Transportation Master Plan November 2007
City of Mountlake Terrace Transportation Master Plan
Adopted November 19, 2007
Prepared for:
23204 58th Avenue W Mountlake Terrace, WA 98043
Prepared by:
11820 Northup Way, Suite E300 Bellevue, WA 98005 425/822-1077
November 2007 This document should be cited as: Jones & Stokes. 2007. City of Mountlake Terrace Transportation Master Plan. November. (J&S 00305.07.) Bellevue, WA. Prepared for City of Mountlake Terrace.
Acknowledgments The successful completion of this project was made possible through the cooperation and assistance of numerous individuals. The following people provided guidance and support through the course of this study:
Council Jerry Smith, Mayor Laura Sonmore, Mayor Pro Tem Angela Amundson Michelle Angrick Michelle Robles Doug Wittinger John Zambrano
Planning Commission Alice Kier, Chair Bryan Wahl, Vice Chair Nick Bautista John Olsen Vic Sood Mike Wicklander Kyoko Matsumoto Wright
Staff John J. Caulfield, City Manager Will Van Ry, Engineering Services Director Shane Hope, Planning and Development Director Kirk Roberts, Traffic Engineer Darryl Greer, GIS Technician Abiy Tsegaye, Civil Engineer I Leslie Lavoie, Administrative Assistant Linda Sweet, Records Clerk
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Table of Contents
Chapter 1. Introduction...... 1-1 Purpose of Plan ...... 1-1 Plan Background...... 1-1 Regulatory Framework...... 1-2 Growth Management Act ...... 1-2 Washington Transportation Plan...... 1-3 Puget Sound Regional Council Plans ...... 1-3 Transportation Goals and Policies ...... 1-4 Public Participation ...... 1-4 Plan Elements...... 1-5
Chapter 2. Roadway Plan...... 2-1 State Highways...... 2-1 Roadway Functional Classifications...... 2-2 Definition of Functional Classifications...... 2-2 Existing Functional Classifications ...... 2-3 Evaluation of Functional Classifications...... 2-6 Proposed Roadway Functional Classifications...... 2-7 City Roadway Inventory...... 2-10 Traffic Control Inventory...... 2-11 Parking...... 2-13 Access and Connectivity...... 2-14 Roadway Connections within the City...... 2-14 Street Rights-of-Way...... 2-15 Potential New Connections ...... 2-15 Street Standards...... 2-20 Traffic Volumes ...... 2-25 Level of Service ...... 2-25 Safety Assessment ...... 2-32 Future Conditions...... 2-35 Travel Demand Forecasting Model ...... 2-35 Projected 2013 Conditions without Improvements ...... 2-38 Projected 2025 Conditions without Improvements ...... 2-43 Recommended Roadway Improvements ...... 2-46
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Chapter 3. Sidewalk Plan...... 3-1 Sidewalk Standards ...... 3-1 Streetscape for a Pedestrian-Friendly Environment...... 3-1 Inventory of Existing Sidewalks...... 3-3 Accessibility ...... 3-3 Assessment of Sidewalk Needs...... 3-8 Prioritized Sidewalk Projects...... 3-10 Implementation of Sidewalk Program ...... 3-15
Chapter 4. Bicycle Plan...... 4-1 Existing Bicycle Routes...... 4-1 Bicycle Facility Options...... 4-3 Method for Identifying Bicycle Routes...... 4-4 Bike Route Facility Requirements...... 4-6 Implementation of Bicycle Plan...... 4-8
Chapter 5. Traffic Calming Plan ...... 5-1 Reducing Cut-Through Traffic...... 5-2 Reducing Speeding Traffic...... 5-2 Program Implementation...... 5-2
Chapter 6. Transit and Transportation Demand Management ...... 6-1 Community Transit Service...... 6-1 Fixed Route Bus Service...... 6-1 Rideshare Services...... 6-3 DART Paratransit...... 6-3 Sound Transit Express Bus Service...... 6-4 Park-and-Ride Facilities...... 6-4 Future Planned Transit Projects...... 6-5 Transportation Demand Management ...... 6-5
Chapter 7. Maintenance and Preservation...... 7-1 Maintenance ...... 7-1 Preservation...... 7-1 Chip Seals...... 7-2 Asphalt Concrete Pavement Overlays ...... 7-2 Pavement Restoration Standards ...... 7-2 Traffic Signal Upgrades...... 7-3
