Train goes through the centre of a 19-storey block of flats in China's 'Mountain City'

• A station was built into the block of homes in Chongquing, in south-east China 
• Residents can hop on the train at Liziba station on the sixth to eighth floors
• The heavily built city houses 49 million people packed into 31,000 square miles 

By Fionn Hargreaves For Mailonline

Published: 20 March 2017

A light railway track has been built to go through a hole in a residential 19-storey building in China. 

The city of Chongqing in the south-east of the country has a population of 49 million packed into 31,000 square miles, causing urban planners to look creatively at solving space issues.  

A special railway station was built into the block of houses, set into the sixth to eighth floors. 

A light railway track has been built through a 19-storey block of flats in a bid to solve the space crisis in the city of Chongqing, China

City planners built a railway station in the building, from the sixth to eighth floors. Residents can hop on the train from their own Liziba station

Residents can hop on Chongqing Rail Transit No.2 at their own Liziba station.

Even though they are living in close quarters to a busy train station, any noise has been muffled by special equipment. 

To homeowners in the complex, the sound of the train is designed to be as disturbing as the noise from a dishwasher. 

By doing this, planners avoided having to take the whole building down to make way for the train tracks.  

A city transport spokesman said: 'Our city is very heavily built upon and that can make finding room 

for roads and railway lines a real challenge.' 

The port city of Chongqing is one of the four municipalities in China and lies along the banks of the river Yangtze.

Even though it is a densely populated area, it is nicknamed the Mountain City because it lies around deep swathes of forest and hills.