Morning bus aircon

after years of faithfully taken the so called ' world class' transport, i came up with a theory which generally describe the temperature of the aircon buses:

The temperature of the aircon is proportional to the temperature outside the bus

have you ever feel the full blast of the aircon in the cold morning?
or sometimes you wish that you can open the windows in the aircon bus in a hot afternoon?

well, so have i!!!

sometimes, i wonder what's the purpose of the aircon in some of the buses or is the drivers trying of help SBS and SMRT to save money. imagine it's already cold in the wee morning and yet the bloody drivers blast the aircon to the max trying to make snow in the bus...
but they dun seem to do so when it comes to the hot afternoon. the aircon temp will be like highest [aka fan] and there are times i really wish to open the windows to have some ventilation. it really gets bad when the bus is crowded and i remember sweating in an aircon bus. hmmm, maybe can't really blame the driver cause they got so used to it that they themselves dun really realised or feel it. so the best is to take train... at least the temp is constant