Is it possible for transnet to make economic loss in the short-run? briefly motivate with the aid of a graph

If people start defaulting in using trains, yes, Transnet is likely to make economic loss in the short-run. Transnet is a state-owned enterprise which is considered as  the largest and most crucial part of the freight logistics chain which delivers goods to each and every South African. It includes the following industries: 
-Port management;
-Logistics; and,
-Pipeline management. 

*insert ribbon > table drop-down menu* would allow you to insert a quick table