A machine for roadwork can include a frame, a power source, and a milling rotor operatively connected to the power source and the frame. The machine can also include means for detecting obstacles around an exterior of the machine; and means for activating an obstacle-detection response. The obstacle-detection response can adjust at least one milling parameter, change at least one sensor that the machine uses to control at least one mil ling parameter, or override at least one system on the machine to prevent the machine from automatically adjusting any milling parameters.