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At present, there seems to be a default civilized rule on the subway elevator: "go left and stand right". On the one hand, this regulation is conducive to improving the efficiency of elevator traffic, especially during peak hours. The left side is for passengers who are in a hurry, and the right side is for standing passengers, and this clear division of labor can avoid crowding and confusion. On the other hand, such regulations may leave safety implications, for example, the mechanical structure of the elevator may be damaged due to uneven force over a long period of time, increasing maintenance costs. In addition, overuse of the left aisle can also lead to safety hazards.
Recently, some netizens suggested that Chengdu Metro use a loudspeaker to remind and guide passengers to "stand left and right" when taking the escalator. In the long run, "left and right" will indeed have a certain impact on the escalator, due to the load on one side, the chain wear will be aggravated, so it is not advocated, and the ladder height is much higher than the step ladder, walking on the escalator There is a risk of "falling, falling", and may also cause a large area of stampede. In order to ensure the safety of passengers, Chengdu Metro encourages passengers to stay still when taking the escalator, and through voice prompts "Please hold the handrail, pay attention to your step, do not lean on the escalator, and do not look at your mobile phone".
In recent years, Beijing, Shanghai, Guangzhou, Nanjing, Hong Kong and many other places have canceled the "left-to-right" initiative. In 2019, Shanghai Metro also issued the "latest version of the escalator riding instructions", the biggest change of which is to cancel the previous "left and right" advocacy, and replace it with a new "prohibition of walking and running while taking the escalator".
In addition, according to the operation data of Nanjing Metro Operating Company, the long-term "left and right" damage to the elevator is great, and 95% of the elevator damage is caused by the uneven force of the elevator.
Why is it not suitable to move around when riding an escalator? Wu Bin, an elevator expert and senior engineer, said that from the design principle of our escalator, it is completely different from the traditional staircase, because the slope of the escalator is a little higher than the height of the staircase of our daily building mechanism structure, which is not suitable for walking. The "left-to-right" approach is also unreasonable, because it will produce a balance deviation, which will cause the "left" side of the elevator to be relatively lighter, and the right side of the elevator will be a little heavier, which will produce a tilt.
Looking back at the development of the elevator industry:
——Elevator output
From the perspective of China's elevator product output, driven by the continuous development of urbanization, infrastructure investment and construction and the installation of elevators in old buildings, the output of the elevator industry has gradually increased. According to data from the China Elevator Association, the output of elevators in mainland China will reach 1.545 million units in 2021, an increase of 20.5%.
——Elevator consumption
From the perspective of the apparent consumption of elevators, escalators and lifts in China, the apparent consumption of elevators and escalators in China from 2017 to 2021 showed an upward trend, of which the apparent consumption of elevators and escalators in 2021 was 1.4345 million units, a year-on-year increase of 22.42%.
Note: Apparent consumption = production volume + import volume - export volume.
——Elevator market size
According to the data of the "China Elevator Industry Business Yearbook (2020-2021)", from 2015 to 2018, the scale of the mainland elevator market continued to expand, of which the scale of the mainland elevator market exceeded 350 billion yuan in 2018, about 355 billion yuan; In 2020, the market size of China's elevator industry will be about 441 billion yuan. According to the calculation of China's elevator output and average price, the market size of China's elevator industry in 2021 will be about 473.4 billion yuan.
According to the analysis of the Prospective Industry Research Institute, the current Chinese elevator market will become the main growth point of the industry in the maintenance and repair of elevators, the renovation and renewal of old elevators, the installation of elevators in old buildings, home elevators, and special elevators. At the same time, green elevators, intelligent, information-based and high-speed elevators will become the trend of product development.
At the same time, the prospective industry research institute said that with the sustained and rapid growth of the mainland economy, the rapid advancement of urbanization, the improvement of people's living standards, the aging of the population and other factors, the mainland elevator industry is also showing a rapid development trend. It is estimated that by 2027, the market size of China's elevator industry is expected to reach 709 billion yuan, with an average annual compound growth rate of about 6.7%.
Prospective Economist APP Information Group
For more research and analysis of this industry, please refer to the "Market Demand Forecast and Investment Opportunity Analysis Report of China's Elevator Industry" by the Prospective Industry Research Institute.
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