Latest from HE
The following VMS documents have been reviewed as part of the DMRB work:
TD33/05 Use of variable message signs
TD46/05 Motorway signalling
TD18/85 Criteria for the use of gantries for traffic signs and matrix traffic signals
TA60/90 Use of variable message signs
TA83/05 Guide to the use of variable message signs
TA74/05 Motorway signalling
IAN109/08 Advice regarding the motorway signal mark 4
IAN149/11 Motorway signalling
All of the above will be withdrawn. All Design requirements and advice will be detailed within the newly drafted document titled: CD146 Positioning of signalling and advance direction signs. HE confirm they have no date for publication of this document.
Functional requirements of these systems are contained with technical specifications on the TSS Plans Registry.