(1) Why have taxis and buses been exempted from paying toll fees for the Gauteng Freeway Improvement Project; (2) whether the vehicles of welfare organisations have also been exempted from paying toll fees; if so, (a) where and (b) when was this decision made public; if not, why not; (3) whether he intends exempting such vehicles from paying toll fees; if not, what is the position in this regard; if so, what are the relevant details?