Abstract: Described herein are systems, methods, and other techniques for controlling a velocity of an implement-equipped machine. An actual position of the implement-equipped machine is estimated based on sensor data captured using the machine's sensors. A cross track error between a target position and the actual position is calculated. An actual cross track error metric is calculated based on the cross track error. The actual cross track error metric is compared to a target cross track error metric to determine a velocity adjustment, where the velocity adjustment is determined so as to reduce a difference between the actual cross track error metric and the target cross track error metric. The velocity of the implement-equipped machine is adjusted by the velocity adjustment.