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MEMORANDUM
Date: July 11, 2017 TG:1.16532.00
To: Keith Schreiber
From: Dan McKinney, Transpo Group
Subject: Renton Fire Station #15 Trip Generation
The purpose of this memorandum is to provide a trip generation assessment for the proposed
Renton Fire Station #15. Specifically, this document identifies daily and peak hour trip generation
associated with the fire station based on employees, visitors, and emergency calls.
Project Description
The proposed Fire Station #15 is located in the City of Renton at 1404 N 30th Street and consist of
one single building: a single-story fire station totaling approximately 7,500 gross square feet. Site
development includes an access drive, fire apparatus aprons (front and drive-thru rear aprons),
employee and public parking areas, pedestrian access walkways, and associated landscape
areas. The proposed schematic concept includes two apparatus bays in conformance with
program for height, width, and length. The bays have drive-through capability. Apparatus support
and station office functions are located directly adjacent to the apparatus bays. The western
component houses the dining/kitchen/day room with direct access to outside and the back of the
house includes training room functions, gear storage and bunking rooms.
The addition of a new fire station will provide improved response times for fire and emergency
services in the Kennydale neighborhood and the Renton Regional Fire Authority service area,
relieving some of the current load placed on Fire Stations 11, 12 and 16. The station will in
operation at all hours of the day every day of the week to provide emergency response to the local
area. Three employees are on-shift at all times, with shifts extending for a full 24 hours.
Trip Generation
The following section describes anticipated trip generation for Fire Station #15. Since rates for fire
stations are not published in the Institute of Transportation Engineers (ITE) Trip Generation (9th
Edition, 2012), the anticipated trip generation described below was estimated based on
information provided by the Renton Regional Fire Authority (RFA). Trips can be broken down into
three categories: fire station staff, visitors/miscellaneous trips, and emergency calls.
Fire Station Staff
Fire Station #15 will have capacity for three employees. Employees will work 24-hour shift periods,
with shift changes occurring daily at 8:00 a.m. Assuming two trips per employee (one inbound and
one outbound) per day, a total of 6 trips per day is expected. Since shift changes are anticipated to
occur during the AM peak hour, no PM peak hour employee-generated trips are expected.
Visitors and Miscellaneous Trips
In addition to employee-generated trips, visitor/miscellaneous trips are expected in the form of
public visits and any delivery or maintenance trips. As a result, a total of 20 non-employee trips
was estimated (10 entering and 10 exiting) during an average weekday. 20 percent of these trips
are expected to occur during the AM and PM peak periods, or 2 trips during the AM peak hour and
2 trips during the PM peak hour.
2
Emergency Calls
Based on information provided by the Renton RFA, approximately five emergency response calls
are anticipated to be fielded by Fire Station #15 on an average weekday. Fire station staff would
respond to these calls in one emergency vehicle; however, to be conservative it was assumed that
each call required two emergency vehicles to respond. As a result, a total of 20 emergency vehicle
trips was estimated (10 departing and 10 returning) during an average weekday, with 20 percent
occurring during the AM and PM peak hours.
Total trip generation for Fire Station #15 is summarized in Table 1 below.
Table 1. Project Trip Generation Summary
Daily
Trips
AM Peak Hour Trips PM Peak Hour Trips
Land Use Size Total In Out Total In Out
Fire Station Staff 3 employees 6 6 3 3 0 0 0
Visitors and Miscellaneous Trips 10 visitors 20 4 2 2 4 2 2
Emergency Calls 5 calls 20 4 2 2 4 2 2
Total 46 14 7 7 8 4 4
As shown in Table 1, the project is a low generator of vehicular traffic with approximately 46 daily
vehicle trips. This would include 14 occurring during the AM peak hour and 8 occurring during the
PM peak hour.