Workers from the Albany fire department and Amtrak stand next to a bulldozer which caught fire and then traveled along railroad tracks from Railroad Avenue to behind the First Prize Center in Colonie. The burning bulldozer caused damage to the tracks and is delaying passenger rail trips this evening Tuesday, Aug. 12, 2014 in Colonie, N.Y.  (Lori Van Buren / Times Union) Photo: Lori Van Buren