Abstract: Methods and systems for providing driving assistance in a vehicle. In one embodiment, a method includes: determining, by a processor, a trajectory of the vehicle along a roadway; determining, by the processor, a confidence score based on a predicted lateral acceleration and an actual lateral acceleration at a point along the trajectory; determining, by the processor, longitudinal velocity data based on the confidence score; and generating, by the processor, control signals to vehicle actuators to control the vehicle based on the longitudinal velocity data.