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27 Cliff 2=20ft 2 =20ft x x 44=320ft =320ft y Figure 35. Effective RSA for analysis. 3. Obstacle 1 is located closer to the runway end, and aircraft craft wingspan. Without this simplification, a different safety speed is higher at this point than that at the location of area configuration would be required for each aircraft, greatly Obstacle 2. increasing the time to do the analysis. Using the ADG wingspan reduced the process to six steps, one for each ADG. The analysis will provide the probability that the aircraft will A second simplification was also necessary to reduce the overrun the runway and the incident will have severe conse- time to perform the analysis. Although the obstacles are cat- quences, thus providing an estimate of risk. egorized according to the maximum speed to cause severe consequences, each type of aircraft will have a different max- imum speed. However, it would be very time-consuming to Additional Simplifications apply these differences in the calculations. Therefore, the Additional simplifications were necessary to implement the maximum speed in the proposed approach depends only on approach. One such simplification was the use of maximum the type of obstacle rather than the interaction between the aircraft design group (ADG) wingspan instead of the actual air- obstacle and the aircraft.