Well its much better now than back in the days of steam locomotives and journal bearing trucks which is where the old "hot box" term comes from but diesels and roller bearings can still cause problems when they malfunction and/or break. I know that when the rail grinder train comes through it has a water tank car with it and they spray water down as it passes to prevent brush fires. That said, I have no idea what work train was operating there on Monday, not that it matters at this point sadly.