Getting stuck in a traffic jam can be one of the most frustrating parts of travelling around a busy city.

Now engineers in China, the world's most populated country, have come up with a way to overcome the problem of getting around in traffic.

Designs for a new elevated bus has been unveiled at a tech expo in China, which will apparently be able to carry 1,200 passengers over the top of cars and let traffic to pass underneath it.

A model of a new elevated bus (pictured) has been unveiled at a tech expo in China, which will allegedly carry over 1,000 passengers over the top of cars, to allow traffic to pass underneath it.

The scale model of the 'Transit Elevated Bus' was demonstrated this week at the 19th China Beijing International High-Tech Expo.

The idea is that passengers sit far above other vehicles on the road, allowing cars to pass underneath.

In a model of the vehicle, it appears to run on a set of fixed rails embedded on the road.

It means the vehicle is more like a cross between a tram and a bus.

Engineers hope the design will increase the availability of the road space, and cause fewer traffic jams than regular buses.

It is also expected to save costs compared to other public transport options, like the subway.

The scale model of the 'Transit Elevated Bus' was demonstrated this week at the 19th China Beijing International High-Tech Expo (pictured). The idea is that passengers sit far above other vehicles on the road, allowing cars to pass underneath

'With a carrying capacity of 1,200 people at a time, the TEB has the same functions as the subway while its cost of construction is less than one fifth that of the subway,' said Bai Zhiming, engineer in charge of the TEB project said in a video interview with CCTV News

'With a carrying capacity of 1,200 people at a time, the TEB has the same functions as the subway while its cost of construction is less than one fifth that of the subway,' said Bai Zhiming, engineer in charge of the TEB project said in a YouTube video showing an interview with CCTV News.

'Its construction can be finished in one year,' he added.

The first tests of the bus are scheduled to start trail operation in Qinhuangdao City, in north China's Hebei Province, in the second half of this year.

This means the buses could be in place by the end of the year.

It is expected to save costs compared to other public transport options, like the subway. The first tests of the bus are scheduled to start trail operation in Qinhuangdao City, north China's Hebei Province, in the second half of this year.