Tokyo, the mega city, is known for its best telecommunication services.
The secret lies in these tunnels, which has an underground fiber network, known as "Toudo" in Japanese.
It spans a distance of 290 kilometers in Tokyo, and a total distance of 650 kilometers nationwide.
The deepest tunnel stood 50 meters below the ground level.
Japan's first telecom tunnel system constructed nearly a century ago in 1926 is still in use.
The Tunnel securely conceals telecom cables, both copper wires used for generations, and thin optical fiber cables that can transmit grater amount of data.
Also Read
"This tunnel has enough space for a service person to work promptly and continue to increase the data traffic. Also, the tunnel has outstanding durability, it can withstand major earthquakes. Based on these characteristics, the "Toudo" tunnel attracts attentions from the companies seeking a reliable cloud computing service," said Kei Hasegawa, Service Infrastructure Division, NTT Communications Corporation.
Many companies are now adopting cloud computing and expanding to utilize data centers.
The aerial wire is one of the ways to connect cables, but it has weakness against storms and natural disasters.
Pipelines are much secure in underground, but it has very limited in extensibility.
Japanese telecom company NTT provide underground tunnel dedicated to major communication cable to protect from disasters.
Even after the 2011 Great East Japan Earthquake, none of the cable was damaged.
The tunnel is equipped with various safety measures and is monitored round the clock.
Array
"Toudo" tunnel is also directly connected to the latest data center built by NTT Communications," added Hasegawa.
JAL - Japan Airlines operates international and domestic passenger and cargo services to 220 destinations in 35 countries worldwide.
Established in 1951, JAL became the national airline of Japan in 1953.
The company announced "Welcome! New Sky Project" last year and introduced new JAL 777 'Sky Suite' interior featuring newly designed passenger seats.
JAL has always been a solid contender when it comes to in-flight products. The company has spent a lot of efforts on developing their product that the carrier can continue to compete with their Asian counterparts.
The most remarkable statement with the JAL new Sky Suite Triple-Seven is that all the seats are super spacious.
Everything about the economy cabin has been created for the space and comfort to evoke the world's highest standards.
"This is our flagship airplane, new Sky Suite Triple-Seven, embodies our goal being "the most loved, first choice airline group" which Japan Airlines positioned in the Mid-Term Management Plan. We designed this airplane to provide higher feel to every passenger, from the first-class to economy-class. In general, economy class seats are not being developed much, but this time, we decided to develop thoroughly focusing on the economy-class seat which are being used by the most numbers of our customers," said Takehiko Hoshina, Senior Director, Marketing and Branding Division, Japan Airlines Co., Ltd.
JAL's "Sky Wider" seats in economy class have advancements with a remarkable 34 inch seat pitch, which means extra few inches in front.
That realizes much more personal service and a lot more space for passengers.
"Compares to the conventional seat, this new seat has extra space of 10cm for both in front and the width. Therefore, even when the table is been used, you are able to step out directly from the seat," added Hoshina.
Along with accessory pocket and bottle holders, USB chargers and pouches for your iPhone are available in every seat.
There is also a universal power plug outlet for all the seats.
Due to expected growth of demand on its North America and Asia, Sky Suite route has increased its number of connections.
JAL continues to embrace new challenges to further enhance its network as well as the quality of products and services in order to provide customers with more convenience.