BEIJING - China Railway Corporation (CRC), the country's rail carrier, updated its service planning diagram Sunday, adding 285.5 pairs of passenger trains nationwide.

According to the new diagram, the CRC now operates 3,142 pairs of passenger trains across the country, with 1980.5 pairs being bullet trains.

The new services came after China overfulfilled its railway construction targets in 2015 as part of government efforts to improve transport infrastructure and stabilize growth.

China put 9,531 kilometers of new rail lines into operation in 2015, while its annual target was 8,000 kilometers.

The country invested 823.8 billion yuan ($126.7 billion) in railways, beating the full-year goal of 800 billion yuan.