Alleged former security guards targeted the Johannesburg Park Station after their employment contracts were not renewed.
Transnet will on Thursday be launching the longest production train in the world at their depot in Saldanha Bay on the Cape West Coast.
Faulty brakes in the railway tamping machine caused the train incident on Saturday evening in Pretoria which left 57 people injured, with 14 needing thorough medical care.
At least 24 people were killed and 31 injured on Sunday when a freight train carrying stowaways derailed in the Democratic Republic of Congo, police and medical services said.
Tshwane Mayor Solly Msimanga says rail infrastructure in the Pretoria North corridor has been problematic for a while now. He visited the Mountain View Train Station in Pretoria west following an accident on Tuesday morning.