There are lots of questions about boring tunnels, for example "How to bore such a long tunnel?", "Don't they brake a water pipe during construction?" or "What should they do if precious remains are found?"
They don't have to turn up a road when they build the subway because a machine which they use is like a mole. They only have to dig several holes in order to set the machine and it moves about 10 meters a day, avoiding any telephone wires, water pipes or other subway lines. (Sometimes, an electric power or gas company reinforces its facilities, using the space ganereted during subway building.) If a precious remain is found, they make an on-the-spot investigation and protect it.
Mud which is generated when the machine moves is recycling and used for filling the holes or the foundation of track. In latest "Fukutoshin line" almost all the mud was actually recycled. The amount is about 1,700,000 cubic meters, which is equal to one and a half times as much as the volume of Tokyo Dome!
2012年3月7日水曜日
2012年3月1日木曜日
What is accessible subway like?
Many more people taking the subway a day, but everyone can't always take it in the same way. Trains have to become more accessible to people who need help, for example an elderly person.
Guided by the "New barrier-free code", which was enforced in 2006, Tokyo Metro have been increasing the number of barrier-free facilities, like an escalator, elevator, sloap and so on. They have to, not merely qualify a standard which was fixed by law, but also make plans for people to take the subway more confortable and make an effort to carry out them.
Then, what ideas are actually come up? When you enter a station, yellow blocks are laid in order to let the blind walk safely. If you look the ceiling, you can see equipments to guide passengers. As train arriving and doors opening, let's look above them. LCD monitors tell us what station we are in and what is the next station.
Of course, such facilities are not perfect. If you look a perplexed person in a station or train, let's try to help him/her!
Guided by the "New barrier-free code", which was enforced in 2006, Tokyo Metro have been increasing the number of barrier-free facilities, like an escalator, elevator, sloap and so on. They have to, not merely qualify a standard which was fixed by law, but also make plans for people to take the subway more confortable and make an effort to carry out them.
Then, what ideas are actually come up? When you enter a station, yellow blocks are laid in order to let the blind walk safely. If you look the ceiling, you can see equipments to guide passengers. As train arriving and doors opening, let's look above them. LCD monitors tell us what station we are in and what is the next station.
Of course, such facilities are not perfect. If you look a perplexed person in a station or train, let's try to help him/her!
2012年2月26日日曜日
Thinking about global warming.
It is generally said that railroads are eco-friendly transportation. There are several reasons for this.
First, railroads can transport many people at once, while car can only 5 or 6 people. Compareing the quantity of carbon dioxide emissions of railroads with cars, when a person moves 1 kilometer, you can say that railroads exhaust only one nineth amount of carbon dioxide.
Second, the break systems are developed. It goes without saying that when a driver accelerate or decelerete train, it have to control the power of electricity. A train used to take fixed quantity of electricity and if there are a surplus, a train discards it by changing into hot air. These days, however, train can take electricity as needed, so the waste electricity is reduced dramatically.
Furthermore, that's not all. Although latest train generates superfluous electricity when they reduce speed, they can return it to another train or the facilities of station. It is an epoch-making system to use electricity cleverly.
All trains are developed considering avoiding global warming these days. You can take your first step protecting the environment by taking subways.
First, railroads can transport many people at once, while car can only 5 or 6 people. Compareing the quantity of carbon dioxide emissions of railroads with cars, when a person moves 1 kilometer, you can say that railroads exhaust only one nineth amount of carbon dioxide.
Second, the break systems are developed. It goes without saying that when a driver accelerate or decelerete train, it have to control the power of electricity. A train used to take fixed quantity of electricity and if there are a surplus, a train discards it by changing into hot air. These days, however, train can take electricity as needed, so the waste electricity is reduced dramatically.
Furthermore, that's not all. Although latest train generates superfluous electricity when they reduce speed, they can return it to another train or the facilities of station. It is an epoch-making system to use electricity cleverly.
