backing and maneuvering

Semi's are routinely required to operate in very tight situations. Many times trucks are required to back into loading docks from off the street and will end up blocking traffic for a short time while maneuvering into and around loading docks,  Most tractor trailers are not equipped with back up lights on their trailers.  If you see a tractor trailer with it's 4 ways flashing, chances are they are getting ready to make maneuvers or start backing up. While doing these things, a drivers vision is very limited to only what they can see in mirrors. When making maneuvers such as tight turns and backing up at tractor trailer will require approximately 100 to 150 ft of maneuvering space. It would be very helpful to the driver if you can remain outside of that maneuvering radius.

Turning. Turning a semi is not like turning a car. Again more room is needed for a truck to safely and effectively negotiate turns.  Right turns are routinely more difficult to make because trucks are closer to things like parked cars, street signs, light poles, pedestrians etc...While preparing for a right turn on a very narrow road, trucks will routinely swing out wide to the left prior to making the right turn. Sometimes this means trucks will come all the way out into the left lane in order to set up for the turn. This is especially true when road ways, like city streets, are very narrow or have many objects like fire hydrants, light posts and parked cars lined up on the right side.