Trains ‘to replace planes’ within 20 years
Are they the future of travel? Britain, yesterday, announced its new railway. Meanwhile, engineers are designing “space travel on Earth” to replace planes with clean, super-fast trains.
The UK, yesterday, gave the green light to the new HS2 trains. Running between London and Manchester at 224 mph, they will be the fastest in Europe. Critics say it will destroy the countryside, cost a fortune, and take forever to finish. Boris Johnson says we must look to the future and “dream big dreams”.
“Trains are humanity’s best bet to replace planes. If we are ambitious, we can do this within 20 years,” said one expert yesterday.
Some of the ideas will, literally, take your breath away.
The AeroSlider aims to replace intercontinental flights, darting through magnetic hoops at 500 mph. Suspended above the ground, trains as long as three football pitches would be like “moving buildings”, complete with offices, parks and gyms.
Too slow? The fastest trains currently use magnetic levitation to reduce friction.
But to go even faster, engineers are designing vacuum tunnels with all the air sucked out. Like underground spaceships, these trains could cross the Atlantic in one hour at 2500 mph. Because of the time zone difference, they would arrive four hours before they set off.
These trains won’t come cheap, but it’s not just the money people are worried about.
The faster we travel, the more time it takes to stop. This is great news if you live in a megacity, but could leave the rest of us feeling less rather than more connected.
So, are trains the future?
Of course not, moan the critics. This obsession with speed and everything bigger, better and faster, is what got us into the climate crisis we are now in.
How uninspiring, others say. From Stephenson’s Rocket to the Tokyo Bullet Train, locomotives are about inspirational invention and the romance of train travel. We must ditch cars and planes in the next 20 years if we are to meet targets for reduced CO2 emissions.
- For the trains of the future, is speed the most important thing?
- On a piece of paper, design the ultimate train of the future. How is it powered? What is it like inside? Use the expert links and think big!
Some People Say...
“Neither a wise man nor a brave man lies down on the tracks of history to wait for the train of the future to run over him.”Dwight D Eisenhower (1890-1969), 34th president of the United States
What do you think?
Q & A
- What do we know?
- The UK was the first nation to develop a rail network, extending across 24,000 miles of tracks. In the 1960s, this was vastly reduced so that the remaining railways could be upgraded. But these too are now outdated, with trains overcrowded and delays and cancellations commonplace. With roads and runways also at capacity, the government must decide which form of transport to invest in. And its pledge to be “carbon neutral” by 2050 means it must focus on more environmentally-friendly forms of travel.
- What do we not know?
- Many people are suspicious about how much these projects will cost and how long they will take: a current London rail project is years behind schedule and billions of pounds over budget. Others debate how environmentally-friendly high-speed trains will be. However, the biggest row is about the path of the new train line and where the stations will be. A station may be a huge benefit to a local town, but the train will inevitably pass many more places without stopping.
- Green light
- Governments love announcing “new” building projects. So much so that they announce them over and over again. This is the seventh time HS2 has been given the green light and will probably not be the last.
- High Speed 2 will be the UK’s second high-speed railway, following HS1 that links London with the Channel Tunnel. The largest infrastructure project in Europe, it is expected to cost £100 billion and take 10 years to build.
- Magnetic levitation
- Maglev uses magnets to elevate a train above the tracks and move it along. This removes the friction of the wheels against the track, making the train go faster.
- Air also creates friction and drag, which is why planes are designed to cut through the air. In a vacuum, there is no air and, therefore, no friction to slow objects down.
- Cities of 10 million or more people. They are becoming more common and more important, but critics argue that these big transport projects neglect smaller cities and towns.
- Stephenson’s Rocket
- One of the very first steam trains designed by Robert Stephenson in 1829.
- Bullet Train
- Japan was the first country to develop a high-speed train network to boost economic growth. In 50 years and 5.3 billion passengers, it hasn’t had a single fatality or injury, making it one of the safest modes of transport on the planet.