figure 16-1) or contra-flow (see figure 16-2). Contraflow lanes apply for 24 hours, but with-flow lanes may operate for shorter periods, e.g. morning and evening peak hours.
16.5 With-flow mandatory cycle lanes are bounded by a 150 mm continuous white line to diagram 1049. The marking should be interrupted for the length of any bus stop marked by diagram 1025.1. At side road junctions the mandatory lane should change to an advisory one bordered by a 150 mm wide line to diagram 1004 or 1004.1; an additional cycle symbol to diagram 1057 should be placed in the lane in front of drivers emerging from the side road. The marking to diagram 1049 may be continued across private driveways; the traffic regulation order should provide exemption for access.
16.6 Regulation 4 requires the start of a cycle lane to be marked with a broken line to diagram 1009 (600 mm mark, 300 mm gap). If the speed limit is 40 mph or less, the 150 mm wide line is used, otherwise it should be 200 mm wide. As other traffic must not enter a mandatory cycle lane, adequate warning of the approach should be given by ensuring that the inclination of this line is no sharper than 1:10. Cycle symbol markings (diagram 1057) must be placed at the start of the lane and should be repeated after every break, as well as at suitable intervals on long uninterrupted lengths. A sign to diagram 958.1 should be used in advance of a mandatory cycle lane, together with an arrow to diagram 1014, and signs to diagram 959.1 must be used at intervals along its length.
16.7 A traffic regulation order will be required to prohibit other vehicles from using the lane (except for emergency and statutory purposes). The order should also prohibit waiting and loading during the operational hours of the lane. Yellow "no waiting" lines and kerb “no loading” marks are not necessary, unless it is required to prohibit waiting or loading for some period outside the operational hours of the cycle lane. In practice, many authorities nevertheless provide yellow lines and loading marks, even when the restrictions do not apply outside these hours, to encourage better compliance. Upright signs detailing the times of waiting and loading restrictions must then also be used.
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