Abstract: A computer generates historical time and velocity data for vehicles based on data from sensor(s) observing the vehicles. The computer determines, based on the historical time and velocity data, a control policy that controls movement of the vehicles. The control policy is represented as a weighted combination of a set of predefined policies. Determining the control policy comprises calculating weights or parameters for a weighted combination of the set of predefined policies that minimizes a residual error term. The residual error term is computed based on a difference between the historical time and velocity data and predicted time and velocity data associated with the weighted combination of the set of predefined policies. The computer determines an action plan based on the determined nonlinear control policy. The computer transmits, to a machine, a control signal causing the machine to perform or simulate at least a part of the determined action plan.