X4347, bound for the Super Bowl with the president and guests meets 1-829 at Chatsworth.  For those not familiar with the train numbering system on the SP,
Scheduled trains ran in time slots.  If there was more than one train ready to move during that slot, it would result in sections such as 1-829.  First and subsequent sections would carry green markers or flags with the last section having clear indicator lights and no flags displayed.  The final section would simply be 829.

