My TFL daily travel alert message says:

METROPOLITAN and PICCADILLY LINES: Between 2100 and 2140 on Monday to 
Thursday evenings until early September, the Metropolitan line service is 
suspended between Hillingdon and Uxbridge and the Piccadilly line is 
suspended between Ruislip and Uxbridge. Customers are advised to use Bus 
Route U2, which has been enhanced, between Hillingdon and Uxbridge.

Can anyone explain this please? 40 minutes of engineering work per day?

MaxB

In message <48634765$0$25949$6e1ede2f@read.cnntp.org>, Batman55 
 writes
>My TFL daily travel alert message says:
>
>METROPOLITAN and PICCADILLY LINES: Between 2100 and 2140 on Monday to
>Thursday evenings until early September, the Metropolitan line service is
>suspended between Hillingdon and Uxbridge and the Piccadilly line is
>suspended between Ruislip and Uxbridge. Customers are advised to use Bus
>Route U2, which has been enhanced, between Hillingdon and Uxbridge.
>
>Can anyone explain this please? 40 minutes of engineering work per day?

I know this one.

It's the amount or time required to put protection in place at Uxbridge 
for the works on the station roof.  Apparently once that is done, normal 
services can then resume until end of traffic.
-- 
Steve Fitzgerald has now left the building.
You will find him in London's Docklands, E16, UK
(please use the reply to address for email)

On Jun 26, 10:17 am, Steve Fitzgerald  wrote:
> >My TFL daily travel alert message says:
>
> >METROPOLITAN and PICCADILLY LINES: Between 2100 and 2140 on Monday to
> >Thursday evenings until early September, the Metropolitan line service is
> >suspended between Hillingdon and Uxbridge and the Piccadilly line is
> >suspended between Ruislip and Uxbridge. Customers are advised to use Bus
> >Route U2, which has been enhanced, between Hillingdon and Uxbridge.
>
> >Can anyone explain this please? 40 minutes of engineering work per day?
>
> I know this one.
>
> It's the amount or time required to put protection in place at Uxbridge
> for the works on the station roof.  Apparently once that is done, normal
> services can then resume until end of traffic.

This might be a stupid question - but if the protection is such that
it allows normal services to happen while it's in place, why don't
they just leave it up 24/7?

--
John Band
john at johnband dot org
www.johnband.org

On Jun 26, 10:28 am, John B  wrote:
> On Jun 26, 10:17 am, Steve Fitzgerald  wrote:
>
> > >My TFL daily travel alert message says:
>
> > >METROPOLITAN and PICCADILLY LINES: Between 2100 and 2140 on Monday to
> > >Thursday evenings until early September, the Metropolitan line service is
> > >suspended between Hillingdon and Uxbridge and the Piccadilly line is
> > >suspended between Ruislip and Uxbridge. Customers are advised to use Bus
> > >Route U2, which has been enhanced, between Hillingdon and Uxbridge.
>
> > >Can anyone explain this please? 40 minutes of engineering work per day?
>
> > I know this one.
>
> > It's the amount or time required to put protection in place at Uxbridge
> > for the works on the station roof.  Apparently once that is done, normal
> > services can then resume until end of traffic.
>
> This might be a stupid question - but if the protection is such that
> it allows normal services to happen while it's in place, why don't
> they just leave it up 24/7?
>
> --
> John Band
> john at johnband dot orgwww.johnband.org

Because the protection involves shutting off a platform, you would not
be able to handle the peak hour service, Met line every 6 minutes and
Piccadilly every 15 mins to Uxbridge (15 to Ruislip).

In message 
, 
John B  writes

>> >Can anyone explain this please? 40 minutes of engineering work per day?
>>
>> I know this one.
>>
>> It's the amount or time required to put protection in place at Uxbridge
>> for the works on the station roof.  Apparently once that is done, normal
>> services can then resume until end of traffic.
>
>This might be a stupid question - but if the protection is such that
>it allows normal services to happen while it's in place, why don't
>they just leave it up 24/7?

That one I don't know.  I'm guessing here that it might involve getting 
people to and from the work site - you would hardly leave them there 24 
hours would you?
-- 
Steve Fitzgerald has now left the building.
You will find him in London's Docklands, E16, UK
(please use the reply to address for email)

In message 
, 
chunky munky  writes

>> This might be a stupid question - but if the protection is such that
>> it allows normal services to happen while it's in place, why don't
>> they just leave it up 24/7?
>>
>
>Because the protection involves shutting off a platform, you would not
>be able to handle the peak hour service, Met line every 6 minutes and
>Piccadilly every 15 mins to Uxbridge (15 to Ruislip).

At that time of night (2100 isn't it?) the Picc is 20 mins to UXB; but 
the point is still the same I guess  They most likely just turn one trip 
at Ruislip.

In fact I think the Picc is always every 20 mins to UXB other than early 
mornings and late nights, the Ruislips increase the service level from 
Acton - Rayners.  I only have a WTT41 here but it certainly was then and 
I've not noticed any serious changes with TT43.
-- 
Steve Fitzgerald has now left the building.
You will find him in London's Docklands, E16, UK
(please use the reply to address for email)

On Jun 26, 12:20 pm, Steve Fitzgerald  wrote:
> In message
> ,
> chunky munky  writes
>
> >> This might be a stupid question - but if the protection is such that
> >> it allows normal services to happen while it's in place, why don't
> >> they just leave it up 24/7?
>
> >Because the protection involves shutting off a platform, you would not
> >be able to handle the peak hour service, Met line every 6 minutes and
> >Piccadilly every 15 mins to Uxbridge (15 to Ruislip).
>
> At that time of night (2100 isn't it?) the Picc is 20 mins to UXB; but
> the point is still the same I guess  They most likely just turn one trip
> at Ruislip.
>
> In fact I think the Picc is always every 20 mins to UXB other than early
> mornings and late nights, the Ruislips increase the service level from
> Acton - Rayners.  I only have a WTT41 here but it certainly was then and
> I've not noticed any serious changes with TT43.
> --
> Steve Fitzgerald has now left the building.
> You will find him in London's Docklands, E16, UK
> (please use the reply to address for email)

I was referring to the affect on a peak time service of leaving the
protection arrangements in 24/7 which John enquired about.
The Picc in the peaks is booked to run every 15 mins to either
Rayners, Ruislip or Uxbridge, thus a 5 min service up to Rayners

In message 
, 
chunky munky  writes

>> In fact I think the Picc is always every 20 mins to UXB other than early
>> mornings and late nights, the Ruislips increase the service level from
>> Acton - Rayners.  I only have a WTT41 here but it certainly was then and
>> I've not noticed any serious changes with TT43.
>
>I was referring to the affect on a peak time service of leaving the
>protection arrangements in 24/7 which John enquired about.
>The Picc in the peaks is booked to run every 15 mins to either
>Rayners, Ruislip or Uxbridge, thus a 5 min service up to Rayners

Ah, I've just realised this takes a platform (presumably 2/3) out until 
EOT.  I'd not realised that, and not having been there for a few weeks I 
wasn't fully aware the extent of the works.

And yes, I see from TT41 that we do indeed run through to UXB every 15 
mins in the peaks.
-- 
Steve Fitzgerald has now left the building.
You will find him in London's Docklands, E16, UK
(please use the reply to address for email)