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… accordance with sound engineering principles. Duration of Directive As stated in section 19 of the Act, this direction …
40.939
… and Interlocking Signals 405. Clear - Proceed. 1. A high mast, single aspect signal displaying green. 2. A high mast, staggered, double aspect signal displaying green on the top, red on the bottom. 3. A high mast, inline , double aspect signal, displaying green on …
64.275