The Tube station where the map says you can’t change lines but you can

The London Underground map has its quirks, with one station’s interchange left out to make the map easier to read

Ever found yourself pondering the sprawling Tube network as you hurtle through the tunnels, taking note of the many connections at various stations?

Observant commuters may spot an oddity on their trusty Tube map – some interchanges are marked by a white circle outlined in black. This is Transport for London’s way of denoting an ‘interchange station’.

Curiously, however, Gloucester Road, which serves as a junction for the District and Circle lines with the Piccadilly line, doesn’t bear this distinction. There’s neither a white-with-black-circle symbol nor an additional station listing on either the strip maps inside carriages or the full Underground map.

It appears to be acknowledged on the Piccadilly line, but only in a more subtle way by the Circle and District lines. Directly below the station name on the Piccadilly line, there are lines sticking out from the Circle and District, but with no station names. You can see this on the map below.

Despite TfL’s Tube maps having recently been updated to recognise Turnham Green and Barons Court as interchange points, the puzzle of Gloucester Road’s omission persists.

Casting an eye over historical maps reveals that these two stations also once lacked the interchange indicator. The question remains: why have they been afforded the status update, but not Gloucester Road?

One theory puts forward that this decision stems from the impractical interchange between lines at Gloucester Road. If you’ve ever alighted at the station via the Piccadilly line, you’ll recognise the distinctive trek to street level.

You must walk to the platform’s end, ascend a substantial flight of stairs, weave through several corridors, before arriving at the entrance to two sizeable lifts (alongside an extensive staircase that barely anyone uses).

Often you’re forced to wait while the lift descends with fresh batches of passengers heading down to the considerably deeper Piccadilly line from above, creating congestion within the station and proving rather irritating if time is of the essence. To alleviate strain on this inefficient arrangement, nearby interchanges at South Kensington and Earls Court are emphasised by TfL maps as alternatives.

Yet, this appears somewhat unfair on Gloucester Road when the map does feature what TfL describes as Out-of-Station Interchanges, or OSIs. These represent stations where TfL permits passengers to transfer between stations or sections of the same station without incurring charges for two individual journeys, despite passing through barriers exiting one station and entering another.

Take Hammersmith, for example, which houses two separate stations – one serving the Circle and Hammersmith and City lines, while another accommodates the District and Piccadilly lines. Despite being located on opposite sides of the road, transferring between them won’t set you back a penny, assuming you adhere to the time restriction.

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