The bullet train runs up to 180, and the high speed rail runs up to 300, mainly because the tracks a

The speed can be faster, but the speed is limited for safety reasons. Just like the speed limit of a car, a car of any price can exceed the speed limit, and the speed limit is for safety.

Xue Baoqin Xiaoluo, Douguan (Doutong).

First of all, the safety factor, in the operation of high-speed rail, the line spacing of the railway line is very important, the distance is close to the two cars when they interact with each other, and the window glass will be easily damaged. More importantly, the rail is prone to deformation due to excessive force, and if the error between the line spacing exceeds 2 mm, it is easy to cause the vehicle to derail and the car to be destroyed.

At present, the line spacing of most high-speed rail tracks is 5 meters to meters to adapt to the speed of 300 kilometers per hour, which means that if the speed of high-speed rail is even applied to 420 kilometers per hour, it will produce huge safety risks.

The second is the economic cost, the air resistance coefficient of high-speed rail operation increases in a square relationship with the speed, and the air resistance brought by the speed of 300km h has been 80%, that is, it takes 180 kg of force to pull 100 kg of things. If the speed is increased again, the resistance will increase, and the electricity consumption will also increase, which is not economically cost-effective.

The last point is operational efficiency, and high-speed rail operations must not only be able to run, but also stop. Wang Mengshu said that the fundamental purpose of speeding up is to save running time, but if the speed is saved on the road for 3 minutes, it is fast, but the time to stop completely will be relatively longer, thus losing the meaning of speeding up.

The above content refers to Encyclopedia - High-Speed Rail.

High-speed rail refers to railways that run at a speed of 250 to 350 kilometers per hour, while the National Railway Administration of our country refers to EMU trains with a speed of 250 kilometers per hour and above, or passenger dedicated railways with an initial operating speed of not less than 200 kilometers per hour, as high-speed rail.

The south is hilly and mountainous, while Fujian Province has a complex topography, with continuous hills and mountains, and is also interspersed with many river valleys, mountains and basins. Because Fujian Province is located in the middle of two large mountain ranges, the terrain is generally high in the northwest and low in the southeast, and the two mountain ranges are not connected to each other, and there are complex terrains such as river valleys, basins, hills, platforms and coastal plains, so it is also quite a test for the construction of high-speed rail.

The speed of high-speed rail can reach more than 350km per hour, as far as I know, the bullet train is 250km per hour, and the speed cannot reach 350km per hour.

If the model is designed with EMUs, if the speed reaches 350km/h, it is mainly due to various weather and road conditions, and there will be potential safety hazards in the highest construction.

Why is it that in some places the highway is not 350 kilometers per hour, but only 250 kilometers per hour?

There are several reasons for this, the first reason is that in some places it is mountainous, the road in the mountain is relatively curved, and her ravines are relatively large, his speed is too fast, and there is a possibility of danger, and the second reason is that the design speed of the road is not designed to be 350 kilometers per hour, but only 250 kilometers per hour, so his speed cannot be raised, and he cannot be lifted.

This is related to the high-speed rail line.

If the terrain is flat, it's okay to drive faster, but if there are more mountain roads and more holes, the speed can only be slowed down.

In addition, the state stipulates that the speed of our high-speed rail is not allowed to be too fast. Too fast and prone to accidents. The speed of most high-speed railways is still quite fast, which can fully meet our travel requirements. It is the most important thing compared to smooth and safe operation.

In some places, the speed of high-speed rail cannot reach 350 per hour, and it can only be 250, because some railway electrification transformation or transformation has not been completed, and some railways were built relatively early, and the specifications have not reached the design speed of 350 per hour.

Because the speed limit of different road sections is different, the high-speed rail with a design speed of 350 per hour does not mean that the whole journey is 350. Some sections are designed to be 250 or even lower. When passing through these sections, the high-speed rail will adjust its speed.

