Visibility Research Laboratory

TTI’s Visibility Research Laboratory, measuring 15 feet by 125 feet, is the first of its kind in a university setting. Located on the first floor of TTI’s State Headquarters and Research Building, the laboratory can be used to perform photometric and color measurements of sign sheeting, pavement markings, retroreflective raised pavement markings and other retroreflective devices. This laboratory is equipped with a four-axis photogoniometer to rotate devices to specific measurement geometries. These instruments also allow photometric characterization of vehicle lighting systems.