(1) Whether any research has been done to determine the impact of weather conditions and in particular the effect of ambient temperatures on the operations and networks of the Gautrain; if so, (a) what did these studies reveal and (b) what are the further relevant details; (2) whether the speed at which the Gautrain may travel is affected in any way by a fluctuation in ambient temperature; if so, (a) how is this monitored and (b) how does it affect the safety of the train and its passengers?