By Bill Gunston
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Additional info for An Illustrated Guide to USAF the Modern US Air Force
There are no special road markings, but the signs are repeated throughout the length of the clearway End of urban clearway 55 Stopping in lay-by not allowed, except in an emergency (similar to hard shoulders on a motorway). This may not apply to the whole lay-by. The length over which stopping is prohibited will be indicated by double yellow lines. These lay-bys usually have an emergency telephone Yellow zig-zag markings outside schools, hospitals or fire, police or ambulance stations indicate the length of road where you should not stop, not even to pick up or set down children or other passengers.
There is no transverse mark on the single yellow line because the waiting restrictions do not change 43 The prohibition of waiting shown on the yellow plate applies in both directions. No loading to the left during morning and evening peak hours on the days shown. No loading to the right from morning to evening on the days shown. The white plates with arrows are placed at the changeover point. There is no transverse mark on the single yellow line because the waiting restrictions do not change. The times shown for peak periods and day-time restrictions may vary No waiting to the left during morning and evening peak hours.
Vehicles must not cross the continuous white line except in an emergency. Used on the right-hand side of a motorway, dual carriageway road or slip road 63 Arrow indicating the direction in which to pass hatched markings and double white lines, or the route that high vehicles should take under a low arch bridge (may be reversed) Double white lines These are used to prevent overtaking where visibility is restricted, and to separate opposing traffic flows on steep hills with climbing lanes. Double continuous lines are also sometimes used on other single carriageway roads that have two lanes in at least one direction.
An Illustrated Guide to USAF the Modern US Air Force by Bill Gunston