INCREASING THE OPERATIONAL TIME OF A ROAD CONSTRUCTION MACHINE

A road construction machine (1) comprises a chassis (12, 112) for moving the road construction machine (1), a primary drive (3, 103) for driving the chassis (12, 112), a primary storage device (17, 117) for supplying the primary drive (3, 103) with electrical energy or an energy medium, a material hopper (7, 107), and a material hopper insert (14, 114, 14a) for receiving installation material (EM). The material hopper insert (14, 114, 14a) is releasably mounted on the material hopper (7, 107). The material hopper insert (14, 114, 14a) has at least one secondary storage device (15, 115, 15a) for driving the chassis (12, 112) and/or for supplying the primary drive (3, 103) with electrical energy or the energy medium.