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Chapter 8. Financial Plan...... 8-1 Project Costs...... 8-1 Revenue Sources ...... 8-2 Estimated Revenues Available ...... 8-3 Contingency Plans...... 8-4
Tables
Table 2-1. Miles of Roadway by Recommended Functional Classification ...... 2-9 Table 2-2. Inventory of City Roadways...... 2-10 Table 2-3. Traffic Signal Inventory...... 2-13 Table 2-4. Low Stormwater Impact Development Techniques ...... 2-25 Table 2-5. Typical Roadway Level of Service Characteristics...... 2-26 Table 2-6. Level of Service Criteria for Intersections...... 2-27 Table 2-7. Level of Service Criteria for Roundabouts...... 2-27 Table 2-8. PM Peak Hour Intersection Level of Service – Existing Conditions...... 2-29 Table 2-9. High Collision Locations ...... 2-33 Table 2-10. PM Peak Hour Intersection Level of Service – 2013 Conditions without Improvements ...... 2-40 Table 2-11. PM Peak Hour Intersection Level of Service – 2025 Conditions without Improvements ...... 2-43 Table 2-12. Recommended Transportation Improvements through 2025 ...... 2-46 Table 2-13. PM Peak Hour Intersection Level of Service– 2013 Conditions with Recommended Improvements...... 2-47 Table 2-14. PM Peak Hour Intersection Level of Service – 2025 Conditions with Recommended Improvements...... 2-50 Table 3-1. Prioritized Walkway Projects ...... 3-11 Table 4-1. Bike Route Facility Recommendations...... 4-6 Table 4-2. Cost of Implementing Bicycle Plan...... 4-10 Table 8-1. Costs of Implementing the Transportation Master Plan...... 8-1 Table 8-2. Estimated 6-Year Transportation Revenue ...... 8-4
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Figures
Figure 2-1. Access and Mobility Characteristics of Roadway Functional Classifications...... 2-2 Figure 2-2. Existing Federal Functional Classifications ...... 2-4 Figure 2-3. Existing Roadway Functional Classifications...... 2-5 Figure 2-4. Functional Classifications...... 2-8 Figure 2-5. Existing Traffic Control ...... 2-12 Figure 2-6. Existing Street Rights of Way...... 2-16 Figure 2-7. Potential 228th Street SW Connection ...... 2-17 Figure 2-8. Potential 236th Street SW Connection ...... 2-18 Figure 2-9. Potential 52nd/53rd Avenue W Connection ...... 2-19 Figure 2-10. Potential Gateway Avenue Connection ...... 2-20 Figure 2-11. Typical Roadway Cross-Sections...... 2-23 Figure 2-12. Town Center Street Cross Sections ...... 2-24 Figure 2-13. Existing LOS...... 2-31 Figure 2-14. High Collision Locations ...... 2-34 Figure 2-15. Transportation Analysis Zones...... 2-36 Figure 2-16. Planned Future Land Use...... 2-39 Figure 2-17. 2013 Intersection LOS...... 2-42 Figure 2-18. 2025 Intersection LOS...... 2-45 Figure 2-19. 2013 Intersection LOS with Improvements...... 2-49 Figure 2-20. 2025 Intersection LOS with Improvements...... 2-51 Figure 3-1. Existing Sidewalks...... 3-4 Figure 3-2. Examples of Sidewalk Ramps that Do Not Meet ADA Requirements ...... 3-5 Figure 3-3. Examples of Sidewalk Ramps that Meet ADA Requirements ...... 3-6 Figure 3-4. Sidewalk Ramp Inventory...... 3-7 Figure 3-5. Potential Sidewalk Projects ...... 3-14 Figure 4-1. Existing Designated Bicycle Routes...... 4-2 Figure 4-2. Future Bikeway Plan...... 4-5 Figure 4-3. Bicycle Facility Sections ...... 4-9 Figure 5-1. Examples of Phase I and Phase II Traffic Calming Solutions...... 5-3 Figure 6-1. Fixed Route Bus Service...... 6-2
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Appendices
Appendix A. Transportation Goals and Policies Appendix B. Public Involvement Materials Appendix C. Street Standards Appendix D. Low Stormwater Impact Techniques Appendix E. Walkway Prioritization Matrix and Cost Estimates Appendix F. Bikeway Prioritization Matrix and Cost Estimates Appendix G. Draft Commute Trip Reduction Plan Appendix H. Six Year Financial Analysis Appendix I. Walkway Easement Corridors Appendix J. Traffic Calming Program
Acronyms
