我国四大干线提速前后的列车重量、速度、密度分析

Analysis on Train Weight, Speed and Density before and after the Train Speed Increased on the Four Main Lines in China

阐述了我国铁路京广、京沪、京哈、陇海四大干线提速前后的列车重量、速度、密度的变化状况,据此对今后的发展提出了设想。

It describes the variations of train weight, speed and density before and after the train speed increased on the four main lines of Beijing- Guangzhou, Beijing- Shanghai, Beijing- Harbin and Lanzhou -Lianyungang and puts forward the imagination for future development.