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Assignment analysis, Network: Kittitas Base 2008 <br />2 i I _, I -t---~--i 2 . --··i· ~-~--,.~r ' ! i -Tolerances [ 2 I -r· ! -1 ----Regression <br />2 , •---.j. -+···x I -Target value <br />I ! ! <br />2 . ~ ... 1 I NumObs 90 I ~ AvgObs 625 2 ! -~~ - <br />! l %RMSE 23 <br />2 . ,. % In 93 ci:' l <br />I R2 0.89 ~ 1 r-r I;: Slope 1.04 <br />a.. 1 Ylnt -58.43 ~ <br />~ 1 ... I MeanRelError% 17 <br />~ -.-j <br />2 i ::, <br />,Q 1 . ---t···· i:: ~ 900 i <br />Q) <br />-0 ~ 800 "c <br />700 <br />600 - <br />500 <br />400 <br />200 ~ i <br />200 400 600 800 2 2 2 <br />Observed attribute (Validate) <br />Figure 7 <br />Kittitas County Scattergram for Freeway, All Arterials, and Ramps <br />As can be seen, the majority of the deviations fall between the curves. Other <br />statistics calculated are: <br />A vgObs is the average assignment volume for all analyzed links. <br />%RMSE, the percent root mean square error, a summary statistic representing <br />the average assignment error, disregarding sign, in percent. <br />I(Assignment Errors )2 <br />Number of Links % RMSE = 100 x --------- <br />Average Count <br />Kittitas County, Washington Transportation Model-May 2009 Page 43