Hitchin Fly-over

Are there any aerial maps showing the construction work underway? I could not find it on Google.

Barry

Thanks for uploading those panel pics, Peter. Do you think you'll be adding any pics of Wimbledon ASC if you still have them?

Thanks for this, it's news to me!

No FCC driver signs it yet. Apparently driver managers are going to learn it and then conduct drivers over until everyone's been done (which may take a while as every depot will sign it).

Im on nights next week so i'll be very suprised if there's a manger waiting to conduct me over!

Passenger trains used the flyover today, so presumably someone must sign it?

How many runs does it normally take before you can sign the route?

I also note that the 3 new 'preliminary route indicators' installed between Stevenage and Hitchin which give advance warning of the route, are all still bagged over and out of use.

Is the DM signal (can't recall the number) at Hitchin approach released for left divergance as I believe it is for the right? It's 70mph crossing I noted

When everything is up and running, and if the fast Cambridge/King's Lynns use the flyover, I wonder if the routing will be Down Fast > Down Slow south of Hitchin, then through the platform line, or if they will crossover immediately north of the station. The former would give 70mph crossing but the latter much less (30mph?) The PRI's positions suggest it's more likely to be the latter option (there's one for both fast and slow roads north of the 70mph crossover.)

At the moment it is approach released (K699), the idea behind the preliminary route indicators (PRIs) is that once it's all up and running it won't be approach released. You'll get greens throughout with the PRIs giving you warning of which way you're going so you can brake the train accordingly. I also believe that this will be the case for diverging right (the 'old' way).

The plans I have show the old down line downgraded to 50 from 80 between Cambridge Jn and the fly-over end (does it have a Junction name?).

North crossover was plated 70mpm last weekend and the bridge turnout is also plated 70, falling to 50 near the start of the bridge sections.



The plans I have show the old down line downgraded to 50 from 80 between Cambridge Jn and the fly-over end (does it have a Junction name?).

Peter

The old line was (frustratingly) downgraded to 50mph a few months back - around the time the pointwork was installed at "Hitchin East Junction." Highly un-imaginitive name in my opinion. It's closer to Letchworth than Hitchin for one thing.

Interesting. I thought overlapping flashing sequences, with one signal showing both FY and FYY, were forbidden.

Noted this morning that the other end is Hitchin North Jn. Flyover and Stotfold Rd junctions might have been more imaginitive.

Peter

I see no way of being able to reverse into the down siding