Chief Executive John Lee said on Tuesday that his officials will work with the Airport Authority, the MTR Corporation and the transport sector to come up with better transport solutions under extreme weather conditions.

He made the remark after thousands of travellers were forced to wait an average of three hours for a taxi to leave the airport on Sunday, when the No.9 typhoon signal forced the suspension of the Airport Express and all bus services.

"What I hope to achieve is a contingency plan which will deal with extreme situations, involving the need for emergency transportation," he told reporters ahead of the weekly Executive Council meeting.

On Sunday, the observatory informed the public 15 minutes ahead of time that it would raise the typhoon signal from No.8 to No.9 at 7pm.

Asked whether the short notice caught people off guard, the CE said the forecaster had done its part given the "limitations with current technology".

"We can learn from our experience with the advanced warning system. We can also look for other possibilities within the current technology," he said.

Lee added that the observatory had repeatedly reminded people that a T9 signal was possible, saying people should’ve already been on the alert.