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METHODOLOGY: <br />City of Eugene Systems Development Charges <br />Appendix B <br />Transportation System Charge Detail <br />1.0 Arterial and Collector Streets <br />1.1 Formula <br />The arterial and collector street component is based upon the cost of increasing the vehicular <br />capacity of these streets. Each lane is calculated to provide a certain capacity. Level-of- <br />service 'D', the standard adopted in TransPlan (Eugene-Springfield Metropolitan Area <br />Transportation Plan), the area's long-range transportation plan, is used as the basis for the <br />calculation. The cost of increasing capacity is based on the average cost paid by the City for <br />each lane mile of arterial and collector streets. Note that the cost calculation excluded the <br />assessable costs and evaluated only the arterial and collector system. Paragraph 1.3 and <br />Table 3 of this Appendix contains a detailed analysis and numerical supporting data of the <br />costs used for the arterial and collector component computations. <br />The impact of new development on the street network is determined by the following Impact <br />Fee formula: <br />(Miles per trip) <br />Average Eugene Trip End <br />T ical PM Peak Vehicle Miles; <br />yp Units 1 x Length X percent on Eu ene ~s Total Street <br />Trips X per X 2 of Metro. Arterial l Col ector System <br />Generated Development Trips Streets X Cost per <br />per Unit Lane Mile <br />Street System Capacity per Lane Mile <br />Where: <br />Impact Fee =The transportation. SDC fee to be collected from a development which <br />represents its equitable share contribution to the public street system. The transportation <br />SDC is calculated by multiplying the cost per trip (indicated by the gray shaded areas) by the <br />units in a development, multiplied by the average trips generated for similar types of <br />development. <br />Trips = A single or one-direction vehicle movement with either the origin or the destination <br />(exiting or entering) inside a study site. <br />Typical Trips Generated per Unit =The number of vehicle trips caused by the development <br />during the hours of peak afternoon traffic (P.M. peak hours). The P.M. peak hour trip rate <br />varies according to land use. Transportation facilities must be built to accommodate the peak <br />demand, thus the use of the P.M. peak hour trip generation rate. Trip rates are to be <br />determined using paragraph 3.0, Trip Generation Rates, of this Appendix B. <br />Units per Development =the unit of measure which represents the size. of a development, <br />such 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 />'City of Eugene SDC Methodology Transportation, -Page B-:1 <br />