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~ <br /> I. <br /> j Units per Development =the unit of measure which represents the size of a development, <br /> ' such asp 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 /> = Th¢ factor used to account for the fact that each trip has an origin and a destination. By <br /> applyin~ 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 <br /> tr##ip. <br /> Nv~rag~ 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 <br /> found ih Table 3. <br /> Eugene Trip End P. M. Peak Vehicle Miles; Percent on Eugene's Arterials and Collector <br /> Streets The portion of the length of all vehicle trips with at least one end point in Eugene <br /> that occhur on Eugene. arterials and collector streets. The percentage does not include travel <br /> in Euge~~ne that occurs on state highways, county roads, or local streets. Analysis of traffic <br /> flow is used to determine the percent of P.M. peak vehicle miles traveled on trips originating <br /> and/or finding in the Eugene Urban Growth Boundary, that occurs on Eugene's arterial and <br /> collector streets the streets that are eligible for cost recovery through SDCs. State <br /> highways and county roads are excluded from this analysis since the City of Eugene is not <br /> responsible for construction costs associated with those facilities. Local streets are excluded <br /> from th$ SDC analysis since they are funded through assessment revenues. <br /> Trip Enc~ =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 pier Trip =Eugene's average one way trip length for arterials and collectors, <br /> represej~ted by the numerator in the above equation (darker gray shaded area), is the <br /> percentage of Eugene traffic eligible for recovery through SDCs. <br /> Street S~~ystem Capacity per Lane Mile =The capacity of a lane at level of service (LOS) "D". <br /> <br /> ~ Becaus$ 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 s'cceptable 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 /> Toad; LOS "D" was established based on several components and is the minimal level of <br /> service lestablished in the City's infrastructure plans (e.g. Transplan) for transportation and <br /> is also the national standard that urban arterial and collector streets are typically designed <br /> to meet.. <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 <br /> peak hour times the cost per trip. All development shall pay based upon the number of p.m. <br /> ~ e~ k hour trips generated. <br /> I, <br /> City of Eugene SDC Methodology Transportation, PageB-2 <br /> <br />