An additional SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. More that is provided in exceptional situations for sightingThe process of evaluating the effectiveness of an installed Signal or Element by means of on-site observation of Visibility and Readability. More
reasons. It is located in the same transverse plane as the primary signalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. More
and displays identical Main Aspects.