Because the concept of high-speed rail is defined as a speed of 250 km h and above, a speed of 250 km h in some provinces is also the normal driving speed of high-speed rail. And we ordinary people also know that the speed of the car should also be adjusted according to the road conditions, and the same is true for high-speed rail.

The 350 speed of the high-speed rail is only the peak speed, and it is easy to reach 350km h when the middle section is running in a straight line.

But the railway is not just a straight line, it is not forever, and sometimes it depends on the weather. Big detours, as well as the speed will be reduced appropriately before entering and exiting the station. When the weather is bad, it will also slow down appropriately.

There is also a situation that cooperates with the deceleration of the vehicle dispatch in the section.

In some places, the speed of high-speed rail can not reach 350km/h, only 250km/h, because the road section it passes through is relatively complex and the road section is relatively steep, so its speed can only be 250km/h to ensure safety.

This is a local speed limit policy, high-speed rail in fact, its speed is strictly regulated by the state, or it depends on the specific local control policy.

Hello, those high-speed trains with a speed of 250 hours are mountainous areas! 350 hours is the plain area.

Slower speeds are cheaper too!

It's a problem with the railroad, and there are places where the railroad can't meet the standard, or the speed limit is like that, and you're sure you're doing high-speed rail.

Because of the high-speed train with a speed of 350 kilometers per hour, the turning radius needs to be 7,000 meters, but if it is 250 kilometers or 300 kilometers per hour, the radius only needs to be about 4,000 meters, which is a very big difference.

For terrain conditions such as the Qinling Mountains, the design speed of 250 kilometers per hour is also for the sake of safety, but also to save the cost of construction.

In some places, their high-speed rail uses the railway line of ordinary railways, so there is no way for high-speed rail to reach the actual speed of 350, but in southern cities, they are professional high-speed rail lines, and the speed can reach 350.

The design speed of high-speed rail is 350 kilometers per hour, and the speed in many places is only 250 kilometers per hour, indicating that some places have their special geographical environment limitations, if the speed is too high, it will cause danger to the vehicle, danger, and the safety of passengers, so the speed will be reduced.

This situation may occur on mountain roads, and there are some detours where the speed of high-speed rail generally cannot be raised.

The speed of the high-speed rail cannot reach 350km/h, only 250km, which should be caused by road conditions. Under normal circumstances, in plain areas, the speed of high-speed trains will reach 350km/h.

The road conditions are different in various places, 250 is already very fast, plus the road is more congested, it needs to be dispatched.

This is affected by the design of high-speed rail, and not all high-speed trains are the same design, the speed must be fast and slow, and some terrains cannot be driven too fast, and there will be dangers.

In some places, the speed of high-speed rail cannot reach 350 per hour, only 250, it may be that the distance between stations is relatively short, and high-speed rail needs to brake before it reaches the maximum speed.

There must be reasons for that, such as quality, for example, in order to ensure safety, these are possible, especially in large cities, maybe faster, because big cities are very good in terms of technology and finance, quite rich, so big cities should be faster.

Every place is different from place to place, because of environmental reasons, geographical reasons, wind direction problems, and it is impossible to reach a speed of 350 per hour all the time. For example, when you're driving, you can't be 80 yards the whole time.

The speed of the high-speed rail you said is only 350 and only 250 per hour, and the area you are talking about must be Shandong, the population distribution in Shandong is too dense, and there are many traffic roads, which is the reason why the high-speed rail is only 280 kilometers per hour.

This is determined by the geographical conditions of a certain place. It's not that all places can reach 350's, some places can only reach 200 speeds. This has a lot to do with the leakage.

Because the distance between stations is short, the high-speed rail should be considered to subtract at the beginning, which is set up by comprehensively considering the distance, speed and other reasons, if it is a long distance, it will generally be about 300 kilometers, the speed is reserved, and the safety is more guaranteed.

The 350 speed of the high-speed rail is only the theoretical maximum speed, which requires a certain amount of room for speed, and it needs to be in good road condition. If the distance between the two places is close enough to speed up, or if the road conditions are not good, the speed will be set to run at a slightly lower speed.