ADA Americans with Disabilities Act ADT Average Daily Traffic CIP Capital Improvement Plan City City of Mountlake Terrace County Snohomish County CTR Commute Trip Reduction DART Dial-A-Ride Transit FHWA Federal Highway Administration GMA Growth Management Act I Interstate LOS level of service MTP Metropolitan Transportation Plan PSRC Puget Sound Regional Council RCW Revised Code of Washington SR State Route State State of Washington TAZ Transportation Analysis Zones
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TDM Transportation Demand Management TSM Transportation System Management WSDOT Washington State Department of Transportation WTP Washington Transportation Plan
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Chapter 1. Introduction
Purpose of Plan The Transportation Master Plan is a long-term functional plan that will address all forms of transportation in Mountlake Terrace in a more detailed manner than, but consistent with, the Comprehensive Plan. The Transportation Master Plan addresses streets, transit, walkways, and bicycle facilities. The purpose of the Transportation Master Plan is to guide the development of surface transportation in the City of Mountlake Terrace (City) in a manner consistent with the City’s adopted transportation goals, objectives, and policies, and the overall goals of the Comprehensive Plan. The Transportation Master Plan addresses all modes of travel and programs that guide the City’s transportation efforts. Based upon existing and projected future land use and travel patterns, the Transportation Master Plan describes roadway and traffic conditions, outlines forecasting and analysis methodologies, and assesses existing and future deficiencies. The Transportation Master Plan also includes a Financial Plan that proposes projects to address identified transportation issues and deficiencies while also considering available funding.
Plan Background Portions of the Transportation Master Plan may be used to update the transportation element of the City of Mountlake Terrace Comprehensive Plan, which provides the long-range vision, goals, and policies of the community. The Comprehensive Plan includes land use, housing, transportation, capital facilities, utilities, parks and recreation, shorelines, and economic development elements, as well as a Capital Facilities Plan. The Transportation Element was last updated in 2003.
The 2003 update significantly revised the Transportation Element of the original 1996 Comprehensive Plan. The Transportation Element at that time was based on an earlier plan that
1-1 November 2007 Transportation Master Plan used a 1993 travel demand forecasting model that provided traffic projections through the year 2010. For the 9 years following 1993, no additional citywide travel demand forecasting model was developed. In 2002, the City reviewed the current traffic conditions and found that some areas of the City had already exceeded the previous traffic growth projections for the year 2010. Growth factors for roadway traffic volumes were developed and used to traffic volumes for the years 2012 and 2022.
Amendments to the Comprehensive Plan since 2003 include the adoption of a subarea plan for the Melody Hill Neighborhood in early 2006 and the Town Center Plan in early 2007.
Regulatory Framework The Transportation Master Plan is consistent with the transportation policies and plans adopted at the State of Washington (State), regional, Snohomish County (County), and local levels, as described in the following sections.
Growth Management Act Transportation planning at the State, County and local levels is mandated by the State of Washington Growth Management Act (GMA) (Revised Code of Washington [RCW] 36.70A, 1990) and subsequent amendments. The GMA contains many requirements for the preparation of the Transportation Element of a Comprehensive Plan. In addition to requiring consistency with the Land Use Element, the GMA requires that the following components be included in the Transportation Master Plan: