Vehicle-mounted mobile traffic-speed retroreflectometer that measures pavement marking retroreflectivity (night RL) across full lane width (left, center, right) and lane symbols in a single front-mounted pass, certified to CEN 30m geometry and ASTM E1710/CEN EN 1436. Provides roads authorities and road maintenance contractors with integrated mapping/video software and one-pass data (including RPM presence), doubling productivity and reducing survey time, distance travelled and man-hours for safe, accurate, economical road network assessment.