Abstract: An apparatus for cutting highway rumble strips comprises a vehicle that includes a supporting framework, e.g., a framework formed from steel channels welded together and having four ground-engaging wheels, one mounted at each corner of the framework for supporting the vehicle and allowing it to move freely under its own power or to be towed down the highway. A cutter, e.g., a cutting head or cutting wheel with carbide steel cutting teeth, is supported on the framework for producing a series of spaced apart transverse cuts in the pavement as the vehicle travels, usually at a uniform speed along the shoulder of the highway. The cutter can be a toothed wheel that is rotated on an axis at its center by a drive motor, engine, or other prime mover.