Last night I was running a few trains when I heard a "loud thud" on the far side of the layout from where I was. When I got to the scene of the crash, this is what I found. The thud was caused by the rear end of the leading Dash 8 when it hit the concrete column below the Greyhound Bus terminal.
The maintenance of way department was immediately dispatched to the scene to clear the wreckage and get the mainline back in service. Fortunately the train was operating at reduced speeds as it was approaching the Proviso freight yard and there were no deaths or serious injuries.
The NTSB's initial analysis of the cause of the accident was an Atlas #7 switch that was malfunctioning in electronic non-derail mode. Further details will be announced after they complete their investigation.
Art