This is medium work requiring the exertion of up to 50 pounds of force occasionally, up to 20 pounds of force frequently, and a negligible amount of force constantly to move objects; work requires climbing, stooping, crouching, reaching, pushing, pulling, grasping, and repetitive motions; vocal communication is required for conveying detailed or important instructions to others accurately, loudly, or quickly; hearing is required to perceive information at normal spoken word levels; visual acuity is required for operation of motor vehicles or equipment, and observing general surroundings and activities; the worker is subject to outside environmental conditions, noise, vibration, and atmospheric conditions. KNOWLEDGE, SKILLS AND ABILITIES: General knowledge of the problems involved in operating a school bus; general knowledge of the geography of the County and the location of streets; skill in the safe operation of a school bus; ability to detect malfunctioning equipment; ability to assist children using patience and understanding; ability to establish and maintain effective working relationships with school officials, public, associates and students.