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i <br /> 'i <br /> Units per pevelopment =the unit of measure which represents the size of a development, such <br /> as thousand gross square feet (TGSF). The unit value is determined by the developing <br /> ~ project's size, and the type of units is set for each land use in Attachment #1 of this Appendix. <br /> I <br /> =The factor used to account for the fact that each trip has an origin and a destination. By <br /> ~ applying this factor, costs are equally assigned between the origin and the destination (trip <br /> ends) and each development should be responsible for only half of the total impact of each trip. <br /> I~ Average Length of Metro. Trips =The average length of all vehicle trips for the local <br /> Springfield-Eugene metropolitan area. The current average length of vehicle trips can be found <br /> in Table 3. <br /> Eugene Trip End P.M. Peak Vehicle Miles; Percent on Eugene's Arterials and Collector Streets <br /> = The portion of the length of all vehicle trips with at least one end point in Eugene that occur <br /> on Eugene arterials and collector streets. The percentage does not include travel in Eugene <br /> that occurs on state highways, county roads, or local streets. Analysis of traffic flow is used <br /> to determine the percent of P.M. peak vehicle miles traveled on trips originating and/or ending <br /> in the Eugene Urban Growth Boundary, that occurs on Eugene's arterial and collector streets <br /> the streets that are eligible for cost recovery through SDCs. State highways and county roads <br /> j are excluded from this analysis since the City of Eugene is not responsible for construction <br /> i costs associated with those facilities. Local streets are excluded from the SDC analysis since <br /> they are funded through assessment revenues. <br /> ~ Tiip End =One trip end is equal to one trip, as defined above. For trip generation purposes, <br /> total trip ends for a land use over a given period of time are the total of all trips entering plus <br /> all trips exiting a site during that period. <br /> Miles per Trip =Eugene's average one way trip length for arterials and collectors, represented <br /> by the numerator in the above equation (darker gray shaded area), is the percentage of <br /> Eugene traffic eligible for recovery through SDCs. <br /> ~I Street System Capacity per Lane Mile =The capacity of a lane at level of service (LOS) "D". <br /> Because of the limitations imposed at intersections, the capacity of a lane at LOS "D" is 675 <br /> vehicles per lane, per hour. The LOS "D" refers to a range of volume to capacity ratios in <br /> which acceptable traffic flows are anticipated. For purposes of identifying future traffic <br /> overloads, streets and highway are considered to have inadequate capacity with level "E" or <br /> "F" load. LOS "D" was established based on several components and is the minimal level of <br /> service established in the City's infrastructure plans (e.g. Transplan) for transportation and is <br /> also the national standard that urban arterial and collector streets are typically designed to <br /> meet. <br /> I <br /> Total Street System Cost per Lane Mile =The average cost of right-of-way acquisition and <br /> ~ construction for one lane mile of street. This figure includes the cost for construction of <br /> streets, intersections, necessary structures (e.g., bridges), and traffic signals. <br /> 1.2 Application <br /> The development charge is based upon traffic generated by each development during the peak <br /> hour times the cost per trip. All development shall pay based upon the number of p.m. peak <br /> <br /> 4 ~ hour trips generated. <br /> I,, <br /> I; May 1, 1997 City of Eugene SDC Methodology Page C-2 <br /> I'' <br /> <br />