In 2004, China got its wish to obtain the most wanted Velaro EMU technology, this train is one of the most stable and fastest trains in the world, able to reach a top speed of 403 kilometers without any modification, China's CRH3A EMU is actually a localized Velaro.

After the most advanced EMU technology from Japan and Germany, in 2008, China's first self-designed high-speed railway with a speed of 350 kilometers per hour, the Beijing-Tianjin intercity high-speed railway officially began to operate, which marks that China has actually gradually mastered the high-speed rail technology from the four major international high-speed rail giants, and China's vigorous promotion of high-speed rail construction has finally produced rich results, China's high-speed rail operation mileage has reached 10,000 kilometers, covering a population of more than 1 million cities.

In addition to the high-speed rail with a speed of 350 kilometers per hour, China has successfully explored the key technologies and parameters of the high-speed rail system with a speed of more than 400 kilometers per hour, and began to make further progress on the basis of the technology of Western countries, and began to carry out the research and development and design of domestic and independent high-speed rail, and even carried out the research and development of maglev trains with a speed of more than 600 kilometers per hour.

There must be. High-speed trains are generally between 250 and 350 per hour. Now high-speed rail can still increase the speed per hour, but for the sake of safety and safety, it is not set so high.

If high-speed rail wants to increase its speed, then its operating costs and manufacturing costs are relatively high. If these costs go up, then naturally our high-speed rail fares will go up. So after weighing all the aspects, it basically settled between 200 and 300.

In this way, the cost is balanced, which is beneficial to all aspects. Of course, in the future, according to the development needs of all aspects, it is also possible to build high-speed railways with a speed of more than 300 kilometers per hour. At this time, the specific operation method was formulated according to the specific situation, but at present, the speed has not been improved.

If the speed of the high-speed rail is too high, there are potential operational safety hazards, so it will basically not exceed 350 kilometers per hour at present.

Of course, there is a speed of 300 kilometers per hour. Because the definition of the State Railway Administration of China is: a new passenger dedicated line railway designed to run 250 kilometers per hour (including reservations) and above, and the initial operating speed is not less than 200 kilometers and hours.

The main corridor of high-speed railway adopts the standard of 250 kilometers per hour and above (the topographic geological and climatic conditions can be appropriately reduced in difficult areas), among which the railway with dense population and urban areas along the line, the economy is relatively developed, and the railway through the megacity can adopt the standard of 350 kilometers per hour. In principle, the regional railway link adopts the standard of 250 kilometers per hour and below. In principle, intercity railways adopt the standard of 200 kilometers per hour and below.

In addition to the high-speed rail with a speed of 350 kilometers per hour, China has successfully explored the key technologies and parameters of the high-speed rail system with a speed of more than 400 kilometers per hour, and began to make further progress on the basis of the technology of Western countries, and began to carry out the research and development and design of domestic and independent high-speed rail, and even carried out the research and development of maglev trains with a speed of more than 600 kilometers per hour.

Yes, the speed of high-speed rail is generally 300km/h. The State Railway Administration of China defines China's high-speed rail as a dedicated line railway designed to operate at a speed of more than 250 kilometers per hour (including reservations) and an initial operating speed of more than 200 kilometers per hour, and has promulgated the corresponding "Design Code for High-speed Railway". High-speed rail refers to a railway system with high design standards and can be used for safe high-speed travel of trains.

The concept is not limited to tracks, nor does it refer to trains.

The world's first official high-speed rail system was the Tokaido Shinkansen, which opened in 1964, connecting Japan's three major metropolitan areas, including Tokyo, Nagoya, and Osaka, and contributing to Japan's rapid development. Its design speed is 200 km h, so the initial speed standard for high-speed rail is 200 km h.

China's high-speed rail is currently limited to national railway lines, and although the Shanghai maglev track line is designed to reach a speed of 430 km h, which exceeds any national railway speed standard, it is not included in the scope of conventional high-speed railways because it is not managed by the national railway department and is not connected to the national railway network.