Here you can see the Tsing Ma Bridge in Hong Kong which is the world's seventh longest span suspension bridge. It has two decks and carries both rail and road traffic which also makes it the largest suspension bridge of this type. The bridge has a main span of 1,377 metres and a height of 206 metres.
The 41 metres (135 ft) wide bridge deck carries six lanes of automobile traffic, with three lanes in each direction. The lower level contains two rail tracks. There are also two sheltered carriageways on the lower deck for maintenance access and as backup for traffic when particularly severe typhoons strike Hong Kong. Though road traffic would need to be closed in that case, trains could still get through in either direction.
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