Union Pacific Coal Train Passes Warning Sign Board; Spotted A KCS Train

Union Pacific train passes a warning board, just like you, railroad crews have signs they have to know and obey. I asked on Facebook what it was and someone said it tells the crew in 2 miles there is a speed restriction or speed restriction for construction or something. It seems as if the train was preparing to slow down/stop after passing the sign
I spotted a KCS train for the first time. KCS (Kansas City Southern)

Here is the YT link in case threespeak isn't workin for you for some reason