Road surface measurement apparatus; computer hardware and software systems for tracking, monitoring, diagnosing and analyzing of road surface and pavement conditions; hardware interface which links the computer to the in-vehicle equipment; roughness instruments to measure road roughness; video cameras with character overplay device to measure the right of way and pavement; transverse profile loggers to measure across the road and rutting; gyroscope for bearing/pitch/roll; accelerometers for gradient measurements; dust meters for dust measurements on unsealed roads; manual longitudinal profile loggers for roughness measurements/calibration; hand held data loggers for manual surveys and traffic counts.