6107 BERKSHIRE DR SEPA 016 - 041 Traffic Report 2025-04-14

Everett Safe Streets Traffic Impact Analysis 1. DEVELOPMENT IDENTIFICATION Gibson Traffic Consultants, Inc. (GTC) has been retained to analyze the traffic impacts of the proposed Everett Safe Streets development. GTC is a professional traffic engineering consulting firm registered and licensed in the State of Washington. Brad Lincoln, responsible for this report and traffic analysis, is a licensed professional engineer (Civil) in the State of Washington and member of the Washington State section of ITE. The Everett Safe Streets development is located along the east side of Evergreen Way, north of Berkshire Drive. The development is proposed to consist of 70 units for homeless individuals. The units will be a combination of 1-bedroom and studio apartments designed for single occupancy. The units will be situated in a 4-story building.The development is proposing to utilize the existing driveway that provides access to the Reservoir #3 and the fire training facility. A credit has not been applied for the existing use of the site. A site vicinity map is included in Figure 1. 2. METHODOLOGY Trip generation calculations for the Everett Safe Streets development are based on data collected at Patrick Place, located in Seattle. The distribution of trips is based on existing counts at the surrounding intersections, surrounding commercial and retail uses and anticipated destinations. The City of Everett utilizes a threshold of 50 PM peak-hour trip for requiring level of service analysis. The Everett Safe Streets development is not anticipated to meet this threshold for analysis; however, the following intersections have been analyzed as part of this report based on discussions with City of Everett staff to determine any local impacts: 1. Berkshire Drive at Site Access 2. Berkshire Drive at Rainier Avenue/63`d Street SE The level of service analysis has been performed for the weekday PM peak-hour for the existing conditions, baseline conditions and future with development conditions. Traffic congestion on roadways is generally measured in terms of level of service(LOS)at critical intersections. In accordance with the Highway Capacity Manual, roadway facilities and intersections are rated between LOS A and F,with LOS A being free flow and LOS F being forced flow or over-capacity conditions. The level of service at signalized intersections and all-way stop- controlled intersections is based on the average stopped delay for all entering vehicles. The level of service at two-way stop-controlled intersections is based on stopped delay times for the critical approach or movement(s). Geometric characteristics and conflicting traffic movements are taken into consideration when determining level of service values. A summary of the level of service criteria has been included in Table 1. Gibson Traffic Consultants, Inc. October 2016 info@gibsontraffic.com 1 GTC#16-253