L-series trains

The L-series (Chinese: 临时客车; 临客; Linke) trains are temporary trains run by railway bureaus of the People's Republic of China at times when they are thought to be necessary, such as the Chunyun period.

During the Cultural Revolution, the national railway bureau was taken control from the government, and more trains to meet the needs of revolutionaries to move around the country.

After the downfall of "the gang of four", the national railway bureau was controlled by the government again, and more L-series services had to be made to transport the huge flows of people rushing home during the Spring Festival.

The flow of east and south coming people looking for jobs made it even worse.

Meanwhile, the fourth railway speed-up campaign made more faster services and more L-series trains in a higher speed.