From Watford Junction to St Albans Abbey there are six stops (St Albans Abbey, Park Street, How Wood, Bricket Wood, Garston, Watford North & Watford Junction). The sum of the distances between these stations totals 10.1 km. I looked at all of the London Midland network and identified the following routes with the same number of stops and a similar distance and compared their price of a single off peak ticket.
- Watford Junction to St Albans Abbey, six stops 10.1 km 18 min £5.10 = £0.50/km
- Lidlington to Bletchley, six stops 13.4 km 23 min £4.50 = £0.34/km
- Birmingham Moor Street to Solihull, six stops 10.5 km 11 min £3.50 = £0.33/km
- Birmingham New Street to Northfield, six stops 10.5 km 18 min £3.30 = £0.31/km
- Birmingham New Street to Coseley, six stops 14.9 km 13 min £4.30 = £0.29/km
- Shenstone to Chester Road, six stops 11.8km 15 min £3.40 = £0.29/km
- Danzey to Shirley, six stops 10.3 km 17 min £2.80 = £0.27/km
- Birmingham New Street to Bloxwich, six stops 19.3 km 31 min £4.00 = £0.21/km
As you can see Watford Junction to St Albans Abbey is the most expensive base on price and price per km. In fact the price per km nearly 50% more than the second most costly journey per km. Based on the other routes the price for Watford Junction to St Albans Abbey should be in the range £2.10 to £3.41 with an average of £2.91, not the £5.10 which it currently is.
One thing to note is that Lidlington to Bletchley is on the Bletchley to Bedford branch line which makes it very similar to the Abbey line – so why is it so much cheaper even though the distance is further?
One final note is that Watford Junction to St Albans Abbey is about the same distance as Wembley Central Rail Station to London Euston Rail Station (which is 11.6 km) and on Oyster this journey costs £2.80 off peak.