In the U.S. state of New Jersey, the New Jersey Department of Transportation (NJDOT) maintains a system of state highways. Every significant section of roadway maintained by the state is assigned a number, officially State Highway Route X but commonly called Route X by the NJDOT and the general public. Interstate Highways and U.S. Highways are included in the system, and are typically also called Route X, as there is no duplication of numbers between the systems. State Routes are signed with the standard circular highway shield. The majority of Routes are maintained by the state, but occasionally, for the sake of continuity, a local road is designated and signed as part of a Route. Additionally, all toll roads in New Jersey are assigned internal numbers by the NJDOT — the New Jersey Turnpi