate leaves and oily residue from the tracks. 
AquaTrack

NJ TRANSIT and Amtrak are replacing the century-old Portal Bridge over the Hackensack River in New Jersey with a higher bridge that will not have to open and close for river traffic.
Portal North Bridge

The Ice Patrol is not an easy job, as it involves working in cold, dark, and wet conditions, sometimes for hours at a time.  
Ice Patrol