The quality of the driver’s approach view of the SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. More as determined by
measurable, physical factors:
• relative IntensitySee Luminous Intensity. More
• colour contrast
• colour accuracy
• susceptibility to high incident light
• spatial positioningThe process of establishing the optimum Position of a proposed Signal or Element. More of SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. More
• alignment and beam width; degree of obscurationSee definition in section C4. More
• time to view
• distance from next SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. More.