LONDON — As the world’s oldest subway, better known as the Tube, celebrates its 150th birthday, here’s a familiar but gently tweaked reminder:
Mind the map.
The London Underground is justly famous as a defining feature of the British capital, a wonder of the modern age that whooshes millions of riders around the city every day.
But a London institution that may have an even tighter grip on the public imagination is having a birthday too (its 80th): the Tube map.
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Instantly recognizable the world over, the simple yet elegant diagram of the 249-mile subway network is hailed as one of the great images of the 20th century, a marvel of graphic design. Its rainbow palette, clean angles and pleasing if slightly old-fashioned font (Johnston, for typography buffs) have endured since hurried passengers first stuffed pocket versions of the map into their raincoats in 1933.
“It’s a design icon,” said Anna Renton, senior curator at the London Transport Museum. “You shouldn’t use that word too often, but it really is.”
It’s been copied by other cities and riffed on by artists and satirists. It’s omnipresent in souvenir shops, plastered on mugs, underwear, mouse pads and tote bags, on sale next to the “Mind the Gap” T-shirts.
Perhaps most impressively, the image is stamped onto Londoners’ brains. If the Tube is how people get around London, the Tube map is how many conceive of this sprawling city, their sense of its geography shaped — and sometimes warped — by the drawing’s streamlined, reductive layout.
Tell a Londoner the name of a neighborhood on the other side of town, and you may get a blank stare; mention the closest Underground line and station, and the mental GPS kicks in.
All credit goes to a problem-solving electrical draftsman named Harry Beck, who came up with the design in his spare time in 1931.
At that point, more geographically accurate maps of the Tube were already in use. But the expansion of the network into the suburbs made such depictions unwieldy, and their curving, intersecting lines had come to resemble a nest of snakes, a plate of spaghetti or London having a very bad hair day.
Inspired, some say, by electric-circuit diagrams, Beck straightened out the lines, drew only 45- and 90-degree angles, and truncated distances between outlying stations. Then he submitted his unusual schematic rendering to the London Underground’s publicity department.
Officials rejected it.
“They thought it was too radical, and they thought that people maybe wouldn’t be able to understand it,” Renton said.
Undeterred, Beck made a few minor adjustments and tried again. This time, officials decided to give it a chance, printing 750,000 free pocket-size copies in January 1933, with an almost apologetic explanation attached: “A new design for an old map. We should welcome your comments. Please write to the publicity manager.”
No responses have been unearthed yet in the archives, said curator Renton. “We can only assume it was widely accepted and really taken on board by Londoners. And they never looked back.”
The design led to imitations around the world. Within a few years, it was copied by the transit system in Sydney, Australia. The New York subway map of the 1970s also paid homage to Beck’s brainchild.
“It was absolutely revolutionary. I always say it’s probably the best bit of information design of the 20th century,” said London native Mark Noad. “It was his ability to simplify it and still make it understandable that was his great achievement.”