KMB staff and passengers expressed concern yesterday at the prospect of airport buses being cut or axed. An airport bus customer service assistant at Tung Chung MTR station said there were about 1,000 peak-hour passengers a day on route S61 and 1,200 on route S64. 'Both buses will never be full because there are two other airport bus routes run by Citybus. But if our bus service is cancelled, passengers will be stripped of the right of choice,' the assistant said. Mandy Tang, a shop assistant at the airport who lives in Tung Chung, said the S61 bus she took was 'rarely full, except for the last bus when many people are coming off duty'. 'This route has to be remain running because it is the fastest bus to and from Tung Chung and the airport,' she said.