Qualification certificate
资质证书
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rail transitRail transit refers to a type of transportation vehicle or system that requires operating vehicles to travel on a specific track. The most typical rail transit is a railway system composed of traditional trains and standard railways. With the diversified development of train and railway technology, rail transit has emerged in an increasing number of types, not only distributed over long-distance land transportation, but also widely used in medium and short distance urban public transportation. Common rail transit systems include traditional railways (national railways, intercity railways, and municipal railways), subways, light rails, and trams. New types of rail transit systems include maglev track systems, monorail systems (straddle track systems and suspension track systems), and passenger automated rapid transit systems. In the Chinese national standard "Common Terminology of Urban Public Transport", urban rail transit is defined as "a general term for rapid and high-volume public transportation that is usually powered by electricity and operates on wheels and rails According to the differences in service scope, rail transit is generally divided into three categories: national railway system, intercity rail transit, and urban rail transit. Rail transit generally has advantages such as large volume, fast speed, dense schedules, safety and comfort, high punctuality, all-weather, low freight costs, and energy conservation and environmental protection. However, it often comes with high initial investment, technical requirements, and maintenance costs, and often occupies a large space. Rail transit refers to a type of transportation vehicle or system that requires operating vehicles to travel on a specific track. The most typical rail transit is a railway system composed of traditional trains and standard railways. With the diversified development of train and railway technology, rail transit has emerged in an increasing number of types, not only distributed over long-distance land transportation, but also widely used in medium and short distance urban public transportation. Common rail transit systems include traditional railways (national railways, intercity railways, and municipal railways), subways, light rails, and trams. New types of rail transit systems include maglev track systems, monorail systems (straddle track systems and suspension track systems), and passenger automated rapid transit systems. In the Chinese national standard "Common Terminology of Urban Public Transport", urban rail transit is defined as "a general term for rapid and high-volume public transportation that is usually powered by electricity and operates on wheels and rails According to the differences in service scope, rail transit is generally divided into three categories: national railway system, intercity rail transit, and urban rail transit. Rail transit generally has advantages such as large volume, fast speed, dense schedules, safety and comfort, high punctuality, all-weather, low freight costs, and energy conservation and environmental protection. However, it often comes with high initial investment, technical requirements, and maintenance costs, and often occupies a large space. Rail transit refers to a type of transportation vehicle or system that requires operating vehicles to travel on a specific track. The most typical rail transit is a railway system composed of traditional trains and standard railways. With the diversified development of train and railway technology, rail transit has emerged in an increasing number of types, not only distributed over long-distance land transportation, but also widely used in medium and short distance urban public transportation. Common rail transit systems include traditional railways (national railways, intercity railways, and municipal railways), subways, light rails, and trams. New types of rail transit systems include maglev track systems, monorail systems (straddle track systems and suspension track systems), and passenger automated rapid transit systems. In the Chinese national standard "Common Terminology of Urban Public Transport", urban rail transit is defined as "a general term for rapid and high-volume public transportation that is usually powered by electricity and operates on wheels and rails According to the differences in service scope, rail transit is generally divided into three categories: national railway system, intercity rail transit, and urban rail transit. Rail transit generally has advantages such as large volume, fast speed, dense schedules, safety and comfort, high punctuality, all-weather, low freight costs, and energy conservation and environmental protection. However, it often comes with high initial investment, technical requirements, and maintenance costs, and often occupies a large space. Rail transit refers to a type of transportation vehicle or system that requires operating vehicles to travel on a specific track. The most typical rail transit is a railway system composed of traditional trains and standard railways. With the diversified development of train and railway technology, rail transit has emerged in an increasing number of types, not only distributed over long-distance land transportation, but also widely used in medium and short distance urban public transportation. Common rail transit systems include traditional railways (national railways, intercity railways, and municipal railways), subways, light rails, and trams. New types of rail transit systems include maglev track systems, monorail systems (straddle track systems and suspension track systems), and passenger automated rapid transit systems. In the Chinese national standard "Common Terminology of Urban Public Transport", urban rail transit is defined as "a general term for rapid and high-volume public transportation that is usually powered by electricity and operates on wheels and rails According to the differences in service scope, rail transit is generally divided into three categories: national railway system, intercity rail transit, and urban rail transit. Rail transit generally has advantages such as large volume, fast speed, dense schedules, safety and comfort, high punctuality, all-weather, low freight costs, and energy conservation and environmental protection. However, it often comes with high initial investment, technical requirements, and maintenance costs, and often occupies a large space. |