What actually occurs within the trip planning processing when the TfNSWTR parameter is set to true or not included (ie: turned on or off)? There is no real information on the website or in the technical doc about this - the only things stated seem to be:
TfNSWTR: Including parameter enables a number of options that result in the stop finder operating in the same way as the Transport for NSW Trip Planner web site, including enabling real-time data.
By including the TfNSWTR parameter with a value of true, you enable the ability for real-time data to be returned.
Is that all it does?