As used in P.L. 2004, c. 107(C.39:4-8.9 et seq.):
"Department" means the Department of Transportation.
"Private roads" means semipublic or private roads, streets, driveways, parkways, parking areas, or other roadways owned by a private person, corporation, or institution open to or used by the public for the purposes of vehicular travel by permission of those persons, corporations, or institutions and not as a matter of public right.
"Speed hump" means one of several traffic calming measures which use forces of vertical acceleration to discourage speeding. For purposes of this chapter, speed humps means all vertical speed deflectors, including but not limited to, speed tables, raised crosswalks, raised intersections, and modified speed humps.
"Traffic calming measure" means the combination of physical controls and community support to reduce the negative effects of motor vehicle use, alter driver behavior, and improve conditions for non-motorized users, and includes, but is not limited to, speed humps.
"Vertical speed deflector" means a raised area in the roadway pavement surface extending transversely across the travel way.
N.J.S. § 39:4-8.9