The increasingly violent flooding has raised challenges to subway systems in cities in the world.02: 00/5: 03 Southern subway systems around the world witnessed The scary sights have never seen when weather phenomena become extremely harsh due to climate change caused. Guests panic to save when trapped in the subway in Zhengzhou, China. In London, water spills down the train station stairs. New York City also experienced a similar situation when many people are not shocked by witnessing the image of unusual flooded water at the train station to the waist
. Public communication plays an important role in reducing emissions In big cities. If people become frightened with images of submerged stations, they will transfer using individual cars. This may cause urban areas to be more and more polluted and threatened by overloaded traffic systems, according to New York Times
The image inside the subway is submerged in Zhengzhou. Photo: AFP. Climate Miss Nan Sailah Kaufman, Deputy Director of Rudin Traffic Center at New York University, said: "It's scary. How can we be ready for the next threats? "Some subway systems such as London and New York were designed and built from over 100 years ago. Meanwhile, Trinh Chau City's electricity network is less than 10 years old. However, it was suffering from an unprecedented disaster. The crisis in China has proved that every system, even when using the new and most advanced technology, can be affected. By climate change. "Metro and fixed rail systems help reduce human emissions and are part of the anti-climate change solution", Adie Tomer, expert in the capital policy program Brookings Institute's market, said. However, floods are only a small part of extremely harsh weather types that occur in recent times
Only a few days before the nightmare of the subway flooding in China, floods in Germany robbed the lives of about 160 people. Scandinavia, Siberia and Northwest America are struggled with unprecedented hot waves Yes. Smoke from wildfire in the western United States and Canada made the red sky and cities like Toronto, Philadelphia, New York had to offer health warnings. At New York, urban transport agency invested US $ 2.6 billion in recovery projects after the Sandy storm attacked the city's subway system in 2012. About 3,500 drainage holes, stairs and flood-resistant elevators are upgraded and installed New. Flood water at the New York subway station after the storm Sandy attacked. Photo: New York Times. In a dry day, the subway system pumped about 53,000 cubic meters, mainly groundwater. However, flooding this month showed that the system was still vulnerable. Vincent Lee, technical director of a New York subway system upgrading company, said: "It's really a challenge when Must try to upgrade a very old infrastructure "London's subway net face face similar challenges." Most London's drainage system comes from Victorian (early twentieth century ). This system is unable to respond to the current climate change status, "said Bob Ward, Director of the Grantham Research Institute, said. Sword Solution to learn how to operate underground floods, Researcher Taisuke Ishigaki of Kansai University, Japan has built a bustling subway system model. After that, he simulated a rain with a rainfall about 30 cm. Only in a few minutes, floodwaters entered some entrance to the subway station and flowing down the stairs. Only 15 minutes later, the station yard was filled with more than 2 m. This image was what happened in Zhengzhou. Flood water quickly engulfed passengers inside the carriages. At least 25 people were killed by floods, including 12 people suffocating in the subway. Dr. Ishigaki's rescue was applied to the flood monitoring system of the subway network in Osaka. Special cameras will monitor floods on the ground when heavy rain appears. When the water level is high, this system will activate emergency protocols, blockade entrances that are easily affected by floods. Passengers will be evacuated through other exits. Play has invested in building many infrastructure against flooding. By 2020, Tokyu Railways Group and the Japanese government cooperated to build a giant tank. This tank is capable of storing about 4,000 tons of water, helping Shibuya Ga in Tokyo can avoid floodwaters. "But if water at rivers rise, this system cannot respond", Dr. Ishigaki said . The underground tank system against floods in Japan. Photo: AFP. In the United States, some experts propose another approach, arguing that if the flood condition occurs continuously, the subway protection is not possible. Instead, CH . Dịch vụ:
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