AlastairFraser
Established Member
- Joined
- 12 Aug 2018
- Messages
- 4,162
The passenger capacity of 4bph pales in capacity to traffic on the A1307 though. A train would be much more competitive.The existing Cambridge-Haverhill service suggests otherwise, with 4 bph, plus the Granta Park private service.
Why would they be unlikely to use it? Dullingham station seems to be a 10 minute drive away from Bottisham, and then the train into Cambridge is only 16 minutes, so overall around 30 mins. It takes slightly less time driving directly off peak, but you also have to contend with the unreliability of predicting Cambridge traffic issues and the insane cost of parking in central Cambridge.People from Bottisham are unlikely to head for Dullingham, Stetchworth and Cheveley are not big numbers. The big win for an A11 parkway is places beyond Newmarket, particularly Mildenhall.
Surely that wouldn't be wise as that area looks to be on the floodplain of the River Cam?My fallback plan for Whittlesford is to move the station a bit nearer to Cambridge with a central reversing platform like Beaulieu Park and better road access to the car park.
I was suggesting 2tph from A11 Parkway, you could increase that to 3tph if needed. Whittlesford doesn't bring the same benefits - it's a bit further away from the main road and thus less attractive to A11 traffic, you'd lose the science/business traffic to bus, and you wouldn't serve Sawston.Pushing 4tph to A11 parkway is likely to be technically difficult, requiring double track and increased costs. 6tph to Whittlesford is viable with a bay platform, providing a genuine turn up and go service with 2tph to Newmarket. On the other hand a 2tph service from A11 isn't particularly attractive for non science park users. Charging can happen on the move. A light rail route is probably the best solution for Haverhill.
Charging can happen on the move, but it's less reliable than a fast charge at a terminus, and with a Newmarket service, you only have approx 4.75 miles to charge on the wires from the junction at Shelford to Coldham Lane junction (if you were to reopen the Haverhill branch as far as A11 Parkway initially), then the unelectrified section to Newmarket from Coldham Lane junction is approx 13.4 miles with several station stops.
The issue with light rail to Haverhill is that it would have to be tram-train, otherwise you have no viable path into central Cambridge. As a second phase of Haverhill line reopening, it's not a bad idea.