All trains are developed considering avoiding global warming these days. You can take your first step protecting the environment by taking subways.
2012年2月3日金曜日
Persuit of the novelty
These days, trains are designed as different as ever because the technology of manufacturing material, like aluminum or glass, is making dramatic progress.
"We' ve aimed for making novel and distinctive cars.", an employee of Tokyo Metro says. "It is not interesring to make ordinary cars because they are mere transportation. We consider designing cars again and again."
Although there is some restriction based on safety control or technological problems, they design trains with flexible ideas. It is because the subway runs under cities which are sensitive to a fashion, like Shibuya or Shinjuku, that they regard refined and novel form as important.
He also told us that the image of Tokyo as a tourist spot reflects car making. It goes without saying that commuters account for majority of passengers, however, he would like to impress on tourist, especially an incoming, seeing the sight of Tokyo by subway.
Colorful trains of Tokyo Metro are the result of pursuing the newest, best thing in order to love up to various need of metropolis. It is interesting that what does a futuristic car look like.
"We' ve aimed for making novel and distinctive cars.", an employee of Tokyo Metro says. "It is not interesring to make ordinary cars because they are mere transportation. We consider designing cars again and again."
Although there is some restriction based on safety control or technological problems, they design trains with flexible ideas. It is because the subway runs under cities which are sensitive to a fashion, like Shibuya or Shinjuku, that they regard refined and novel form as important.
He also told us that the image of Tokyo as a tourist spot reflects car making. It goes without saying that commuters account for majority of passengers, however, he would like to impress on tourist, especially an incoming, seeing the sight of Tokyo by subway.
Colorful trains of Tokyo Metro are the result of pursuing the newest, best thing in order to love up to various need of metropolis. It is interesting that what does a futuristic car look like.
2012年1月25日水曜日
Subway cars with the most up-to-date facility
The subway of Tokyo, which is called 'Tokyo Metro', has 9 routes, 195.1km network and on average 6,300,000 passengers a day. As they say that 'The power of moving Tokyo', supporting the city's transportation is the first purpose.
As new subway cars are developed, whether they have a practical use is generally regarded the most important, but the cars of Tokyo Metro are all elaborately designed. The underground of Tokyo City has bloomed riotously with colorful trains.
Although subways are taken for granted these days, they appeared as an ultramodern transportation. The subway of Tokyo made a start in 1927 with 2.2 km railway. It was not merely the first subway of Japan but the first of the East and is said people made a long line to take a train. Since then the cars with the most up-to-date facility are developed when every new route was started. All trains have a novel design which is counterbalance to its hign efficiency.
Subway cars also require a lot of special equipment. The use of non-flammable material and an emergency exit are essiencial for fire control. Design or coloring which is not pressure people in undergraound is also important. Besides it subway cars have to pick up speed rapidly because Tokyo Metro, as an infrastructure of the city, has many stations in order that people can take a subway easier. It is because there is a tough standards that innovations were adopted one after another. It is interesting that evidence of this kind of technological challenges appears in the design of a train.
As new subway cars are developed, whether they have a practical use is generally regarded the most important, but the cars of Tokyo Metro are all elaborately designed. The underground of Tokyo City has bloomed riotously with colorful trains.
Although subways are taken for granted these days, they appeared as an ultramodern transportation. The subway of Tokyo made a start in 1927 with 2.2 km railway. It was not merely the first subway of Japan but the first of the East and is said people made a long line to take a train. Since then the cars with the most up-to-date facility are developed when every new route was started. All trains have a novel design which is counterbalance to its hign efficiency.
Subway cars also require a lot of special equipment. The use of non-flammable material and an emergency exit are essiencial for fire control. Design or coloring which is not pressure people in undergraound is also important. Besides it subway cars have to pick up speed rapidly because Tokyo Metro, as an infrastructure of the city, has many stations in order that people can take a subway easier. It is because there is a tough standards that innovations were adopted one after another. It is interesting that evidence of this kind of technological challenges appears in the design of a train.
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