Capital Hill PUD Traffic Safety Analysis (14-020) <br />March 3, 2017 <br />1.0 EXECUTIVE SUMMARY <br />1.1 Project Description <br />The Capital Hill site is within the urban growth boundary (UGB) of Eugene and is located south of <br />Hendricks Park between Capital Drive and the Ribbon Trail Park. Approval of the proposed land <br />use applications will allow development of a residential subdivision near the north end of <br />Capital Drive on existing tax lots 100, 200, 201, 300, and 400 of map 18-03-04-31. When <br />completed, the site will consist of 35 total tax lots created from the five (5) existing parcels that <br />are minimally developed with three existing single family detached dwellings and three attached <br />dwelling units (multi-family). The approvals will allow existing development to remain and will <br />result in construction of up to 37 new residences, which will likely be a combination of single <br />family detached and multi-family attached dwelling units. <br />1.2' Traffic <br />The development will not result in an increase in new traffic that would trigger a typical traffic <br />impact analysis per Eugene Development Code (EC), section 9.8650. To address neighborhood <br />concern regarding retention of the existing width of Capital Drive off site, the owner has chosen <br />to provide this traffic safety analysis to demonstrate adequacy of the roadway with an unbiased <br />opinion from a licensed professional traffic engineer. Based on the ITE trip generation rates, the <br />existing site contributes on average approximately five (5) PM peak hour trips and up to 49 <br />average daily trips. To verify trip generation consistent with ITE rates, a tube counter placed on <br />Capital Drive immediately north of Cresta De Ruta Street indicated that the 13 existing occupied <br />dwelling units generate an average of 4.53 vehicle trips/day/occupied dwelling unit. The <br />suburban location away from commercial/retail development will result in fewer trips generated <br />by the site. Using the collected data and the derived rate, the trip generation increase from the <br />proposed development would likely include 168 daily trips, assuming full occupancy of 37 new <br />dwelling units. <br />1.3 Operational Safety <br />An operational safety analysis performed for Capital Drive from Spring Boulevard to the north <br />end near the site considered crash history, geometric features, and the existing level of <br />development with regard to the potential increase in traffic. The safety analysis indicates that <br />existing facilities are adequate and appropriate to meet the existing level of traffic in addition to <br />the potential post development traffic demand. <br />1.4 Results <br />One existing infrastructure deficiency was discovered off-site that is not created or significantly <br />impacted by the proposed development. There is a severed sidewalk between Alta Vista Court <br />and the end of Capital Drive where there is a trailhead at Hendricks Park. The existing sidewalk <br />does not complete a connection between Spring Blvd and the park trailhead. In the City of <br />Eugene, private residences are responsible for frontage improvements on local streets abutting <br />their private property. Constructability of a sidewalk may encroach on frontage property owners' <br />frontages that do not appear to be currently developed to codified standards for setback(s) to <br />fences, retaining walls and other privately owned facilities. Any constructed new sidewalk would <br />not be capable of meeting ADA standards due to existing longitudinal slopes that exceed 5 <br />percent along the roadway alignment and construction located at an existing top of bank. With <br />or without the development, it is recommended that the City work with property frontage <br />owners on Capital Drive to construct a minimum 2-foot width sidewalk where not present. <br />© Branch Engineering, Inc. <br />Page I 1 <br />