Why Standing Still on Crowded Escalators Is Actually More Efficient


Standing still on the wrong side of an escalator during rush hour can often illicit angry glances from other stressed out travelers. But now, Transport for London (TfL) is attempting to shift this line of thinking in order to make one of their most crowded Tube stations more efficient.

The Guardian recently reported on an experimental three-week trial run that took place at London’s Holborn station requiring all passengers to stand in place while riding the escalator. The goal wasn’t to annoy grouchy commuters, but rather funnel them out of the congested station at a faster and more efficient pace.

While the idea may seem counterintuitive, concrete data exists to back it up. According to the escalator traffic laws unofficially recognized by subway commuters everywhere, standers must stay to the right side to make room for climbers to pass on the left. This system becomes less efficient when fewer people choose to walk, a factor that's directly impacted by the length of the escalator. With especially tall flights that are often found in subway stations, this leads to commuters reserving half the escalator for a minority of people, which causes more congestion. This phenomenon was observed in London’s Holborn station specifically, where one of the escalators stretches 77 feet long.

According to The Guardian, a 2002 study of escalator capacity on London's underground railway system found that on escalators of about 79 feet (similar to Holborn's), only 40 percent of commuters would even contemplate walking instead of standing still—significantly reducing the escalator's efficiency.

Further data modeling supported this theory. If all commuters were to approach the escalator at the same speed then stand still while riding it, an average of 31 more passengers would be transported per minute.

The trial that took place at Holborn station was enforced by real-life employees instructing commuters to stand still, but if the rule ever becomes permanent, TfL plans to take a more high-tech approach: In place of a human being, a holographic customer service representative will be present to instruct people to stand on both sides of the escalator.

[h/t: Gizmodo]

Live Smarter
These Are the World's 10 Most Expensive Cities

While Americans in big cities may complain about how expensive the cost of living is, according to a new report, places like New York and Los Angeles don’t even come close to the expense of international cities like Singapore. As Travel + Leisure mentions, The Economist Intelligence Unit’s biannual report on the world’s most expensive cities has named the Asian city-state the most expensive place on Earth to live for the fifth year in a row. No U.S. city even cracks the top 10.

The Intelligence Unit’s survey tracks prices of 160 products and services in cities across the world, including food and drink, clothing, rent, utility bills, transportation, and more. It’s designed to help companies calculate cost-of-living analyses for employees traveling and living abroad, but it also just provides an intriguing snapshot into how the rest of the world lives, and just how expensive your next vacation might be. And, of course, it allows you to feel a little better about your own city. Next time you want to complain about your rising rent, New Yorkers, know that residents of Seoul have to pay 50 percent more than you for groceries.

The prices used in the calculations are converted to U.S. dollars, meaning that the whole thing is tied to how much the dollar is worth—if the euro is worth more than the dollar, you’ll need more dollars to buy things in Paris. A weakening dollar is one reason the report gives for the lack of U.S. cities in the top 10 list, even though American cities are becoming more expensive relative to past years. (New York, currently in 13th place, was in the 27th spot five years ago.)

Without further ado, and with our deepest sympathies to their denizens, here are the top 10 most expensive cities across the world:

1. Singapore
2. Paris, France
2. Zurich, Switzerland
4. Hong Kong
5. Oslo, Norway
6. Geneva, Switzerland
6. Seoul, South Korea
8. Copenhagen, Denmark
9. Tel Aviv, Israel
10. Sydney, Australia

[h/t Travel + Leisure]

19 Must-Visit Stops on Mexico City's Metro

About 5 million people ride the Mexico City subway every day—but most commuters don’t realize how much there is to do and see without ever having to go above ground. From piano stairs to a space tunnel, exploring the attractions hidden within the metro just might be the most fun you can have for 5 pesos (about $0.25 USD). These Mexico City metro stations settle the old question once and for all; it’s both the journey and the destination.


Talisman station (line 4) has a mammoth logo for a reason: Mammoth fossils were unearthed during construction of the metro, and you can see the bones—which date back to the Pleistocene—on display there.


space tunnel at La Raza station
Sharon Hahn Darlin, Flickr // CC BY 2.0

How do you make a long transfer fly by? Transform it into a walk-through space tunnel illuminated by a glow-in-the-dark night sky, the highlight of the science museum located within La Raza station (lines 3 and 5).


