Dual Line Mobile Retroreflectometers like the RetroTek-M and the RetroTek-MU are needed to measure the RL values and absence / presence of road markings. Dual Line retroreflectometer means that road markings on both sides of the car can be measured at the same time.
Major changes are on the horizon for the road condition surveys. Over 70% of new cars are predicted to be equipped with lane-departure warning systems by 2023. These require good-quality road markings, which will increase the demand for them to be properly maintained. In order to do this road authorities will be dependent on quality [...]