University of Oregon North Campus Plan Project #:21562 <br />January 29,2018Page <br />3 <br />Due to the very limited number of studies that use gross square feet to estimate trip generation, we <br />have chosen to use student population to produce this preliminary estimate. The current student <br />population of approximately 21,300 students is accommodated in approximately 6.642 million gross <br />square feet of development or a ratio of 3.207 students per 1,000 gross square feet. Applying this <br />student to square-footage ratio (and assuming it is held constant over time) to the long-range <br />development plan of approximately 1.12 million square feet would suggest an additional 3,600 <br />students could be accommodated. This estimate of additional students is then used to produce the trip <br />generation estimate for the North Campus Plan shown in Table 2. <br />Table 2: 2018 North Campus Master Plan, Trip Generation Summary (Vehicles) <br />AM Peak Hour PM Peak Hour <br />Land Use Category Surrogate Amount Daily Total <br />Total Total <br />Student <br />3,600 1,085 765 7,075 <br />2 <br />Population <br />3 <br />1,000 GFA 1.12M 1,220 1,310 NA <br />1 <br />University (Code 550) <br />Student <br />3,850 5,775 1,125 1,455 805 1,110 7,425 10,075 <br />2 <br />Population <br />3 <br />1,000 GFA 1.2 1.8M 1,310 1,960 1,405 2,105 NA <br />Table 2 also includes trip generation estimates using University square-footage data (although not <br />recommended) for comparison purposes. There are an insufficient number of studies to support a daily <br />trip generation estimate using square-footage. <br />th <br />The researchers that prepared the ITE Trip Generation, 10 Edition, encourage more trip generation <br />studies of the University land use type and suggest that student population may be the best surrogate <br />to rely on in the interim. For this reason, we recommend using student population. A comparison of the <br />trip generation for Research Center in Table 1 with the University (student population) estimates in <br />Table 2 suggests a smaller impact is likely to occur than previously anticipated. <br />It should be noted that no mode split reductions have been taken at this time, although they are <br />warranted. The UO employee and student commute auto mode split is substantially lower than the <br />average employee in Eugene and is also lower than other universities of similar size and community <br />character. It may be appropriate to make such refinements at a later stage in the planning process. <br />Moving forward, we recommend using student population to estimate trip generation for the 2018 <br />Plan and to refine the estimate, based on reported mode split data from UO. We encourage UO to <br />investigate the planned population growth to understand if this trip generation estimate accurately <br />reflects estimated growth. <br />Please feel free to contact us with any questions. <br />Kittelson & Associates, Inc. Portland, Oregon <br /> <br />