This is the machine that they are using to clean up the large and crusted accumulation along the roadsides in Halifax. The long line of trucks behind it are for carrying away the snow. When I saw this I took a six block detour so that I could get in front of it for a shot. I parked, moved towards a decent position, and a few moment before I took the shot they broke their sheer pin! Good shots really are a combination of good planning and good luck; apparently you need both :-)