HomeMy WebLinkAboutCAP 2013-07-08 Item 2E - Update - Duwamish Neighborhood Trail CrossingsoiLA
o z City of Tukwila
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Jim Haggerton, Mayor
INFORMATIONAL MEMORANDUM
TO: Mayor Jim Haggerton
Community Affairs and Parks Committee
FROM: Bob Giberson, Public Works Director °►,,J
DATE: July 5, 2013
SUBJECT: Duwamish Neighborhood Trail Crossings
ISSUE
Update on safety concerns and enforcement at two trail crossings along the Green River Trail.
BACKGROUND
Two trail crossings in the Duwamish neighborhood have been brought to the City's attention as
being unsafe. One trail crossing is on 40th Ave S, just east of Interurban Ave South, and the
other trail crossing is on S 1161 St, 200 feet east of East Marginal Way S (see attached vicinity
map and photos). Both trail crossings have stop signs that require pedestrians and bicyclists to
stop before crossing the roadway. In addition, as required by RCW 46.61.235 and RCW
46.61.190, vehicles shall stop for a pedestrian or a bicycle, and a pedestrian or a bicycle shall
not suddenly move into the path of a vehicle.
DISCUSSION
At the 40th Ave S location, the stop line and stop sign were relocated in June 2013 to be in
advance of the crosswalk, pursuant to the Manual on Uniform Traffic Control Devices (MUTCD).
Please see attached MUTCD Figures 9B -3 and 9B -7. In addition, the shrubs on the south side
of the 40th Ave S crossing have been trimmed to improve sight distance. These small changes
help bring this location closer to MUTCD standards and should improve visibility for both
vehicles and bicycles.
Other trail crossings in the region have similar warning signs for both vehicles and trail users
(see attached photos of trail crossings). The Cascade Bicycle Club representative referred the
Burke - Gilman crossing at NE 165th St in Lake Forest Park as an example of a well- designed
trail crossing and that it is similar to our 40th Ave S trail crossing.
Staff will add additional signs at these two trail crossings located at 40th Ave S and S 116th St
warning bicyclists that there is a mandatory stop sign ahead. Targeted spot enforcement of
bicyclist's compliance with the trail stop signs is recommended. Other trail improvements will be
evaluated and implemented after analyzing the effectiveness of these additional signs and
targeted spot enforcement.
RECOMMENDATION
Information only.
Attachments: Vicinity map
Duwamish Neighborhood Trail Crossings
Sample Regional Trail Crossings
MUTCD Figures 9B -3 and 9B -7
Cascade Bicycle Club email dated June 21, 2013
W: \PW Eng \OTHER \Bob Giberson \Correspondence \Info Memo Duwamish Trail Crossings 7.8.13 CAP.doc
41
40th Ave S
Trail
Crossing
VICINITY MAP
43
Duwamish Neighborhood Trail Crossings- 7.8.13 CAP
Green River Trail and 40th Ave S (just east of Interurban Ave S)
Looking north along trail
Looking towards trail crossing on 40th Ave S
Looking south along trail
45
Duwamish Neighborhood Trail Crossings- 7.8.13 CAP
Green River Trail and S 116th St (250 feet east of E Marginal Way S)
Looking east along S 116th St towards trail crossing
Looking north along trail towards S 116th St
Looking west along S 116th St towards trail crossing
Looking south along trail towards S 116th St
47
Sample Regional Trail Crossings- 7.8.13 CAP
Interurban Trail and Longacres Way — Tukwila, WA
Interurban Trail and S 272" St — Kent, WA
49
50
Sample Regional Trail Crossings-7.8.13 CAP
Woodway Trail and [ones Road — Olympia, WA
Woodway Trail and Sleater Kinney Rd SE — Lacey WA
51
52
Sample Regional Trail Crossings- 7.8.13 CAP
Burke - Gilman Trail and NE 65th — Seattle, WA
Burke Gilman Trail and NE 165th St — Lake Forest Park
53
2009 Edition
Figure 9B -3. Warning Signs and Plaques and Object Markers
for Bicycle Facilities
W1 -1
W1 -7
W1 -2
W1 -3
W1 -4
W1 -5
Page 797
W1 -6
W2 -1
W2 -2
W2 -3
W2 -4
W2 -5
W3 -1
W3 -2
W3 -3
W5-2
W5 -4a
W7 -5
NO
TRAIN HORN
W8 -1
W8 -2
W8 -3
W10 -1
W10-9P
W10 -12
SHARE
THE
ROAD
W11 -1* W11 -2*
500
FEET
W16 -1 P* W16 -2P*
500 FT
W 16 -2aP *
W16 -7P*
AHEAD
W12 -2 W15 -1*
W16 -9P* 0M3 -L 0M3 -C 0M3 -R
*A fluorescent yellow -green background color may be used for this sign or plaque. The background color of the plaque
should match the color of the warning sign that it supplements.
