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TABLE 3
<br />~~ I ransportatlon Systems Development Charge Analysis ~I
<br />1. Analysis of Transportation System
<br />Eugene/Springfield metropolitan average vehicle trip length 4.38
<br />Eugene trip end peak vehicle miles; percentage on Eugene's arterial and collector streets 0.35
<br />Total lane miles of arterial and collector system, excluding turn lanes [arterial = 59.4°~; collector =40.696 ] 404.12
<br />Average number of lanes per mile of arterials and collectors 3.26
<br />Eugene average one wa tri length for arterial and collectors miles er tri) 4.38. 0.35 * '/: 0.7665
<br />2. Arterial and Collector Street System Analysis (Linear Mile Costs):
<br />Existing level of service "p" for Roads; number of vehicles per hour (capacity per lane mile) 675
<br />Linear Section Total Construction Costs:
<br />D Typical collector street width 46 feet s Typical arterial street width 66 feet
<br />~ Typical collector construction cost per linear feet $209.19 ~ Typical arterial construction cost per linear feet $299.66
<br />n Total cost per linear mile, 46' collector
<br />[ $209.188 * 5,280 linear feet per mile] $1,104,513 D Total cost per linear mile 66' arterial
<br />[ $299.265 * 5,280 linear feet per mile]
<br />$1,582,194
<br />Average Linear Section Costs:
<br />n Average construction cost per linear mile
<br />[ ($1,104,513 *.406) + ($1,582,194 * .594) ] $1,388,256 n Average construction cost per linear foot
<br />[ $1,388,256 / 5,280 linear feet per mile]
<br />$262.93
<br />~ Average non-assessable cost /linear mite [53.9°,6) $748,270 n Average assessable cost /linear mile [46.1 °~] $639,986
<br />s Average non-assessable cost per linear foot
<br />[ $748,270 / 5,280 linear feet per mile ] $141.72 ~ Average assessable cost per linear foot
<br />[ $639,986 / 5,280 linear feet per mile ]
<br />$121.21
<br />Assessable and Non-assessable Costs:
<br />a Non-assessable cost per lane mile {excludes
<br />administration and engineering charges} :.,
<br />[ $748,270 / 3.26 (average # of lanes per mile) ]
<br />$229,531 n Assessable cost per lane mile {excludes
<br />administration and engineering charges}
<br />[ $639;986 / 3.26 (average # of lanes per mile) ]
<br />$196,315
<br />n Non-assessable administration/engineering
<br />costs applied [ $229,531 * .25 ]
<br />$57,383 ~ Assessable administration/engineering costs
<br />applied [ $196,315 * .25 ] $49 079
<br />'
<br />~^ 'Xatal`~ort aa~~e~sabl~ ~+~st,p~r lai'i~';~(~~l't~~~ti~~
<br />'" '`•~ ~ $21);631 „ + ,$~57,3$.J~~ ~'~ +"'
<br />,,.:~$'Z$6,8'1~;,: ~- Total Assessable Cost per lane mile
<br />[ $196,315 + 549,079 ] $245,393
<br />Intersection Costs (based on the linear foot unit costs and the average number of intersections per lane mile):
<br />~ Cost per lane mile {excluding administration
<br />
<br />and engineering costs }
<br />$26,355 ~-" Cost er lade mile
<br />p { ineludrng eng+neering 1
<br />admen+strat+on Ms~st~ ,} [ $26,3fiti +;(5~6;36b ' U.26) )
<br />$32,944
<br />Traffic Signal Costs:
<br />n Signalized intersections in Eugene system 144 a Total # intersections with traffic signals 198
<br />~ Signalized intersections, joint with state system 54 D- Eugene equivalent signals [ (54 / 2) + 144 ] 171
<br />a Percent signalized intersections per lane mile
<br />[ 171 / 404.12 ] 0.4231 D Adjusted signalized intersections per lane mile
<br />{with downtown high density reduction factor}
<br />0.35
<br />a Average signalization cost per intersection
<br />
<br />{includes administration & engineering charges}
<br />$165,000 :-- Sigr~all~ation cast-per lane mile of arterial
<br />„
<br />ctt[{ectc~rs [ $765,Ot)t~ 0.35,~~
<br />$57,750:
<br />Bridges. and Other Structure costs:
<br />a Past project costs -small structures, short span bridges {'/: of bridge inventory} $6,483,908
<br />~ Past project costs-Ferry St. Bridge and Ferry Street Bridge overpass [ $2,502,958 + $4,274,688 ] $6,777,646
<br />~ Administration and engineering costs added to past project costs [ ($6,483,908 + $6,777,646 ) * 0.25 ] $3,315,389
<br />a Total costs for past projects, bridges and other structures [ $6,483,908 + $6,777,646 + $3,315,389 ] $16,576,943
<br />~';..AX~rag~ ~~~tl~'~f [arr;~+`tM?~[~.'~>~~l',~i'r[~8~#~Is~rttS~t~il'`~?~', itt~]~±1~$~ ~I~rt~it1. ~~:l~.t? ~?h~rg~~ [ $10,~~6,aa~;~ aoa,i~,~:] '$41,Q20
<br />Arterial and Collector Street Light Construction Costs:
<br />a Standard # of street lights per vehicle mile (capacity per lane mile) 27 Cost per arterial street light $4,300
<br />a.Average street light cost pe,r trip [ ('U.7t36S 127) *$a,300`} $122AT
<br />Tal;al Cast. per Lane Mils of Street System, [ $286;913+'$32,944;'+ $57,750 + $41,020.] '$418,627,;
<br />TOTAh.STREET;SIISTEM;:C. OST.PER TIjIP ;(wlth`;liigk>lting ($;'122AOT) + ((pw7665 / 675) ; * $41.8,62?` )]. $597.45
<br />3. Off-Street Bic cle Path Anal sis:
<br />Total estimated population (1995) 121,905 Total number of trips per person 1.311
<br />Existing standard (LOS); lighting per 1,000 persons [401ights x 6.90 mile = 276 total lights; (276 / 27.65 total path miles)/121,905] 0.0819
<br />Cost per mile off-street path lighting ['$3,000x40 ] $120,000 'host per persoh off-sf`reet lighting t~o.p814/l,ooo)k120,ooot $g;g
<br />Existing standard (LOS) for bicycle path miles per 1,000 persons [ 127.65 miles of path / 121,905) x 9,000] 0.2268
<br />Cost per mile of off-street bicycle path $350,000 Cost per person off-street patft ((t12T68 M.4tlt1)«350,000 [ $79;39`
<br />Tt~'>'f141~'BIC''Y!~'I*~ti~'ATF`# CQS~,PfF~~'RIR'y~~~id i~at~f U ta`x;' ;eak ... ~ $9:83 +.'..$79,39 / 1.319, `$68,0:5:
<br />4. Summary of All Transportation System SDC Components:
<br />Cost per Street System Component; per trip $597.45 Cost per off-street bicycle path component; per trip $68.05
<br />TC?,~AL SDG,p;.Ef~ T)3tA,:':. cgtil .Qrtent~,la?clucla It F%tKrlr ec,a~ts ; , ~ :,, , :;: ~. _, ,rt ,~
<br />~,~a. $397 4S +>$1313;Q'S ~ $665'49
<br />May 1, 1997 City of Eugene SDC Methodology Page C-5
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