One thing, if you don’t say it, you may not realize it at all: there are seat belts on airplanes, there are seat belts on cars, but there are no seat belts on the 300km / h high-speed railway you take
why
the answer is:
there are no seat belts on high-speed trains all over the world
this is not a joke, it is the result of “evolutionary” selection after the birth of high-speed railway
globally, Japan’s Shinkansen was opened in 1964, which has a history of nearly 50 years
it is only in recent years that high-speed rail has entered the life of the general public in China, so don’t “see less and make more mistakes”< However, the real reason why the high-speed railway does not have seat belts is as follows: first, the high-speed railway has extremely strict control over stability when the high-speed railway starts, whether you are chatting with friends or looking down at your newspaper, it is difficult for you to realize that the vehicle has started without the rapid change of scenery and light outside the window a passenger once tested that a cigarette he stood on the small table of the Beijing Shanghai high-speed railway could not fall down when the train was accelerating from a standstill to 300 km / h another scene is also impressive. A child set up a building with more than ten storeys of building blocks on a 300 km / h high-speed train and clapped his hands to his grandfather happily high speed rail is subject to two tracks, but also benefits from two tracks on the one hand, China’s high-speed railway has strict control on acceleration control to ensure the stability of longitudinal movement; on the other hand, the high-speed train is firmly controlled by two rails, especially the ballastless track used in China’s high-speed railway has strict control on track smoothness to ensure that the train can not have large lateral and vertical vibration so under normal circumstances, you can walk freely on the train without fixing yourself in your seat all the time secondly, in the event of an accident, the injury caused by the seat belt is far greater than the potential protection this is the most important and fundamental reason. 1n Europe, the application of high-speed rail is relatively early, and there are many researches on the active and passive safety of high-speed rail through a large number of investigations, the European Committee for railway safety and standards found that in the event of a major train accident, passengers are more likely to be injured when they are tied to the seat, mainly because passengers who are tied to the seat by the seat belt are more vulnerable to the damage caused by the collapse of the car structure, because they can not effectively avoid< 1n 1998, the most painful high-speed railway accident happened in Germany. the research results show that improving the design of seats on high-speed railway can effectively improve the safety of passengers in train accidents, rather than installing seat belts at present, the seats commonly used in high-speed railway in the world are “anti-collision” safety seats, which can be designed to ensure that when the head or knee of the rear passenger collides with the back of the seat forward, it can collapse and deform in time to prevent the passenger from getting stuck two point seat belts are usually used on airplanes through the analysis of six typical longitudinal collisions, the European Railway Department found that the seat belts restrain the passengers on the seats, which is true to avoid the injury caused by the passengers being thrown out, but the high-speed railway train is huge, which is very unlikely, and the seat belts also bring great danger to the passengers the conclusion of the analysis shows that 11 people were rescued because of the fixed function of the safety belt, but 88 people were on the fixed seats, and lost the space to escape. From the number, the disadvantages of using the safety belt on the train are greater than the advantages, especially the high-speed railway thirdly, in reality, high-speed rail passengers are not willing to wear seat belts one of the most important reasons why people choose high-speed rail instead of aircraft is that the high-speed rail is spacious and runs smoothly. People are used to moving freely in the car and visiting friends in the car, so few people are willing to take the high-speed rail and fasten their seat belts comfortable high-speed rail seats make people refuse to be “bound” there was an experiment in Europe. 1n 1999, Finland carried out a test on a commercial high-speed railway, and 271 sets of safety belts were installed in three carriages of the train first of all, they conducted a survey in cars without seat belts. Only 26% of the passengers said they would like to use seat belts if they had them. The reason given by the passengers is that it is uncomfortable and goes against the characteristics of train travel in the end, Finnish railways stopped promoting seat belts on trains and concluded that people were reluctant to use seat belts on trains some people will ask, in this case, why don’t airplanes and cars design safety seats instead of using seat belts to restrain people first of all, the aircraft also uses safety seats, which can effectively protect people’s safety aircraft safety belt is designed to prevent turbulence of air flow. Aircraft flying in the air, unlike the stable operation of the train on the track, so the situation encountered is more complex the passive displacement of the human body caused by the change of acceleration and the severe turbulence caused by the complex climate all need the help of the safety belt in severe cases, the strong turbulence of up and down rotation will throw the unbelted passengers to the cabin roof of the aircraft and then fall to the seat or floor, so the aircraft needs seat belts the main purpose of safety belt installation is to prevent secondary collision when a car collides or encounters unexpected emergency braking, a huge inertial force will be generated, causing the driver, passengers to collide with the steering wheel, windshield, seat back and other objects in the car for a second time, which is very easy to cause serious injury to the passengers, and even throw the passengers out of the seat or out of the car the safety belt can tie the driver and passenger to the seat, preventing the second collision, and its buffering effect can absorb a lot of kinetic energy, reducing the degree of injury of the driver and passenger now you finally understand why there is no seat belt on the high-speed rail