This leaflet provides advice on the use of portable traffic signals at road and street works. Detailed advice is already given on the design and use of these, primarily in: * An Introduction to the Use of Portable Vehicular Signals ('the Pink Book'); * Safety at Street Works and Road Works — A Code of Practice ('the Red Book'); and * Traffic Signs Manual Chapter 8 ('Chapter 8'). This leaflet is designed to complement these documents by providing a summary of the main requirements. It does not cover portable signal-controlled pedestrian facilities. For advice on these, please see Traffic Advisory Leaflet 3/11: Signal-controlled pedestrian facilities at portable traffic signals. Portable traffic signals might be required as a consequence of road works, or street works. They should not be confused with temporary traffic light signals, which are permanent signals mounted in a temporary fashion. (Author/publisher)
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