Resolution No. 5254 - Laserfiche WebLink

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Transportation System Development Charge Detail Transportation SDC Methodology The transportation system development charge (SDC) methodology is based on a system -wide cost per trip, where the costs associated with meeting future growth needs are divided by the projected growth in trips. The methodology includes both improvement and reimbursement SDC components. Development of the SDC includes the following basic steps: Determine growth in trips Determine growth share of system costs Calculate the system -wide costs per trip Develop SDC rate schedule These steps are discussed further below. 1.0 Growth in Trips To evaluate the roadway capacity needs and the amount of vehicle trips that are generated by growth, the regional travel demand model was utilized. Table B-1 shows the projected growth in the number of trip ends for the 2035 Transportation System Plan period, broken down by trip ends that have both an origin and destination within the City's Urban Growth Boundary (UGB) (internal - internal), and trip ends that have one end outside of the UGB (internal-external & external- internal). Like most infrastructure systems, roadway systems are designed to accommodate peak rates of use, which typically occur during the weekday afternoon period between the hours of 4 and 6 p.m. (the "PM peak"). Therefore, roadway system capacity is typically measured by trip generation during the average weekday PM peak hour. Table B-1 Model Vehicle Weekday PM Peak Hour Trip Ends (within the City's Currently Acknowledged UGB) CITY OF EUGENE SDC METHODOLOGIES, APPENDIX B PAGE B-2 Internal -Internal Internal -External & External -Internal Total Existing Trip Ends 104,128 52,818 156,949 Projected Trip Ends 131,128 66,790 197,918 Growth Trip Ends 27,000 13,972 40,972 Source: Lane Council of Governments EMME travel demand model for the Eugene 2035 Transportation System Plan CITY OF EUGENE SDC METHODOLOGIES, APPENDIX B PAGE B-2