Hong Kong’s sole deputy to the country's top legislative body, Starry Lee, said on Sunday she's proposing efforts to further streamline border-crossing arrangements between Hong Kong and the mainland.

Lee spoke to reporters before flying to Beijing to attend a five-day meeting of the National People’s Congress Standing Committee that starts on Monday.

She said she has written to authorities on the mainland to push for measures that make cross-boundary travel smoother.

She noted that traffic is now very heavy, with 45 million visits by mainlanders to the SAR last year and many Hong Kong residents heading north on weekends and holidays.

“Mainland authorities have announced that checkpoints will introduce separate screening for large and small luggage. I hope this can be rolled out gradually, and as soon as possible, at different crossings," she said.

"I will also raise concerns about holiday traffic jams on the Hong Kong-Zhuhai-Macau Bridge and urge the customs authority and relevant departments to give the issue close attention.”

Lee said the five-day meeting has a packed agenda, including deliberation of 18 pieces of legislation and briefings on 13 reports, many of which relate to Hong Kong.