1. A method for operating a host vehicle on a roadway, comprising: detecting, using a sensor system in the host vehicle, an object in an external environment of the host vehicle; determining a classification for the object; if the determined classification for the object is a vehicle in the external environment surrounding the host vehicle, performing the following: determining a type of the surrounding vehicle; obtaining one or more current driving characteristics of the surrounding vehicle as it travels on the roadway using the sensor system; retrieving, from a first database, one or more predetermined vehicle characteristics for the determined type, the one or more predetermined vehicle characteristics indicative of at least one driving behavior associated with a plurality of vehicles having the determined type; predicting a trajectory of the surrounding vehicle on the roadway based on at least one of the one or more current driving characteristics or the one or more predetermined vehicle characteristics; comparing the one or more predetermined vehicle characteristics for the surrounding vehicle with the one or more current driving characteristics; and updating the first database based on the comparison.