Transurban Group (TCL) reported an interim net profit of $80.9 million in the six months to the end of December 2013. This was essentially flat compared to profit posted the same time last year. During the same period revenue fell by 2.3 per cent due to costs associated with maintenance and tolling systems. However, proportional revenue, which measures income from its toll roads, rose by 13.1 per cent. Watch report here: