A local deputy to the National People's Congress has formally proposed speeding up immigration procedures at the Shenzhen border.
Cheng Yiu-tong, chairman of the Federation of Trade Unions, has sought support from other deputies to propose a 'one place, two procedures' system at Lowu.
He proposed putting immigration facilities for Hong Kong and Shenzhen in one building so travellers do not have to queue twice to cross the border.
Out of 36 local deputies, 27 have signed a letter of support. Mr Cheng will submit his proposal to the NPC Standing Committee.
He said the number of travellers between Hong Kong and Shenzhen had soared to 75 million in the past year.
In the past three years, the total number of travellers had increased by 10 million each year.