Caption: Racks, racks and more racks. At about 19:50, CP 137-16 finally backs up to clear the crossing at the west end of Wolverton to reveal the leader - BNSF 4739. UP 7467 was the mid-train DPU by the time the train completed its work at Wolverton. From conversation over the radio, the crew would taxi to London after experiencing a few delays. North Dumfries, ON. June 16, 2022.