… Electrical signalling, safety or traffic control equipment for railways, tramways, roads, inland waterways, parking facilities, port installations or airfields (other than those of …
Explanatory notes
… railways, tramways, roads, inland waterways, parking facilities, port installations or airfields (other than those of … of the actual signals (usually a number of coloured lights, or moving arms or discs, mounted on a post or in a … the passage of a number of trains over the same sections of line. The latter type includes automatic section signalling …