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22 Prob=exp((-.04282)*Y**(.659566)) R2=98.7% 1.0 Probability of Stopping Beyond Y 0.8 0.6 0.4 0.2 0.0 0 200 400 600 800 1000 Distance Y from Extended Runway Centerline (ft) Figure 28. Transverse location model for takeoff overruns. Prob=exp((-.01639)*Y**(.863461)) R2=94.2% 1.0 Probability of Stopping Beyond Y 0.8 0.6 0.4 0.2 0.0 0 200 400 600 800 1000 Distance Y from Runway Edge (ft) Figure 29. Lateral location model for takeoff veer-offs. 5. The equivalent length of conventional RSA is then cal- Accuracy of Models culated: There were five multivariate logistic frequency models, eight aEMAS exponential location models, and one log linear deceleration SRSA = SEMAS = RLF g SEMAS model developed in this study. The accuracy of these models is aRSA considered excellent, with C-values ranging from 0.78 to 0.88 With the equivalent RSA length, the RSA is adjusted for each for the frequency models. The location models had R2 values type of aircraft and is input into the standard location models ranging from 93.9% to 99.8%, and the deceleration model for presented in the previous section. EMAS presented an adjusted R2 of 89%.