
The bluetooth system has been designed to help pregnant women secure a seat on the train.
For such a polite and thoughtful society, one thing that often baffles visitors to Japan is the reluctance of passengers to relinquish their seats on the train. There may be several explanations for this, related to societal rules which respect order in regards to queues, and the fact that elderly passengers who dislike having the “old” tag slapped on them have berated schoolchildren for giving up their seats for them. However, when it comes to pregnant women, seated passengers should know to give up their seats as a common courtesy.
▼ Despite this request in the priority seat sections of train carriages in Japan, it’s never guaranteed that anyone will give up their seat.
To make sure people are aware of their condition, expectant mothers wear a pink-and-white “Baby on Board” keychain given to them by their local clinics and also available from train station offices. Despite standing in the priority seat section and prominently displaying the keychains on their bags, however, it’s never a certainty that someone will be nice enough to give up their seat for them.
▼ According to a 2014 survey, more than 60 percent of Japanese men said they had never heard of the “Baby on Board” maternity mark badges.
Considering all these factors, the new “Pink Light” system trialled in South Korea recently might be a perfect fit for the Japanese transportation network. The set-up requires women to carry a sensor that sends a wireless signal which activates a pink light located in the priority seat section, alerting passengers to the fact that there’s a pregnant woman nearby. The non-waterproof pendant sensor has a battery-life of at least six months and works best when carried outside of pockets, which makes them better suited to being used on bags.
▼ There’s no excuse for not knowing what this symbol represents.
The system, which was tested over a five-day period in the city of Busan by 500 pregnant women, came about as a joint collaboration between local businesses and the city council, with the Mayor, Suh Byung-soo, expressing his support for the comfort and care of pregnant women using local transport. The viability of the project and its future remains under wraps for now, but with a dedicated website and pendant applications forms currently available online, we hope to see this project expand to other countries like Japan in the near future.
To see exactly how the system works, take a look at the short video below.
Source: Pink Light, BBC News
Top Image: YouTube/Dynamic Busan
Insert Images: Transportation Bureau (City of Yokohama), Mokosoft, YouTube/Dynamic Busan
[ Read in Japanese ]




Messaging app LINE experiments with service to help pregnant women find seats on trains
Should healthy young men sit in Japanese trains’ priority seats for the elderly and pregnant?
Video of foreign diplomat riding in Tokyo subway priority seat sparks manners debate【Video】
10 times Japanese train passengers aren’t so polite【Survey】
Tokyo government teams up with Japanese rapper to promote roller coaster subway system【Video】
Japanese beef bowl chain Sukiya’s 2026 Smile Box lucky bag basically pays for itself
What’s inside the McDonald’s Japan fukubukuro lucky bag for 2026?
The meaning of the mandarin and 6 other Japanese New Year traditions explained
Sukiya beef bowl chain makes Japanese New Year fun with limited-edition fukubukuro
KFC Japan unveils the Sweet Potato Pie for Halloween
Green tea chocolate-covered potato chips arrive in Japan! 【Taste test】
What is kasshayaki, the Japanese street food only one prefecture is lucky enough to love?
Kura Sushi adds new cake party train to conveyor belts at select restaurants
This gachapon capsule machine dispenses real Akoya pearls, with certificates of authenticity
Calbee Potato Chips pouch impresses us and makes us want more chips
Starbucks Japan ready to get Year of the Horse started with adorable drinkware and plushies【Pics】
Hayao Miyazaki says Happy New Year to Studio Ghibli fans with new art for Year of the Horse
7 great places to see Mt. Fuji from without having to climb it
We found possibly the quietest Japanese-style hotel in Tokyo’s bustling Shinjuku district
Cup Noodle tries an authentic Jiro-style ramen, but something’s not quite right
Hello Kitty Choco Egg figures are an adorable trip through three periods of Japanese pop culture【Pics】
Japan’s oldest largetooth sawfish in captivity back on display in Mie Prefecture
Cyberpunk anime meets traditional culture in Ghost in the Shell gold leaf Japanese changing screens
The best Starbucks Japan Frappuccinos we want to drink again in 2026
We revisited Sweets Paradise after a decade to see if Japan’s dessert buffet still delivers
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Tokyo considering law requiring more trash cans following litter increase in heavily touristed area
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Tokyo event lets you travel back in time, for free, to celebrate 100 years since Showa era start
Sanrio theme park in Japan announces plans to expand into a Sanrio resort
Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
Stamina-destroying “Paralysis Noodles” are Tokyo’s newest over-the-top ramen innovation
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Japan’s deadliest food claims more victims, but why do people keep eating it for New Year’s?
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
Four things our new-mother reporter felt riding the Tokyo subway with her baby
10 types of people Japanese women hate sitting next to on public transportation【Video】
42 reasons why we love riding the rails in Japan
Leave a Reply