Feeder service in Hong Kong

I found this information from Wikipedia. I have simplified it for easy reading.

The Kowloon-Canton Railway Corporation operates 20 KCR feeder bus routes to complement its rail systems.

The routes provide access to and between many KCR stations for thousands of passengers everyday. The fleet comprises of 143 air conditioned buses and provide service for 19 hours every day.

The integrated fare system allows the rail passengers who use Octopus cards to enjoy the free feeder bus services that link many housing estates to the stations.