Developing railwayferry bridge to achieve versatile ways safely and rapidly across rivers is an important section of railway bridge securities.
研制铁路渡轮，实现多重手段迅速、安全跨越深水江河，是铁路桥梁保障的重要组成部分。
2
Railwayferry system includes port, ferry station, connecting railway line, and backward technical station.
铁路轮渡系统包括港口、轮渡站、铁路引线和后方技术作业站。
3
A study was made on maximum gradient of ferry trestle bridge for Yanda Railway. The principle of max. gradient computation is described and the formula for computation of maximum gradient is derived.