Abstract: An apparatus for collecting, processing and storing data related to the physical features of a highway is carried in one or two vehicles traveling over the highway to be surveyed. A computer in a vehicle receives a signal indicating the distance traveled and various inputs from the vehicle driver, an operator/passenger in the vehicle and/or one or more detectors. The computer can be connected to a display in the vehicle for visually displaying new data as it is collected and previously stored data for comparison purposes. In some instances, the data being collected requires a second vehicle and the computer is connected to the second vehicle via customized radio telemetry equipment which allows for sending signals to and receiving signals from a portion of the system located in the following vehicle.