Any commuter knows the frustration of watching the train they've just run for already pulling away from the platform.
But an incredible new version of the London Underground map promises to make missing the train a thing of the past.
Created by engineer and writer Ben James, this live version of the iconic Tube map reveals the real-time location of every train in the capital.
Curious travellers can watch their train move along the lines, and see the exact time it will pull into the station.
Using open data from Transport for London, the map works out where each train is on its current route and reveals any blockages, delays, or traffic as it happens.
Data-obsessed commuters can even zoom in to see the model number of any train and learn when it will reach its next few stops.
On social media, commuters have hailed the revolutionary new Tube map as a game-changer for London transport.
One enthusiastic commenter wrote on X: 'This kind of sign should be in every bus stop, station and airport!'
An engineer has created a new version of the London Underground Map which reveals the location of trains in real-time
Unlike the real Transport for London (TFL) Tube map (pictured), this live version matches the real geography of the city of London
On social media, commuters have been hailed the live tube map as a game-changer for their daily commute on the London Underground (stock image)
To try the map out for yourself, all you need to do is click on the interactive map in this article.
Selecting the map will reveal the sprawl of London's topography overlaid with colourful lines representing each of the different Tube lines.
Within the lines, you will be able to see dark shapes representing the trains as they move between stations.
If you want even more information, hover over any of the trains to pull up a more detailed description.
This will reveal the train's serial number, origin, destination, expected time of arrival and even how much progress it has made towards its next stop.
Zooming out reveals a fascinating overview of London's underground network stretching all the way from Chesham in the northwest to Upminster in the east.
In this view, you can also see just how misleading the real London Underground map can be.
Rather than connecting in a neat grid as Transport For London's (TfL) version would suggest, the real layout of the Tube is far more spread out.
This incredible map allows users to watch live as trains travel from station to station along the underground lines
Hovering over a train brings up a more detailed set of information, including the train's serial number and its estimated arrival time
For anyone after more detailed information, the website also includes live departure boards for any station in London
Likewise, looking from above it is also clear just how much the London Underground favours locations north of the river, with just a few solitary lines extending into the south.
Yet the most fascinating part of this map might be revealed when you start to zoom in.
Getting closer, the city's grid pops up into a near-perfect 3D representation of the city and some of its most famous landmarks.
You can scroll over to Westminster to take a look at Big Ben and the Houses of Parliament or even pan to Trafalgar Square and watch as trains pull into Charing Cross Station.
Any Londoners using the map will also be able to waste plenty of time trying to find their own houses amid the 3D grid.
Since Mr James published his creation earlier this month, transport fans have flocked to social media to share their enthusiasm.
One keen commenter shared a screenshot of the live map, writing: 'It works! Live tracking my train on the district line. Super cool.'
'Simply brilliant', another added.
Zooming in reveals a near-perfect 3D map of the city, complete with famous landmarks like the London Eye and the Houses of Parliament
You can watch as trains pull into Charing Cross station by the 3D rendering of Trafalgar Square
This is not the first alternative London Tube map. Last year a cartographer created a new version of the map using concentric circles and spokes, which the creator claims is easier to understand
While one commenter joked: 'Don't do this to me! I need to focus at work... Love this!'
Whether you live in London or not, the map is a truly fascinating and oddly relaxing way to explore the city's chaotic underground.
But this isn't the first time that inspired commuters have produced their own takes on the famous Tube map.
Last year, Dr Max Roberts, a cartographer based in Essex, created a 'concentric-circles-and-spokes' map.
This version charted the stations across all 11 lines of the London Underground, as well as the Elizabeth Line, Croydon Tramlink, Docklands Light Railway (DLR), Overground, Great Northern City Line, and Thameslink Services.
The original London Underground map was drawn up almost 90 years ago by Harry Beck, an electrical draughtsman who based his map on the circuit drawings used in his day job, rather than focusing on geography.
However, Dr Roberts complains that the modern version is 'in a very poor state' with too many lines and stations squeezed into a small space.
His new version uses circles and spokes radiating from a central point to show the connections between the stations in a more organised way.
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