JOB SUMMARY: This position is located in Yosemite National Park, in the Visitor and Resource Division. The typical seasonal entry-on-duty period for Yosemite National Park is April to October but can be variable during these months due to weather conditions, project needs, or funding. MAJOR DUTIES: These positions work in Yosemite National Park performing traffic management duties in support of the park wide operations of the Division of Resource and Visitor Protection, law enforcement office. The purpose of the position is to mitigate and manage traffic congestion, facilitate visitor traffic flow around emergency scenes, control parking and provide information to visitors as necessary. Duties: Monitors vehicular traffic levels against pedestrian traffic and controls intersections with regards to safety and the smooth flow of vehicles. This includes vehicular and pedestrian direction and/or management on foot, bicycle or government vehicle in and around intersections and parking lots. Monitors parking lots, directs buses and motor homes to appropriate parking stalls, closes parking lots when full. Explains regulations to park visitors and provides information and advice on park activities and cultural, historical and/or natural resources identification and protection. Drives government vehicles on park roads and/or state and federal highways including outlying areas of the park. This activity includes supporting convoy operations of commercial vehicles, visitors and/or employees through construction areas or other hazardous conditions as directed. Provides traffic control in and around emergency scenes as directed by park law enforcement personnel. This may include helicopter landing areas, search and rescue operations, fire zones and park closures as assigned. Reports to supervisor or law enforcement dispatchers any public use and/or traffic violations or visitor use problems or emergencies via radio communications or in person. Performs other duties as assigned. Yosemite National Park, California, known worldwide for its spectacular natural beauty is the backdrop for this position. Sitting astride the Sierra Nevada Mountains, the park covers 1,182 square miles of varied wilderness ecosystems, from river valleys to alpine meadows to lofty 13,000-foot-high peaks. Yosemite Valley is located 208 miles from San Francisco, 81 miles from Merced, and 94 miles from Fresno. Shopping, medical, postal and laundry services are available in the park. Elevation at the Valley floor is approximately 4,000 feet and 2,200 feet in El Portal. The park is open year-round with the majority of activities occurring during the busy season March through October. Physical Demands: The work demands long periods of standing at a fixed post and/or walking on paved or uneven dirt surfaces. The employee may be exposed to extreme weather conditions, dust, flying debris requiring sureness of balance and knowledge of personal protective equipment. Employee must be able to maintain concentration and situational awareness during stressful situations and while working at full effort to several uninterrupted hours at a time. The employee may, dependent on assignment, circumstances and/or situation be required to perform these duties for long periods of time without rest of relief. Employee must be able to lift traffic control devices weighing up to 25 pounds. Working Conditions: The work is exclusively on dirt, gravel or pavement during the spring and summer seasons. The ambient temperature during these periods ranges from 50 to 110-degree Fahrenheit, with some variations dependent on the elevation of the assignment. Work assignment elevation ranges from below 4,000 feet to over 10,000 feet. Work is primarily on foot in roadways and parking lots, sidewalks, trails with some work accomplished on bicycle or while operating a government vehicle. IMPORTANT: Click the 'Apply for this job' button to view a complete job description.