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ACoRN (Acton Connect Rapid Network)

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Basil Jet

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Hi all,

I read the official documents about the proposed London Overground stations either side of Old Oak Common, and apparently they were costed at 196 million the pair. The will to build them seems to have faded, but I notice that the ULTra Pod system at Heathrow Terminal 5 only cost 30 million total. So I wondered if an ULTra Pod system could do the job of the two Overground stations, and more, for significantly less money.

ACoRN (Acton Connect Rapid Network) would initially have halts at Park Royal (Piccadilly Line interchange), North Acton (Central Line interchange), Willesden Junction High Level (NLL/WLL interchange), and Willesden Junction Low Level (Bakerloo / WatEus interchange). It would be shown on the tube map not as a line but as a connector blob, to encourage people to view a pod connection from Park Royal to Willesden Junction in the same way that they view the escalator connection from Monument to Bank. The interface in the pod would allow people to select the line they want (for island platforms) and the direction (for side platforms) without naming the stations, in order to reinforce the notion of different lines at a single interchange. This is similar to the way signs in Bank Station point to the District & Circle Lines rather than to Monument.

When appropriate, additional halts at Old Oak Common for the Elizabeth line, GWR and HS2 would be added to the system. The cost of the system would be borne by the railways, in the way that escalator cost is borne.

Chiltern have made noises about reopening the line from South Ruislip to Old Oak Common, but I believe there is enough room along the Central Line corridor for this as well, with no tunnelling or demolition required for any part of the system. The A40 bridge at Park Royal appears to be spacious enough to allow a single track to the north end of each Piccadilly platform.

The outerchange shown on the tube map between Park Royal and Hanger Lane would be replaced by the interchange between Park Royal and North Acton (which has a lot more trains than Hanger Lane). The whole tube map and London Railway map would have to be seriously redesigned because the current distortions place the parts of the new interchange very far apart.
 
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The Planner

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How many pods will you need to even come remotely near the capacity required?
 

Basil Jet

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How many pods will you need to even come remotely near the capacity required?
I don't know, but if you think there is overwhelming demand on this corridor, then you agree that "nothing" is not the right amount of transport provision here, so what do you think is optimal?
 

WideRanger

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I think this sounds like an interesting idea. In a past role, I had a lot of dealings with the people at Ultra. One of the selling points was the scalability of their system. Once you have the segregated trackway in place, you can increase the number of pods as demand rises. You can also add new bits of track relatively easily. I was told that the pods themselves were relatively cheap - they are based on commercial car chassis. And subject to maintenance, they can go all day, charging at the stations as people get on and off. If the additional stations on the overground are not built, this would seem to be a relatively quick and simple way of joining the short distance between Old Oak Common and Willesden Junction. I'm a bit more sceptical about the need to join through to North Action and Park Royal, looks like a long (expensive) way, and not a lot of demand.
 

Basil Jet

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I'm a bit more sceptical about the need to join through to North Action and Park Royal, looks like a long (expensive) way, and not a lot of demand.

Park Royal to Leicester Square via Piccadilly Line = approximately 32 minutes
Old Oak Common to Tottenham Court Road via Crossrail = approximately 9 minutes

Looking at that I wonder how ACoRN could cope with the sheer volume of Piccadilly passengers that it would steal at Park Royal.
 

WideRanger

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Park Royal to Leicester Square via Piccadilly Line = approximately 32 minutes
Old Oak Common to Tottenham Court Road via Crossrail = approximately 9 minutes

Looking at that I wonder how ACoRN could cope with the sheer volume of Piccadilly passengers that it would steal at Park Royal.
Another reason why it is unlikely they would do it. Building a piece of infrastructure whose main purpose would be to undermine another piece of infrastructure you own (but which works OK), doesn't see like a sensible investment.
 

61653 HTAFC

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If a promoter seems to have spent more time coming up with a snappy acronym than they have doing on-the-ground research, it should be taken with a bucket of salt.

If the answer they come up with involves the words "autonomous" and "pods", even more salt is required.
 

swt_passenger

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If a promoter seems to have spent more time coming up with a snappy acronym than they have doing on-the-ground research, it should be taken with a bucket of salt.

If the answer they come up with involves the words "autonomous" and "pods", even more salt is required.
I don’t think there is a “promoter” as such. I think reading post #1 again this is just a personal idea?
 

The Planner

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I don't know, but if you think there is overwhelming demand on this corridor, then you agree that "nothing" is not the right amount of transport provision here, so what do you think is optimal?
The two stations would be optimal.
 

The Planner

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Thanks. Were you personally involved in the assessment concerned or did you just think they came to the right conclusion?
Depends on what it was based on, if funding was a factor then everything else is normally sidelined.
 
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