Excellent. The late Keith Waterhouse offered equally helpful ( ! ) advice on "How to metricate your cat" and similar topics.

Joke's on you. In the US, we're now measuring everything in Macy's Thanksgiving Day Snoopy Balloons.

@@HarryLovesRuth I presume they're equivalent to 1/270th of a football field

Don't forget the traditional British measurements such as the Double Decker Bus or the Wales. The Wales, you say? Yes. "Deforestation has been carried out over an area half the size of Wales."

I worked at a company which ran into financial difficulties. A new CEO was appointed and as his first act, he ordered a hugely expensive Mercedes as his company car. A colleague suggested that all financial quantities should be expressed in Deutsch Mercs. We had fun with that until we got found out. For all you youngsters, Germany's unit of currency used to be the Mark or Deutsch Mark. There was a 'Spitting Image' gag with Ronnie Raygun saying "Why do I have to help Sterling ? I've already helped his friends Mark and Frank."

Is that fluid oz or dry oz?

I assume if you walk quickly and efficiently, these become fluid ounces.

"A few yards, or in French measurements 38 grammes."

The wonderful wizard of Oz

@@44oblong Reversed, the joke doesn't work nearly as well, don't you think?

I'd argue that although the changing time at South Kensington is longer, South Ken serves eastbound district trains to Upminster from Wimbledon, Ealing Boardway and Richmond, as well as the circle line, so potentially the waiting time is less. I guess it also depends on your destination, if your destination is beyond Tower Hill, you lose the advantage of having the circle line and therefore may not benefit much from saving your waiting time.

@@make-some-noise I tested it a number of times by noting the number of the District train as I was leaving Hammersmith on a Piccadilly train and noting the train I got on at South Kensington.

My memory tells me that Barons Court was always cold and windy, Hammersmith much less so.

Those on Winbledon branch have no such choice unfortunately

Depends how fast you walk between platforms (and if you have luggage), whether the extra trains available from Wimbledon and the Circle Line make much frequency difference, how much time is gained by Piccadilly trains missing out West Kensington, and how long the District train may wait at Earls Court for an interchange or conflicting movement. For convenience, Hammersmith. If every minute counts, maybe South Ken or Earls Court. If you want fresh air and historic (but less comfortable?) platform seats, Barons Court.

That sounds like my theory...at least the one I have now since reading this.

That makes a lot more sense than Jago's theory, since a 1950's tube map also shows South Ken and Earls Court as District/Piccadilly interchanges and not Gloucester Road, yet at that time the South Kensington interchange was via the booking hall, as at Gloucester Road.

Though Gloucester road is the first/last (depending on direction of travel) interchange between the Piccadilly and the Circle.

Heh, I've stayed at that Marriott too, and usually walked to Gloucester road if I was city bound, or Earl's Court if I was airport bound.

If Yerkes had asked a fee whenever Jaggo mentiones his name he’d be richer than ever he could’ve even been able to afford to build another line - the Jago line😂

@@JMSBRK Sorry to "rain on your parade" but a Jago line would be distinctly Hazzardous !! 😎😱

At this point Yerkes is effectively the patron saint of this channel.

I'd certainly go for that.

Clearly, Yerkes should be played by Jago himself. Charm and charisma but with a hint of pure evil.

Johnny Depp would suit the role and can carry a handlebar moustache!

@@RossMaynardProcessExcellence I recommend Jay Foreman

Charles Dance?

Peter Bowles would have been an ideal choice.

New York is a city you have to be careful about entrances and construction notices, if you enter in a place affected or heading the unintended direction, you have to sometimes travel on subway where you can flip directions or end up paying additional fare to correct the issue, which for a unlimited pass holder can mean a 18 minute wait [3/10ths of a hour, why the odd] to reboard with ticket.

@@john_smith1471 I would have guessed a Piccadilly line train, then transfer to the Central line if they never had a Circle line train coming through. Maybe they actually run a few Circle line trains at night when the traffic is lower?

Pretty sure there are loads of OSIs that aren't on the maps to reduce clutter. Also AIUI the dotted lines on the map are only used where you have to leave the station to the street. OSIs where you leave the barriered areas but remain within the station complex are not distinguished on the maps from other interchanges (this is especially noticable on the "rail and tube" map but it does happen on the tube map too)

What name would you give to one that had not turned grey yet?

If you were at Tower Hill, and you wanted to go to Finchley Road, it is probably better to change at Backer Street where you would have a lot more trains to choose from. If you are going in the opposite direction, change at Baker Street if the first Met Line train terminates there, otherwise, change at some other station before Aldgate for a guaranteed same-platform interchange.

Maybe the map designers just felt there were enough other interchanges advertised in the area, so advertising the Aldgate interchange would be visual clutter that would slow down map reading and not provide enough value. I'm choosing to see the non-marking of the interchange as simply a decision not to advertise the interchange service on the map, not a claim that the station is not considered to be an interchange.

Another factor to consider is waiting times. In some cases the schedules of the two lines are such that waiting times are very short, in others they are much longer because an outgoing train leaves just before the incoming one arrives. This assessment certainly applies to National Rail and I believe it is applied to the tube network as well.

You don't show a station as an interchange, just because two lines serve that station. Why would you want to change at Aldgate between the M and C lines ? If you're on a M train traveling Metroland-Baker Street-City, the farthest it goes is Aldgate anyway. You /might/ be lucky in that a C clockwise train is being held in an adjacent platform at Aldgate, for you to travel further clockwise round the C, but you're really expected to change to the Circle somewhere between GPS and say Farringdon. If you were already on a CW C train through Aldgate, there'd be no point in changing /to/ a M train, because the C already runs a superset of that route thereon anyway, the M terminating at Aldgate. If you are on an ACW C train passing through Aldgate, you /might/ find a convenient M train ready to go in the next few minutes but, you'd still be better changing out of the Circle at any later point up to GPS. At places like Aldgate, the cross platforms are there to regulate the longer turnaround times of the M. They are holding platforms, not for allowing transfer between two lines.

