1. aerialrail way; viaduct; overhead railway
2. elevated railway
3. suspension railway（磁懸浮鐵路、列車）
4. sustained railway
例句：
1、These elevated-road schemes of his have eaten up too much capital.
他的這些高架鐵路計劃吃進了太多的資金。
2、The elevated railways are being replaced by buses and subways.
高架鐵路正被公***汽車和地鐵所取代。
3、Elevated Lines, LRT Systemand the Construction of a Transportation Centre
城市高架鐵路、輕軌運輸系統和客運樞紐建設
4、Key Points for Quality Control Supervision over Viaduct on Urban Light Rail Line
城市輕軌鐵路高架橋監理質量控制重點