a variety of weather conditions, sometimes at night. some workers are regularly scheduled to be on call for emergency repairs.
in some cases, signal mechanics must lift, carry, and push or pull somewhat heavy objects. they may also be required to stoop, squat, climb, and crawl into small spaces. mechanics must use caution on the job to avoid hazards such as falling from ladders or signal towers, being hit by falling objects, and electric shock.
there is variety in the kinds of signals a mechanic works on, and variety in the location of the work, so the job is rarely boring. in addition, workers in this field can take pride in the 