- Citybus's Duple/Metsec Trident carries the Greener Buses livery, as
seen on the KMB Alexander bodied Trident (44406).
The model appears in Corgi's May-August 2001 catalogue.
the new Hong Kong International Airport opened on 6th July 1998,
Citybus introduced a network of routes using the CityFlyer brand name,
to connect the new airport with Hong Kong Island and Kowloon. Fleet No
2301 is one of over 150 Duple Metsec bodied Tridents purchased to cater
for these extra services. It entered service on 13th May 1999.