APPLICATION MATERIALS - Laserfiche WebLink

Capital Hill PUD Traffic Safety Analysis (14-020) March 3, 2017 De Ruta Street and Alta Vista Court that will provide access for two new parcels created with the proposal (lots 19 and 20). A site plan is provided as Appendix E. 3.2 Development Level Traffic Volumes and Impacts Based on available national average trip generation rates published by the Institute of Transportation Engineers (ITE) in the Trip Generation Manual, 9" Edition, peak hour trip generation of the entire development site (existing + proposed), with a total of 31 single family detached dwelling units and 12 multi-family apartments, would create a demand of up to 29 AM peak hour trips and up to 38 PM peak hour trips, which would equate to about one new car every two minutes during the peak hours. Since the development does not result in greater than 100 peak hour trips during any one peak hour period, the proposal does not require a traffic impact analysis based on the TIA applicability of City of Eugene Code (EC) 9.8670 which looks at the entire site's highest peak hour trip generation potential. To approximate new daily traffic resulting from proposed development, a reference was made to tube count data collected near Cresta De Ruta Street that indicated the average daily trip generation per occupied dwelling unit is approximately 4.53 trips/unit/day, calculated from an average of 59 daily trips counted and 13 existing dwelling units occupied from Cresta De Ruta Street to the end of Capital Drive (including multi-family and single family residences). The counted trip generation rate is lower than the daily rate provided by the Institute of Transportation Engineers (ITE) trip generation derived rate data likely due to the study area's geographic location and separation distance to retail developments and other attractors that would increase the average daily trip generation potential. Applying the calculated rate of 4.53 trips/dwelling unit/day to the site's potential 37 new dwelling units, the site's contribution to daily traffic would be 168 new vehicle trips. Assuming two existing residences that appear to be currently unoccupied on Capital Drive north of Cresta De Ruta Street are occupied at build-out, their contribution to the daily trip generation would be nine (9) daily trips, and the total ADT of Capital Drive would be 236 average daily trips north of Cresta De Ruta Street, accounting for existing traffic, occupancy at currently unoccupied residences, and build-out of the site. The addition of the new trips will not change the functional classification or traffic character of Capital Drive. 3.3 Pedestrian and Motor Vehicle Accommodations Projected motor vehicle traffic volumes on Capital Drive from Spring Blvd to Cresta De Ruta Street are consistent with a low volume residential street, per Eugene Local Street Plan (August 1996), which indicates the low-volume residential street design criteria for a new street to serve an average daily traffic volume of between 250 and 750 ADT would include a 45-foot right-of- way width constructed with 21 feet of paving to accommodate two 7-foot travel lanes and one 7- foot parking aisle. Low-volume residential street construction is also identified in the plan to provide two six-foot-wide setback sidewalks with a 6'6" planting strip between the curb and the sidewalk. As described previously, an existing curbside sidewalk with approximately two feet of width is currently constructed on Capital Drive from Spring Boulevard to Alta Vista Court. Topographical constraints exist on Capital Drive that prohibit the feasibility of widening the existing roadway to increase the paving width and/or to accommodate ADA compliant sidewalk construction to meet the local street standard criteria that would be applicable to new construction on this section of © Branch Engineering, Inc. Page 18