LNW-GW Joint
Veteran Member
South of Ludlow actually, and there are bits of 90 from Craven Arms southbound.90. Sections south of Hereford.
Also Crewe-Manchester (110 Sandbach-Cheadle Hulme), and most of Shrewsbury-Gobowen and bits of Rossett-Saltney Jn.
Some short 90 sections on the North Wales coast between Connah's Quay and Bangor (typically not through stations).
90 is quite hard to reach on much of the signed route in North Wales with the stopping patterns and frequent dips in line speed.
The biggest difference with the MU speed profile used by 197s is between Shrewsbury and Nantwich which is mostly 70/90MU.
A non-stop LHCS service will lose about 6 minutes against a 197 on that stretch, but gain a bit on the run on to Wilmslow.