johnbrooks1 wrote:
iS THERE A STANDARD METHODOLOGY BEING ADOPTED NATIONWIDE?
But to answer your question in short John, they basically observe the major ranks in an area over a month or so.
If customer waits are above average during the day, five minutes is the norm, then that's usually evidence of sig un-met demand. If the waits are just above average on a Friday or Saturday night, then that's usually not evidence of sig un-met demand.
But, and it's a big but, the DfT are looking towards making all un-met demand significant, no matter when it occurs.
Another thing that surveyor are meant to do, but many ignore, is to take customer views and plate values into the final equation.
If you want to elaborate on your question, then maybe folks on here could give you a more detailed answer.