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<br /> i' <br /> 1.3.1 Linear Section Construction Costs <br /> The two typical sections developed for this analysis are based upon standard <br /> engineering practices, City policy, and polides inducted in the <br /> must recent Council-.,adopted, long-range transportation plan for the Eugene-Springfield <br /> area. <br /> The sttp~orting ~tata`and detailed analysis for;typical arterial and collector sections <br /> used in this Ear~at ~6 fe©t-wide-streets m~thod~olo~y sari tie found <br /> in Table 3 of this Appet?dix 'The supporting'data .i~'eludes estimated cor~structian <br /> ` costs, per~lineal~foot and linear :mile -for typical arterial :and oolle~ including <br /> engine~rirtg end administrative costs, the average number of tapes p+er mfle of <br /> arterial ramd cotlectoir section, the everege assessable~snd non-assess# oust per <br /> fir~~ar foot, ~Sr liruaar mile, and per lane mile. <br /> r <br /> i <br /> . , <br /> • , <br /> 1.3.2 Intersection Construction Costs <br /> The importance of intersections as a component in the arterial and collector street cost <br /> calculation comes from costs which are higher than a linear section of street and from <br /> the City's long standing policy not to assess costs for intersections to adjacent property. <br /> The cost calculations for typical street intersections were based on the lineal foot unit <br /> costs for different 'street widths and typical right-of--way widths for local and <br /> ~ collector/arterial streets. Based on the average number of intersections per mile, the <br /> w{ <br /> intersection cost r lane mile of arterial/collector <br /> ls~(+I~q <br /> 1 <br /> I <br /> !Note that the average number of intersections does not include the downtown grid. It <br /> was judged unlikely that the dense grid system of streets in downtown Eugene would be <br /> repeated elsewhere and thus avoids the potential for overestimating the number of <br /> intersections per mile. <br /> 1.3.3 Traffic Signal Costs <br /> City of Eugene r il~i1:~e~l~t~ie~' +cs~ ~#rs#,±~rt~c~ ~~~~tft <br /> . _ <br /> t+',~ ~:,y, E,~'1Y4>~~~~~~ . ale for a-t~° try: #~e ~~f ~ _ <br /> 1~~ ~~i'~rl~~ed to aocottl=or`vthe portion oft ~`~rt <br /> f>~rsairl~~n fri~m the City's,lacal jurisdiction. Sigrial<~e~t it~ectioi~s <br /> . <br /> ~ on statr~ #'~cgltWe ~ala;irt~sedt;.with l~gene's arterial anal collector. <br /> marts .each <br /> cent at.~,~~ .f€~,-s ~»~l fat purp~~es of SI.~ calcdtation. -{reeords-incticate <br /> ' ' <br /> Pro osed Methodolo ies: <br /> p g City of Eugene SDCs (Effective March 01, 1997) Page C-6 <br /> <br />