Viveros (line 3), a station named for the nearby nursery, is in full flower: It was recently given a jungle makeover complete with imitation palms, jaguars, and snakes to raise awareness for the preservation of southern Mexico’s Lacandon Rainforest.


Complement your day trip to the pyramids at Teotihuacan with a stop at the Pino Suarez station (lines 1 and 2), where you can see a 650-year-old pyramid dedicated to Ehecatl, the Aztec god of wind. Tens of thousands of users go through the station daily, making the pyramid one of the most visited archeological sites in Mexico. (Though it's referred to as Mexico’s smallest archaeological zone, the National Institute of Anthropology and History doesn't consider it a "proper" archaeological zone "due to its size and the fact of being located in a Metro Transport System facility.")


Hidalgo (lines 2 and 3) may be the most miraculous of all of Mexico City’s metro stations: In 1997, someone (possibly a street vendor) discovered a water stain in the shape of the Virgin of Guadalupe in one of its floor tiles. The apparition attracted so many pilgrims that metro authorities eventually had to remove the tile, which is now enshrined just outside one of the exits (follow the signs for Iglesia), near the intersection of Paseo de la Reforma and Zarco. And if you happen to visit this station on the morning of the 28th of any month, you’ll be swarmed with pious commuters carrying figurines of Saint Judas Thaddeus—patron saint of delinquents and lost causes—who is venerated at the nearby San Hipolito Church.


No time to visit the vast National Museum of Anthropology? You can still catch reproductions of Mesoamerican statues at the Bellas Artes (lines 2 and 8) and Tezozomoc (line 6) stops.


miniatures on the Mexico city subway
Randal Sheppard, Flickr // CC BY-SA 2.0

Miniature maniacs shouldn’t miss the scale models of Mexico City’s main plaza at the Zocalo stop (line 2). They depict, in tiny form, the metamorphosis of the capital from the Aztec Templo Mayor to the present-day Metropolitan Cathedral. (And bonus points to anyone who can spot the cat who lives in this station.)


The music-themed Division del Norte station’s (line 3) free karaoke corner draws a crowd gathered to watch fellow riders belt out boleros and ballads on their way to work. The unassuming abuelitas laden with bags from the market always have the most impressive pipes.


piano stairs at Polanco station
Victor.Aguirre-Lopez, Wikimedia Commons // CC BY-SA 3.0

Don’t take the escalators at Polanco station (line 7), because the stairs are a giant musical piano keyboard. Finally, here’s your chance to live out Tom Hanks’s piano dance scene from the movie Big.


The Guerrero stop (lines B and 3) is a tribute to the legends of lucha libre, with costume displays and murals dedicated to 45 of Mexico’s finest masked fighters.


The largest bookshop in Latin America can be found in the long passage between the Zocalo and Pino Suarez stations. The underground emporium known as Un Paseo Por Los Libros sells titles from textbooks to manga and also hosts free workshops, lectures, and movie screenings.


murals in the Mexico City subway
Thelmadatter, Wikimedia Commons // Public Domain

Any visitor to Mexico City should check out Diego Rivera’s murals—but on your way, don’t forget to look up at the murals that decorate many metro stations. Particularly impressive are Guillermo Ceniceros’s ambitious chronicles of art through the history of time on the walls at the Copilco (line 3) and Tacubaya stations (lines 1, 7, and 9). On the kitschier side, see how many famous faces you can pick out in Jorge Flores Manjarrez’s I Spy-style mural of pop stars at the Auditorio stop (line 7).


A museum of caricatures located inside the Zapata stop (line 12) is an homage to Mexican cartooning, including plenty of satirical interpretations of the mustachioed revolutionary who gives the station its name.


If Chabacano station (lines 2, 8, and 9) feels unsettlingly familiar, it might be because it was used as a shooting location for the subway chase scene in the Arnold Schwarzenegger film Total Recall. Legend has it you can still spot splashes of fake blood on the ceiling.


Museo del Metro de la Ciudad de México
ProtoplasmaKid, Wikimedia Commons // CC BY-SA 4.0

Has this metro adventure turned you into a super fan? Do a deep dive at Mixcoac station’s (line 12) sleek Metro Museum, where you can learn even more fun facts about the subway’s 50 years of history while you wait out rush hour.


More from mental floss studios