毛茸茸xxxx_国产精品77_91精品国产综合久久福利_日本一级色片_欧美一级黄色录像片_一级久久久久久

Welcome to Aigre?

more>>Industry Overview

News

Understand Urban Rail Transit 7
addtime:2022-03-17click:428


Section 7: Monorail Transportation:

Monorail, distinct from subways, light rails, and trams, uses a single track to support, stabilize, and guide vehicles. Vehicles either straddle (cross-seated) or hang below the track.

Cross-seated monorails feature prestressed reinforced concrete beams with steel tracks, composed of beams, pillars (T, inverted L, or gate types), and switches. Vehicles, typically electric trains in four, six, or eight-car formations, use two-axle bogies with nitrogen-filled rubber wheels (16 per train) for running, guiding, and stabilizing.

Hanging monorails suspend vehicles' wheels above the carriage, supported by overhead tracks, driven by traction motors.

Advantages include simplicity, speed, ground traffic independence, minimal space occupation, smooth operation, low cost (1/3-1/4 of subways), easy maintenance, strong adaptability to geography, minimal ground area usage, high elevation (7-19m), ability to utilize median strips, strong climbing ability (100m radius curves, 60‰ slopes), suitability for urban-satellite city travel, airport/port connections, and tourist routes.

Disadvantages include higher energy consumption (15% less than buses but 50% more than subways) and rescue difficulties due to elevated locations. However, safety measures and its significant advantages outweigh these issues.


主站蜘蛛池模板: jizz成熟丰满韩国女人 | 色yeye免费人成网站在线观看 | 国产精品亚洲综合色区韩国 | 四虎影视永久免费在线观看 | 色综合久久精品 | 99久久精 | 女人被做到高潮免费视频 | 欧美大BBBB流白水 | 惊爆摩天楼在线观看 | 国产一区二区不卡在线 | 在线视频观看免费视频18 | 年轻的朋友4韩剧在线观看 亚洲乱码一二三四区 | 情侣偷拍久久 | 久久久天堂国产精品 | 91亚洲精品一区 | 国产高潮久久 | 人妻熟女av | 麻豆美女裸体aaaa片 | 一级少妇性生话片 | 精品国产你懂的在线观看 | 九色精品国产 | 精品在线观看一区二区 | 久久影院午夜片一区 | 九色精品视频在线观看 | 永久免费精品影视网站播放器 | 欧美诱惑一区 | 国产精品美女久久久久久不卡 | 788好吊妞视频gaocom | 国产清纯91天堂在线观看 | 久久只精品99品免费久23 | 国产在线精品一区二区三区 | 中文字幕乱人伦视频在线 | 男女久久久国产一区二区三区 | 神马午夜窝窝 | 国产欧美一区二区三区国产幕精品 | 一性一交一伦一片A片庆乱码 | 一区二区三区四区影院 | 欧美视频精品在线 | 美女内射无套日韩免费播放 | 91老司机福利在线视频 | 一本一道久久a久久综合蜜桃 |