December 2009
Sect. 9B.18
5
2009 Edition
Page 803
Figure 9B -7. Examples of Signing and Markings for a Shared -Use Path Crossing
R1 -1
Shared -use path
R5 -3
4 5 4
ft ft ft
W2 -1
(if no stop, yield, or
signal control on path)
50 ft
Intersection traffic control devices might be STOP
or YIELD signs facing shared -use path approaches,
roadway approaches, or both, depending on
conditions (see Section 9B.03)
Roadway
W11 -15
W11 -1 W11 -15P
W16 -2aP W16 -2aP
(optional) (optional)
000 F T 1
December 2009
OR
f)
Crosswalk
lines as
needed
R5 -3
OR
rAel
W11 -1/
W16-7P
M6-4
W11 -15/
W11 -15P/
W16 -7P
Varies -
see
Section
9B.18
100 ft
8 ft
32 ft
8ft
Sect. 9B.22
57
Bob Giberson
From: Laurel Humphrey
Sent: Friday, June 21, 2013 11:15 AM
To: Bob Giberson
Subject: FW: Tukwila City Council issue: bike trail roadway intersections
Hi Bob,
I've reached out to Cascade Bicycle Club per last week's Council request. It sounds like they probably will not be able to
attend a meeting in July, but I'm scheduled to have a phone conversation with a staff member regarding
communication /education this coming Monday. Just wanted to pass the message below along.
Thanks,
Laurel
From: Jeff Aken fmailto: jeff .aken@cascadebicycleclub.org1
Sent: Thursday, June 20, 2013 1:53 PM
To: Serena Lehman; Laurel Humphrey
Cc: Evan Manvel
Subject: Re: Tukwila City Council issue: bike trail roadway intersections
Hi Laurel,
The image below represents a standard crossing for a non - motorized trail crossing and road intersection. From
the map you sent, it appears image B is most relevant. Having traffic stop before the trail (and bikes have a stop
sign as well) reduces the chance of conflict at the intersection. Also clear signage to make sure all users are
aware of each other. A good local example you might want to check out is at 165th and the Burke Gilman Trail
in Lake Forest Park. Unfortunately the google street view has not been updated since the trail has been rebuilt
in that area.
Jeff Aken
Principal Planner
Cascade Bicycle Club
Cascade Bicycle Club Education Foundation
p: 206-300-5932
"Creating a Better Community Through Bicycling."
1
59
Chapter 5: Shared -Use Paths
157
Figure 5 -23 (A)
#R1-1
450mmx450mm
(18" x 18 ")
Figure 5 -23 (B)
#R1 -1
450 mm x 450 mm
(18" x 18 ")
RIE
#W11 -1
(optional)
r NO
MOTOR
VEHICLES
#R5 -3
Figure 5 -23 (C)
>30m
( >100 ft)
#R1 -1
450mmx450mm
(18" x 18 ")
'ATH
Figure 5 -23:
Routing Two -Way Path Intersections with a Main Road
March 2007
Mn /DOT Bikeway Facility Design Manual
61