
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】
Train station platform ramen store closes its doors on half a century of history in Tokyo
Studio Ghibli adds new Mother’s Day gift sets to its anime collection in Japan
We asked our Japanese team of writers how they deal with seasonal allergies in Japan
Sushi Push Pops aiming to be Japan’s newest sakura season snack sensation
Virtual idol Hatsune Miku redesigned with look that adds new elements and brings back old ones
Is Daiso’s microwave Japanese rolled omelet maker worth your time and money? [Taste test]
Starbucks Japan opens new Kyoto store in Place of Scenic Beauty
Visiting Japan’s one-and-only, and only-for-a-limited-time, Dragon Ball noodle restaurant[Photos]
Japanese Prime Minister once criticized deploying military to fight Godzilla
Say hello to Japan’s new generation of adults, fresh from Kitakyushu’s 2023 seijinshiki ceremony
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Starbucks Japan opens new cafe and art gallery in top Tokyo tourist neighbourhood
Is Japan’s Crab-shaped Cup Ramen Timer worth the hype?
Pizza Hut Japan teams up with creator of one of the country’s best kinds of ramen for ramen pizza
Komachi Shokudo: Japanese mum’s-style cooking for breakfast, lunch and dinner in Tokyo
Starbucks Japan releases a new Cream Puff Frappuccino for a limited time
The top 10 graduation songs in Japan as chosen by current Japanese high school students
Pikachu and Eevee become handmade Lladró porcelain sculptures to celebrate Pokémon’s 30th birthday
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
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
Starbucks Japan releases new drinkware and goods for Valentine’s Day
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
Japan’s newest Shinkansen has no seats…or passengers [Video]
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
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