The Bristol to Birmingham corridor has changed out of most recognition since its low point at the end of 1971
New stations have opened ... Filton Abbey Wood, Bristol Parkway, Yate, Cam and Dursley, Ashchuch for Tewkesbury, University, and Five Ways. Worcestershire Parkway opens in 4 weeks. Stations have seen massive service changes ... Lawrence Hill, Stapleton Road, Bromsgrove, Barnt Green, Longridge, King's Norton, Bourneville and Selly Oak. Gloucester Eastgate on direct services has been replaced by Gloucester Central where through trains need to reverse. The only 'unchanged' station between Bristol Temple Meads and Birmingham New Street is Cheltenham Spa.
Many passenger service from those days remain recognisable. In 1968, trains from Bristol (and perhaps further south west) to Derby or beyond - perhaps as far as Newcastle - every hour or so. Every couple of hours or so, an extra train ran from Bristol to Worcester, mostly calling at Ashchurch (which closed in 1971, for 26 years!). Those trains are still there. The Bristol via Birmingham service no longer calls at Gloucester, but does call at Bristol Parkway which opened in 1972. The local trains to Worcester have extra calls at Filton Abbey Wood, Bristol Parkway, Yate, and Cam and Dursley. They now reverse at Gloucester Central rather than a quick call at Eastgate, and they're stopping at Ashchurch again.
And there are extra trains too
... between Bristol and Cheltenham Spa, the service to Worcester that has become the stopper has been stepped up to hourly, with the extras reversing at Cheltenham Spa.
... an extra train (so that's every half hour now) runs from Bristol to Birmingham - stops at Bristol Parkway and Cheltenham Spa. Then on to Manchester.
... and a train from Cardiff joins the line at Gloucester and carries on via Cheltenham Spa to Birmingham. Some stop at Ashchurch and most at University. Then on to Nottingham.
Towards the end of the line, Bristol to Filton (many carrying on to South Wales) and Parkway provide a local service.
At the other end, a few more trains from Worcester run to Birmingham ... joined by electric trains in from Bromsgrove and Redditch to serve those local stations that had minimal service 50 years ago.
Here is the northbound timetable from 1968, Monday to Friday - before Ashchurch closed.
As each new station (re)opens ... there are questions. What should stop there? How will it effect the time taken by through passengers? Will there be enough seats? Will it hold up other trains? And as a new train gets slotted in, where to skip and where to stop? Is this a local, a regional or an express train?
Times changes. Passenger train journeys have doubled in 20 years, but that's not uniform. Very long distance journeys have, I think, not risen as much - they may even have fallen because of domestic flights. Regional journeys have rocketed. Season tickets have actually started to fall. Worcestershire Parkway opens before Christmas, and there are suggestions for more new stations ... we've chatted Stonehouse (Bristol Road) and Quedgeley
http://www.passenger.chat/22459 . There are significant gaps in through journey opportunities - Worcestershire Parkway to Bristol, the south to Bromsgrove. And some journeys are really slow - Gloucester to Bristol or infrequent - Cheltenham Spa to Worcester. Times change - and is it time to look at recasting and changing stopping patterns along the Bristol to Birmingham corridor?
Edit - just correcting a couple of small but irritating typos