Arlington Municipal Airport Development Plan Arlington Airport Development Plan | Page 97

they relate to Arlington Municipal Airport and include airfield layout, weather conditions, aircraft mix, and operations. • Runway Configuration – The existing airfield configuration consists of a single runway supported by a full-length parallel taxiway on the east side of the runway and a partial parallel taxiway on the west side of the runway. Runway 16-34 is 6,080 feet long and 100 feet wide. • Runway Use – Runway use in capacity conditions will be controlled by wind and/or airspace condi- tions. For Arlington Municipal, the direction of takeoffs and landings are generally determined by the speed and direction of the wind. It is generally safest for aircraft to takeoff and land into the wind, avoiding a crosswind (wind that is blowing perpendicular to the travel of the aircraft) or tail- wind components during these operations. Runway 16 is utilized most often, estimated at 80 per- cent of the time. The availability of instrument approaches is also considered. While all runways provide instrument approach capability (circling approaches), Runway 34 is primarily utilized in in- strument weather conditions since it is afforded the only straight-in instrument approach proce- dures. • Exit Taxiways – Exit taxiways have a significant impact on airfield capacity since the number and location of exits directly determines the occupancy time of an aircraft on the runway. Based upon aircraft mix, only taxiways between 2,000 feet and 4,000 feet from the landing threshold count in the exit rating at Arlington Municipal Airport. Based on this methodology, the exit taxiway rating is two for both directions. • Weather Conditions – The airport operates under visual meteorological conditions (VMC) approx- imately 93 percent of the time. Instrument meteorological conditions (IMC) occur when cloud ceil- ings are between 500 and 1,000 feet and visibility minimums are between one and three miles, ap- proximately 4.5 percent of the year. Poor visibility conditions (PVC) apply for minimums below 500 feet and one mile. PVC conditions occur approximately 2.5 percent of the year. • Aircraft Mix – Aircraft mix for the capacity analysis is defined in terms of four aircraft classes. Clas- ses A and B consist of small- and medium-sized propeller and some jet aircraft, all weighing 12,500 pounds or less. These aircraft are associated primarily with general aviation activity, but do include some air taxi, air cargo, and commuter aircraft. A large majority of aircraft operations at Arlington Municipal Airport are those in Classes A and B. Class C consists of aircraft weighing between 12,500 pounds and 300,000 pounds. These aircraft include most business jets and some turboprop air- craft. The airport does experience a significant number of operations by Class C aircraft, including the air cargo activity discussed previously. Class D aircraft consists of large aircraft weighing more than 300,000 pounds. The airport does not experience operations by Class D aircraft. • Percent Arrivals – Percent arrivals generally follow the typical 50/50 percent split. Chapter Three - 5