Jersey City fills the peninsula between the Hackensack River and the Hudson, directly across from Lower Manhattan, and its roads feed the tunnels to New York. The Newark Bay Extension of the Turnpike, I-78, runs across the city toward the Holland Tunnel, and NJ 139 carries traffic down from the Heights to the tunnel approach. US 1&9 runs along the west side as Tonnelle Avenue, connecting with the Pulaski Skyway toward Newark. NJ 440 follows the Hackensack River on the west side toward Bayonne, and Kennedy Boulevard is the main north-south street through the middle of the city.
The Holland Tunnel approaches are the city's main bottleneck, backing up for blocks at rush hour and on weekends, and Tonnelle Avenue and NJ 440 are heavy with trucks. Breakdowns in that traffic are hard to work around, so most repairs happen once the car is parked. Neighborhood streets are dense, with permit zones and street-cleaning rules on many blocks, and the garages downtown often have low clearances.
PATH trains run from Journal Square, Grove Street, Exchange Place and Newport into Manhattan and Newark, the Hudson-Bergen Light Rail runs along the waterfront and the west side, and ferries cross the Hudson. Many residents keep a car only for weekends, so it can sit for days between trips.
Newark Liberty International Airport is a short drive southwest, and plenty of Jersey City residents leave a car in its long-term lots while they travel.