HomeMy WebLinkAboutRS_Traffic_Impact_Analysis_180911_v1.pdf
August 27, 2018
Harbour Homes, LLC
Attn: Ben Metsker
1441 N. 34th Street #200
Seattle, WA 98103
Re: Maple Highlands Plat – City of Renton
Trip Generation Letter Report
Dear Mr. Metsker:
We are pleased to submit this trip generation letter report for the proposed Maple
Highlands Plat consisting of 13 single family homes. The proposed project is located at
16210 SE 134th St. in the City of Renton. Access to the site is via 162nd 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 13 single family homes.
Vehicle access is by 162nd Ave. SE.
Half street frontage improvements are proposed for 162nd Ave SE and 164th Ave
SE along the west and east sides of the plat. A new street running through the plat
connects 162nd Ave SE and 164th Ave SE and provides driveway access to the lots.
One existing home will be removed by this development resulting in a net
increase of 12 homes.
A traffic count was taken on August 22, 2018 at the intersection of 162nd Ave SE
and SE 134th St. and is attached to this report for informational purposes. This is a very
low volume intersection carrying a total of 3 trips in the peak hour from 4 to 5 PM.
TRIP GENERATION AND DISTRIBUTION
The 12 net single-family units resulting from development of the Maple Highlands
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
57
50%
57
50%
114
AM Peak Hour 0.75 2
25%
7
75% 9
PM Peak Hour 1.00 8
63%
4
37% 12
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 should be 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
TheMapleHighlandsPlat
VicinityMap
Figure
1
*
Figure
2
SE134thSt 164thAveSETheMapleHighlandsPlat
SitePlan162ndAveSE
TECHNICAL APPENDIX
Prepared for: Traffex
Traffic Count Consultants, Inc.
Phone: (253) 770-1407 FAX: (253) 770-1411 E-Mail: Team@TC2inc.com
WBE/DBE
Intersection:162nd Ave SE & SE 134th St Date of Count:Wed 8/22/2018
Location:Renton, Washington Checked By:Jess
Time From North on (SB) From South on (NB) From East on (WB) From West on (EB) Interval
Interval Private Drwy 162nd Ave SE Private Drwy SE 134th St Total
Ending at T L S R T L S R T L S R T L S R
4:15 P 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
4:30 P 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
4:45 P 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
5:00 P 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
5:15 P 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
5:30 P 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
5:45 P 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1
6:00 P 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
6:15 P 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
6:30 P 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
6:45 P 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
7:00 P 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Total
Survey00 0 004 0 0 0 0 0 0 0 0 02 6
Peak Hour: 4:00 PM to 5:00 PM
Total00 0 001 0 0 0 0 0 0 0 0 02 3
Approach 0 1 0 2 3
%HV n/a n/a n/a n/a 0.0%
PHF n/a 0.25 n/a 0.50 0.75
Private Drwy
0
00
0 Bike
SE 134th St 00 0 0Ped Private Drwy
0
1 Ped 0 00
Bike 0 0 0
3 0 0 Bike
204:00 PM to 5:00 PM 0Ped 0
2
PEDs
Across:NS EW Ped 0 10 0 4 1.0 PHF Peak Hour Volume
INT 01 0Bike 0 PHF %HV
INT 02 0 EB 0.50 n/a
INT 03 0 21Check WB n/a n/a
INT 04 0 In:3 NB 0.25 n/a
INT 05 0 3Out:3 SB n/a n/a
INT 06 NO PEDS 0 162nd Ave SE T Int.0.75 0.0%
INT 07 0 Bicycles From: N S E W Conditions:
INT 08 0 INT 01 0
INT 09 0 INT 02 0
INT 10 0 INT 03 0
INT 11 0 INT 04 0
INT 12 0 INT 05 0
00 000 INT 06 NO BIKES 0
Special Notes INT 07 0
INT 08 0
INT 09 0
INT 10 0
INT 11 0
INT 12 0
00 0 00
TRA18102M_01p