HomeMy WebLinkAboutTIC 2018-09-10 Item 2G - Discussion - Tukwila International Boulevard Retrofit AnalysisIIY
City of Tukwila
Public Works Department - Henry Hash, Director
INFORMATIONAL MEMORANDUM
TO: Transportation and Infrastructure Committee
FROM: Henry Hash, Public Works Director //1
BY: Cyndy Knighton, Senior Program Manager
CC: Mayor Ekberg
DATE: September 7, 2018
SUBJECT: TIB Retrofit Analysis
Project No. 81710404
Allan Ekberg, Mayor
ISSUE
Additional analysis is needed to fully understand the potential impacts and costs of the
proposed TIB Retrofit Project.
BACKGROUND
In 2017, a community workshop was conducted by the Congress for New Urbanism (CNU) and
the City to build upon and identify specific actions that could be taken to implement the 2015
TIB District goals and policies of creating TIB into a "main street." The CNU workshop resulted
in a report issued in April 2017 with recommendations to reduce the number of through lanes
on TIB by half, add bike lanes and on -street parking.
Tukwila subsequently contracted with Fehr & Peers to study the impacts of the proposed road
diet on TIB. The preliminary report was presented to the Transportation and Infrastructure
Committee (TIC) on November 14, 2017. Given the likely significant impacts to parallel
residential streets, the Committee did not arrive at a recommendation but directed staff to
conduct further study and report back in 2018 for further discussion.
ANALYSIS
More analysis should be undertaken to understand the full impacts of the proposed road diet on
TIB, especially the impacts to the residential streets impacted by the diversion of traffic. The
type of traffic calming treatments needed to be effective in protecting the local access streets
should be more fully analyzed. Cost estimates need to be produced for the traffic calming
treatments, not just the road diet options being considered. Further discussions are warranted
with all stakeholders that consider if the changes are prudent.
FISCAL IMPACT
If the Council desires more comprehensive studies, additional funding will be required.
RECOMMENDATION
Information only.
w:1pw englprojectsla- rw & rs projectslfib retrofit (81710404)101 preliminary engineering0nfo memo - analysis of impacts 9-7-18sm hp gl.docx