Centrefix we ve been over this before on earlier threads and here it is
from “The future development of air transport in the UK: North of England”
Page 42, Table 2.2 ‘Population Catchment’
1 hour road catchement population
MAN 5-7 million
LPL 5-7 million
LBA 3-5 million
MME 2-3 million
NCL 2-3 million
HUY 0.6 – 1 million
2 hour road catchment population
LBA 16-18 million
MAN 15-17 million
LPL 13-15 million
HUY 10-11 million
MME 6-7 million
NCL 3-4 million
data per DLTR NAAM model.