authorised officermeans an officer authorised by or on behalf of the Secretary of State to carry out duties on the specified roads for the time being on duty;
carriagewaysmeans the parts of the specified roads reserved for the passage of vehicles;
constablemeans any constable (as defined by the Police (Scotland) Act 1967() of, or required for the time being to serve in, a police force maintained under the said Act for the police area in which the specified roads are situated;
cyclemeans a bicycle or tricycle not being a motor vehicle;
cycle tracksmeans the parts of the specified roads reserved for the passage of cycles;
footwaysmeans the parts of the specified roads over which the public has a right of passage on foot only;
the Actmeans the Erskine Bridge Tolls Act 1968;
tollmeans the appropriate toll payable under an order for the time being in force under section 2 of the Act;
toll-boothmeans one of the toll-booths situated as described in regulation 4 of these Regulations;
vehiclemeans a mechanically-propelled vehicle intended or adapted for use on roads.