We thank Ivan Png for the suggested improvements to Hong Kong International Airport (letter headlined, 'Extend airport shuttle train', South China Morning Post, March 18).
We would like to address the three issues raised by Mr Png: The passenger terminal's internal shuttle train, or automated people mover (APM), is designed to provide high speed transport for passengers between the main hubs within the terminal building, namely the east and west halls.
Given the relatively short distances involved and the high speed at which the APM travels, it would be impractical to extend this service to the southwest and northwest concourses.
Rather than bussing as suggested by Mr Png, travellators have been provided throughout the terminal at the arrivals and departures levels to minimise walking distances. An electric cart service is also available for passengers who desire this service.
The basins in the toilets are placed 900 millimetres from the floor, the accepted international practice. It is assumed that small children using the washrooms will be accompanied by an adult.
Airside trolleys will be provided shortly within the passenger terminal in response to a large number of requests for this service.