If you’re on the Met Line but your destination is say Tower Hill, you’d really want to change at Liverpool Street. If you stay on the Met Line all the way to Aldgate you could end up in platform 3, in which case you’d have to take the stairs to cross over to platform 1 for a Circle Line toward Tower Hill. Met Line uses both platforms 2&3 at Aldgate. Only platform 2 is directly adjacent to platform 1 for the Circle Line via Tower Hill.

Or 16 oz away.

In the days when I used to go to 40 or so Prom concerts every season, my station of choice for the Albert Hall was Gloucester Road. My memory suggests that there weren't too many stairs.

Sponsorship. TfL have gotta get that cash any which way they can

The next station is ,,,, Hammersmith ,,,,,, change here for ,,,,, The Piccadilly Line ,,, The Hamersmith and City Line ,,, ,and ,,,, The Circle Line......... Alight here for ,,,,,,The Hammersmith Appolo ,,,,, and ,,,,, Ikea. Please Mind The Gap when departing from the train. This is a ,,,,,, District Line service to,,,, Ealing Broadway.

One word, sponsorship.

I assume IKEA offered *loadsamoney*! 😎

@@marcelwiszowaty1751 L-O-D-S of E-M-O-N-E, what's that spell? LOADSMONEY, prob'ly!

Those aren't quirks, they're majesty.

The imperial system was hugely practical. A foot is the length of a typical human foot. An acre is the area that a man and a team of 8 oxen can plough in a day. 12 pennies in a shilling - 12 is divisible by 2,3 4 and 6 - who ever wanted to divide anything by 5 ? And so on. Decimal units are soulless in comparison.

@@hb1338 From what you've said, it looks like it's very reliant on guesswork. Despite decimal units being more "soulless", they are based on proven scientific experiments (ie a metre = the length of the path travelled by light in a vacuum during a time interval of 1/299,792,458 of a second)

pounding the platform

Could be crowd control again. Barbican is between two other busy interchange stations, there's Farringdon with Thameslink on one side, Moorgate with the Northern line and Northern City (and now it's become a monster of a thing with Crossrail joining it with Liverpool Street to boot) on the other. So ti could suggest that if you only need to change between Metropolitan, Circle or HAmmersmith & City, please do it here instead of where it's more busy.

That hypothesis is indeed the case if you ever come to Washington, D.C., USA, and ride the Metro. Only the stations where two lines merge, diverge, or cross are show on the map as interchanges, despite sharing platforms for substantial stretches. It keeps the map cleaner, and let's you know quickly your first or last chance to change trains.

I called them "blips" but I think Beck had a specific word for them

According to the Urban Dictionary, nubbin has a second definition, which is very rude. Jago's mother will not be pleased.

Ooh, that hurt!

Q: Why did the chicken cross the road ? A: To escape the mad decorator ?

It's because, for a lot of the time, the Bank and CX branches of the Northern run effectively as separate lines, with Kennington effectively being the terminus for one of those. It's different again, now, with the Battersea Power Station Station open. Surrey Docks^H^H^H^H^HQuays is not shown as an interchange because there are already through trains on both branches: there is no advantage to 'getting the first train and changing at SQ', unlike at say C and Latimer, where you /do/ have to get the first available service from say Rickmansworth, to change at C+L, especially if there's a Chiltern Turbo involved. Interchange does not mean 'junction'

@@quantisedspace7047 Yeah I'm aware of the Northern Line service pattern and I suppose it makes sense, even if it's a bit inconsistent. Personally I think the Northern Line should be shown as two lines on the map, even if both those lines go to the two northern termini for now, until they upgrade Camden Town and can do a genuine split.

Moor Park is not an interchange, because you change from fast to slow services on the same line - you could call it an intrachange.

@@ijmad Yes, split the Northern Line into two. This would make Camden Town a bit more platform-predictable.Currently, going southbound, the trains use the platform reflecting their origin, but southbound, the trains use the platform reflecting their destination (CX versus Bank). This doesn't matter if you're going to Euston if course. Except that it does: the N Line Bank branch southbound at Euston is one level below the corresponding CX line.

And also "The Garbage", a guide to shopping in Carnaby Street.

Possibly Euston or Oxford Circus, both of which have one genuine cross-platform interchange and also one reasonably smooth additional interchange

@@haltendehand1 Finchley Road is another super smooth one. Many's the time I've arrived on a Met Line train, just as an adjacent Jubilee Line train has pulled in on the next platform, and it's literally four steps between trains.

Mile End has x-platform changes from the Central to District/Hammersmith and City.

My choice would be Baker Street. Jubilee to Bakerloo almost cross platform and eastbound circle to northbound met almost again..

@@AFCManUk They do try to do that with the timetable to make things as easy as possible.

I noticed that phenomenon as well. I suspect it is all down to the different ways JH sounds that name.

There's a very long walk from the Piccadilly to the Jubilee.

Metropolitan to Piccadilly at Rayners Lane used to have me shouting "wait" to the guard as I hurtled down the stairs, followed by expletives hurled from the platform as the train moved off without me. I would have been much calmer if the guards had not had a smug look on their faces.

I've never understood why the original Met station wasn't sited immediately opposite the main line one. Or at least, why there isn't an exit/entrance on the east end of the platforms.