So for events (at stadium or new arena) there will be no more trams than previously (12 minute Ashton service but specials to / from Etihad Campus in between). Now it will be the Media City trams turning round till 8pm then Altrincham trams after 8pm.
No extra "specials" in between the regular 6-minute interval so no relief for the post-event queues (worse when hundreds of parking places in industrial areas are to be included in the extended "residential" parking zone).
Metrolink seem to be arguing that the turnround "siding" (allowing a tram from Manchester to stable between the running lines) cannot cope with anything more frequent, which seems unlikely.
There is a capacity increase as it’s now a scheduled, timetabled 10TPH rather than a sporadic spread of additional sets that rely on drivers wanting to do overtime.
How long does it take to reverse into the siding?
An empty extra tram follows an Ashton tram, reverses into siding, driver changes ends, and then straight into westbound platform. Even if a tram from Ashton is passing, the extra tram would follow it and be out of the siding before the reversal of the tram from Media City or Altrincham.
Quite a while. Trams turning back
must first go all the way onto the outbound platform at Velopark and then make their way back around to the points at 5mph. This is due to a couple of things;
1) the way the signalling is set up
2) to allow easy rescue should the set turning back fail. Stopping at the points would mean you’d have to couple up on a sharp curve which is extremely difficult and dangerous.
Is that the whole turnaround process can't cope rather than just the siding it isn't a proper siding in my opinion. The layout means that a tram turning around here blocks the Ashton bound line while the driver shuts down the cab, goes down to ground level, walks to the other end of the train, climbs up into the cab and then sets up the cab. That's a lot of time to block to Ashton bound line while they are also trying to run some sort of service through to Ashton. I would say this is one of the main things which will cause issues. You'd need more infrastructure to the east of Etihad campus to facilitate more trams turning around. And/Or drivers need to 'step back' so then the turnaround can be completed quicker.
I'm not sure you'd get approval for that, extremely risky.
Correct, although you don’t need to climb down as we use Velopark OB platform to change ends.
There are vague plans to remodel the Velopark area but nothing concrete yet.
It isn't a "siding". It's a third line between the running lines.
They have to change ends now. Compared to random people walking in front of trams on the street, I'm not sure what the safety issue would be.
1) It is a siding. It is literally called Velopark Turnback Siding.
2) Reversing is specifically banned in the Metrolink rulebook except for the purposes of uncoupling a double unit.
3) you would have to be at the leading end in order to call the points to get into the siding.