Skip to main content
  1. Home
  2. Emerging Tech
  3. Cars
  4. News

Japan’s latest bullet train begins trial runs that will see it reach 248 mph

Add as a preferred source on Google

Japan has started testing the latest version of its high-speed bullet train.

Recommended Videos

Each new generation of Shinkansen, as it’s known locally, brings with it a design even more dazzling than the one that came before, and the new Alfa-X, which stands for “Advanced Labs for Frontline Activity in rail eXperimentation,” is certainly no exception. For starters, check out the extraordinary front car — at 22 meters, Japan Railways’ next-generation bullet sports the longest, sleekest nose ever seen on a train.

The fastest bullet train in operation today travels at almost 320 kmh (198 mph), but the Alfa-X— or E956 Series to give it its official name — will whisk passengers along at a breathtaking 360 kmh (224 mph). During the test phase, however, Japan Railways hopes to push the Alfa-X to speeds of 400 kmh (248 mph).

It’s set to become the fastest commercial train service in the world, though Shanghai’s maglev train, which admittedly uses different technology, carries passengers at an even greater speed of 431 kmh (267 mph).

The high speed of the Alfa-X has been made possible by reducing the weight of the train’s components, Nippon.com reports. Work has also gone into reducing train noise inside and out, and, for an even smoother ride, new vertical vibration dampening devices have been introduced to accompany the existing lateral ones. As for that extraordinary 22-meter-long nose, it’s been designed that way to reduce the pressure waves that are created when entering tunnels at high speed.

A bullet train currently operating in Japan. Trevor Mogg

In a country that has to deal with the constant threat of earthquakes, the Alfa-X also incorporates new “anti-earthquake dampers” that automatically activate in response to strong tremors to stabilize the train’s movement and prevent it from toppling off the track. Bullet trains brake automatically and rapidly when nearby tremors occur, but the new dampers will help to improve stability not only as it’s moving, but also after it comes to a complete stop.

The high-speed Alfa-X will serve routes in the region of Tohoku, east of Tokyo, and north to the island of Hokkaido, though years of rigorous testing mean it won’t start carrying paying passengers until 2030.

Japan is also developing a high-speed maglev train. Using powerful magnets for levitation and propulsion, the train has already reached speeds of 603 kmh (375 mph) in testing, though a commercial service isn’t expected to launch until 2027 at the earliest.

Updated on May 13, 2019: Added new images and information on the start of tests.

Trevor Mogg
Contributing Editor
Not so many moons ago, Trevor moved from one tea-loving island nation that drives on the left (Britain) to another (Japan)…
A new startup wants to fix the military’s working-dog shortage with cloning and gene editing
Promising pitch, plenty of unanswered questions about the dogs.
a new startup wants to fix the militarys working dog shortage with cloning and gene editing warhound featured image

Military working dogs charge into places the rest of us would flee. So, I understand why anyone would want to breed tougher, healthier dogs for the job.

Warhound, a new startup from Colossal Biosciences co-founder Ben Lamm and Anduril co-founder Palmer Luckey, has stepped out of stealth with $200 million to clone and gene-edit working dogs for American troops, police departments, and emergency services (via TechCrunch).

Read more
AI can describe a picture, but it still struggles to understand blind users
A University of Maryland study finds that Be My AI often buries useful answers in lengthy descriptions, leaving blind users to work harder to get the information they need.
Blind Man using walking stick

AI can describe a picture, identify objects, and answer questions about what a camera sees. But when a blind user needs a quick answer, getting an entire spoken essay about the scene isn't exactly helpful. Researchers at the University of Maryland (UMD) have found that AI-powered visual assistance can leave blind users doing too much work to get the information they actually need.

The study, titled Say It My Way: Exploring Control in Conversational Visual Question Answering with Blind Users, examined how people interact with Be My AI, an AI-powered feature of the Be My Eyes app. The researchers found that users often received lengthy descriptions that didn't adequately address their immediate goals, forcing them to ask follow-up questions or find ways to steer the AI towards a more useful answer.

Read more
Etsy cracks down on AI slop listings. Everyone else needs to take note.
Now every platform must decide what counts as handmade.
Etsy featured image

Platforms tend to shrug off AI clutter until it threatens what they sell. For Etsy, that thing is trust in the maker.

To protect that, Etsy has banned AI-generated how-to guides and listings made entirely by bots. Most sellers must show at least one unretouched photo of the item (via Etsy Seller Handbook).

Read more