11. Two signal boxes one at each end of the station were closed and new colour light signals provided. 12. While now the standard colour light signal in the Britain, these have not been widely adopted outside of the UK 13. The "'signal head "'is the portion of a colour light signal which displays the aspects. 14. A basic double light colour light signal consists of two multiple lamp colour light signal heads, one above the other. 15. A basic double light colour light signal consists of two multiple lamp colour light signal heads, one above the other. 16. Between Wendlingen and Kirchheim, the line has colour light signals and is controlled from two interlockings in Wendlingen and Kirchheim. 17. The majority of early single light colour light signals had either been replaced or retrofitted with red marker lights, by 2000. 18. Some Upper Quadrant Semaphore signals were adapted as Single Light Colour Light signals giving the same colour indications while retaining the arm. 19. The remote-controlled points were replaced by resetting points, supported by train-controlled entry and distant colour light signals . 20. There are colour light signals located at Tywyn Wharf, operated from the Control Office and disc signals controlled from the ground frame.
