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growth. The port£on of cost based upon ·xisting ~:lp ends repres'en~s <br /> <br />The se~Solog~ used ~o date~uine ~d ASa consisted ~ de~e~in~q ~e <br />~luence ~e ~rcAdoc ~d ~ t~ps rode ~ln ~e C~nc~. ~e analysis <br />m ~ucC~ vi~ a sysC~ o~ ~Cer pc~ k~ ~ ~S1 <br /> <br />~ci~c Or,ge Coun~ a~lca~i~ ~ a~e ~ ~ se ~e S~S2 <br /> <br />The eodel subdivides Orange Coun~ and portions o~ ad~acant Los Angeles <br />Coun~ int~ more ~han S00 ~r·~lc analysis sones (TAZ). The model sari- <br /> <br />variables lUCh as po.DuLat£on, ef.~.L=yment, ~n~ and number o~ ho'~sing <br />units. These trips ere ~hen distributed ~rom each sene ~o all o~her ZOnes <br />b~ a well-established procedure. The uodel then dete~.uines ho~ many si <br />'chase person ~,ripe will tr·wl by lute, and ~ln&lly atsigns ~-hese auto <br />t~ips om~o · h~gh~y ue~k. ~ s~l~n~c da~ us~ ~n the ~a <br /> <br />Using the tr~.p-uaking data described above, a select 'link analysis <br />(pro, rrna UROAD~) ~as per,or,ed ~o deter·ins ~ number o~ corridor related <br /> <br />zone (TAZ). ~ese <br />~e ~ TA~ ~p e~s (acCec~a~ h~ghvays p~us ~cc~:) ~o ~pu~e ~e <br /> <br />~rcefl~ges <br /> <br />The influence ·re· £or each 0£ the corridors is quite pronounced at the 4% <br />ams greater ~-:ip ,,se level aa shcnm on the exhibits. The iMc~ern o£ <br />omrr'idcr usage baommes erratic below the 4~ level. <br /> <br />The deter~irdtion of ~e AOB ~or each o£ the transportation corridors was <br />~sed p~l~r~ly on ~e a~e ~r~do~ ~luen~ areas. H~e~r, <br />~oll~lng ~l~io~l cri~e~ tire used ~ su~lmn~ the ~cen~ <br /> <br />2South Orange County Circulation Study {BCCCS) travel de~amd £o~ecas~inq model <br />developed by ~¢i~/Transpor~ation lalanne, rig ~lvis£on. <br /> <br />~ is one o£ the ~..~uter programs in UTPS. <br />£1exible highway sesign~ent and analysis program. <br /> <br />It is · co~prehensive <br /> <br /> <br />