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1.3.1 Linear Section Construction Costs <br />The two typical sections developed fior this analysis are based upon standard <br />'engineering practices, City policy, and policies included in the <br />. most recent Council-adopted, ong-range transportation plan for the Eugene-Springfield <br />area. <br />The supporking data and detail~ti analysis for~typical arterial and collector-sections <br />used in this fartafysis-were-46-ar~c# 66-€oot~nric#e-sti°eetsj inetfiod'ato~~t''Ga~n ~e;~aurtd <br />' rr;Table!3 of this Appendix: The supporting data l~~tt~tles $sll~m~tt~~i +~t~~struction' <br />:. . . <br />costs per Ir~ieal foot antl 3near mile for typical arterial and toft~tbr~, lrtcludin'g <br />engineering and admmrstrative casts; the average number of lams ~r';mite of <br /><: <br />~rrtenal anti coilectarsectierx, the, average assessable:and: non=ass~ab1~ cost per <br />linear fot~tk,per iin~ar ~tfe`,.agd per lane Mile:. . <br />e-st~ee~- <br />. ~ , <br />per'-r~tif"~z~«-~t . <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 #rom <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 />intersection cost per lane mile of arteriaVcollector # ir~ac~s~~~p~iifat'03t u <br />., <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 />~'tieG of Eu ene ~...:i[~~k of~ to'tai> : dun :~f°~rtters~e~t~i~~~,`~#fi~ ~d~.<ii~tt~. <br />:..,....~,,. h g .:.:.:.... ::.., ....~ . ,......_. ~ . ,,...~.: ~ .. <br />.. <br />tr~ff;~,:~ ~~ts;:~yrt1, .;~~.:;, ~aL~°'IF~f':af;[=:SIE:~p~t~~'s ~i l~t~":: <br />jtJCl+3~ eaCO~d~-i~t~e±~:ta,~kc~b~#t~rtt~e ~o~tfriri' of s#~~' .;:;~i~~ra~`~~yr <br />.: . <br />~urrsdriot~se~taiy #~t~tn'~h~.:Crt~r'~°to~k~ris~(~tion: Srg~ial~Ze~~i~'f,~r~;tpttc~s <br />on state~trrghways wt~c#~ x~~tei~s!ect..~rith Eugene's arterial and cotttpr'`str~ea eaeti - <br />ceunt as ore f~atf:aj'i~:;~i~nal';fo~` purp+~aes Grf' SDC ~calculatian :;-Ereear~- ~~i~te <br />Proposed Methodologies: City of Eugene SDCs (Effective March 01, 1997) Page C-6 <br />