Part 2 Operations is also available (ISBN 0115527397).D3.2.22 The minimum headroom to be provided at temporary structures (for example, scaffolds, falsework, temporary accesses, etc.) ... The minimum width lane at which shuttle working may be maintained is 3.0m, but, car-only traffic can be maintained with a minimum of 2.5m. ... Whenever this situation arises, advance warning of the narrow lanes should be given using signs to diagram 516 or 517. D3.3.3anbsp;...
|Title||:||Traffic Signs Manual: Design|
|Publisher||:||The Stationery Office - 2006|