The Garden State Parkway (GSP) is a limited-access toll parkway that stretches the length of New Jersey from the state’s southernmost tip at Cape May to the New York line at Montvale. Its name refers to New Jersey’s nickname, the “Garden State”. The parkway’s official, but unsigned, designation is Route 444. At its north end, the road becomes the Garden State Parkway Connector, a component of the New York State Thruway system that connects to the Thruway mainline in Ramapo. At a length of 172. 4 miles (277. 5 km), the parkway is the longest highway in the state. Most of the highway has a posted speed limit of 65 mph (105 km/h). The parkway is primarily for passenger vehicle use; trucks weighing over 10,000 pounds (4,500 kg) are prohibited north of exit 105.