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� ® s <br />IMPACT FEE FORMULA <br />Total Cost minus Total Credit equals Net Cost times Discount <br />Rate equals Impact Fee <br />Total Cost equals trip rate times average trip length times <br />new trips divided by 2 plus lane capacity times cost per lane <br />mile <br />— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — <br />Total Credit equals motor fuel credit plus license credit <br />Director Keating advised that Planning and Public Works have <br />worked very closely on this, and some of the variables have <br />changed. The character that has changed the most is the cost per <br />lane mile. Trip rate has changed somewhat because of the fact <br />that the County has done some additional studies plus the fact <br />that staff has expanded the number of uses substantially. <br />Previously, we had a generalized fee schedule, and when new uses <br />have come in, we have had to come up with a particular trip rate <br />for them. Those rates are in place and need to be incorporated <br />into the ordinance. <br />Cornmissioner Eggert asked how they determined those rates, <br />and Director Keating explained that all of the trip rates were <br />determined either by a trip generation study by staff or by using <br />ITE trip generation rates which are standard rates. Most of the <br />time staff used ITE rates, but where we had better information <br />from local studies, we put those in. Staff did not touch trip <br />length or percentage of new trips unless it was for the new uses <br />that were being added, and then we used rates for those which - <br />were consistent with the ordinance in other places. When you <br />block all those variables into the model, that is the number that <br />comes out. <br />P 13 1988 <br />33 <br />BOOK 71 E':: r 166 <br />J <br />