The horizontal distance of a SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. More or Element from the running rails at a
specific location on the track and the vertical position of a SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. More above
railhead level. A combination of Height and Offset of the SignalA visual display device which conveys instructions or provides prior warning of instructions regarding the driver’s authority to proceed. More or
Element. The lateral position of an Element is the position of the centre of
its front surface.