HomeMy WebLinkAboutRS_Traffic Study_170407_v1
March 21, 2017
Harbour Homes, LLC
Attn: Chris Burrus
1441 N. 34th Street #200
Seattle, WA 98103
Re: Cedars at the Highlands (formerly the Madison Reserve) Plat – City of Renton
Revised Trip Generation Letter Report
Dear Mr. Burrus:
We are pleased to submit this revised trip generation letter report for the
proposed Cedars at the Highlands (formerly the Madison Reserve) Plat consisting of 14
single family homes. The original traffic memo was for 13 lots. The proposed project is
located at 14120 160th Ave SE in the City of Renton. Access to the site is via a new site
access street to 160th Ave. SE.
Per City of Renton guidelines, a Traffic Impact Analysis (TIA) is only required for
projects that generate 20 or more trips in either the AM or PM peak hour.
PROJECT DESCRIPTION
Figure 1 is a vicinity map showing the location of the site and the surrounding
street network.
Figure 2 is the preliminary site plan of the proposed 14 single family homes.
Vehicle access is provided by a new site access street to 160th Ave. SE. The parcel
number is 1457500110.
One existing home will be removed by this development resulting in a net
increase of 13 homes.
TRIP GENERATION AND DISTRIBUTION
The 13 net single-family units resulting from development of the Madison
Reserve Plat are expected to generate the vehicular trips during an average weekday
and during the street traffic peak hours as shown below:
Time Period Trip Rate
Trips per unit
Trips
Entering
Trips
Exiting
Total
Average Weekday 9.52
62
50%
62
50%
124
AM Peak Hour 0.75 2
25%
8
75% 10
PM Peak Hour 1.00 8
63%
5
37% 13
A vehicle trip is defined as a single or one direction vehicle movement with either
the origin or destination (exiting or entering) inside the study site.
The trip generation is calculated using the average trip rates in the Institute of
Transportation Engineers (ITE) Trip Generation, Ninth Edition for Single Family
Detached Housing (ITE Land Use Code 210). These trip generation values account for
all site trips made by all vehicles for all purposes, including resident, visitor, and service
and delivery vehicle trips.
SUMMARY AND CONCLUSIONS
Since the proposed project generates less than 20 trips in any one hour period, a
TIA is not required and no significant adverse impact is created due to traffic generated
by the development.
If you have any questions, please call 425-522-4118. You may also contact us
via e-mail at vince@nwtraffex.com or larry@nwtraffex.com.
Very truly yours,
Vincent J. Geglia Larry D. Hobbs, P.E.
Principal Principal
TraffEx TraffEx
ProjectSite
CedarsattheHighlandsPlat
VicinityMap
Figure
1
*
CedarsattheHighlandsPlat
SitePlan
Figure
2