Publications Transmittal Transmittal Number Date PT 17-039 July 2017 Publication Distribution To: Design Manual Holders Publication Title Publication Number Design Manual – July 2017 M 22-01.14 Originating Organization WSDOT Development Division, Design Office – Design Policy, Standards, and Safety Research Section Remarks and Instructions What’s changed in the Design Manual for July 2017? See the summary of revisions beginning on Page 3. How do you stay connected to current design policy? It’s the designer’s responsibility to apply current design policy when developing transportation projects at WSDOT. The best way to know what’s current is to reference the manual online. Access the current electronic WSDOT Design Manual, the latest revision package, and individual chapters at: www.wsdot.wa.gov/publications/manuals/m22-01.htm We’re ready to help. If you have comments or questions about the Design Manual, please don’t hesitate to contact us. Area of Practice Your Contacts Geometric Design, Roadside Safety Jeff Petterson 360-705-7246 [email protected] and Traffic Barriers Kurt Sielbach 360/705-7937 [email protected] Chris Schroedel 360-705-7299 [email protected] General Guidance and Support John Donahue 360-705-7952 [email protected] To get the latest information on individual WSDOT publications: Sign up for email updates at: www.wsdot.wa.gov/publications/manuals/ HQ Design Office Signature Phone Number /s/ Jeff Carpenter 360-705-7821 Page 1 of 8 Remove/Insert instructions for those who maintain a printed manual NOTE: Also replace the Title Page CHAPTER/SECTION REMOVE PAGES INSERT PAGES Contents/Exhibits Entire Contents Entire Contents Technical Errata July 2016 TE-1&2 N/A Errata retired 100 Manual Description Entire chapter Entire chapter 210 Public Involvement and Hearings Pages 210-1 – 6 Pages 210-1 – 6 300 Design Documentation, Approval, and Process Review Entire chapter Entire chapter 301 Design and Maintenance Coordination 301-19&20 301-19&20 305 Managing Projects Entire chapter Entire chapter 310 Value Engineering Entire chapter Entire chapter 321 Sustainable Safety Analysis Entire chapter Entire chapter 560 Fencing Entire chapter Entire chapter 610 Investigation of Soils, Rock, and Surfacing Materials 610-11&12 610-11&12 710 Site Data for Structures Entire chapter Entire chapter 720 Bridges Entire chapter Entire chapter 1010 Work Zone Safety and Mobility Entire chapter Entire chapter 1030 Delineation Entire chapter Entire chapter 1040 Illumination Entire chapter Entire chapter 1100 Practical Design Entire chapter Entire chapter 1101 Need Identification Entire chapter Entire chapter 1102 Context Identification Entire chapter Entire chapter 1103 Design Control Selection Entire chapter Entire chapter 1104 Alternatives Analysis Entire chapter Entire chapter 1105 Design Element Selection Entire chapter Entire chapter 1106 Design Element Dimensions Entire chapter Entire chapter 1120 Preservation Projects Entire chapter Entire chapter 1230 Geometric Cross Section Entire chapter N/A 1230 Geometric Cross Section Basics N/A Entire chapter 1231 Geometric Cross Section – Highways N/A Entire chapter 1232 Geometric Cross Section – Freeways N/A Entire chapter 1238 Geometric Cross Section – Streetside and Parking N/A Entire chapter 1239 Geometric Cross Section – Shoulders, Side Slopes, Curb, N/A Entire chapter and Medians 1250 Superelevation Entire chapter N/A 1250 Cross slope and Superelevation N/A Entire chapter 1270 Auxiliary Lanes Entire chapter Entire chapter 1300 Intersection Control Type Entire chapter Entire chapter 1310-1 – 4, 37&38, 1310-1 – 4, 37&38, 1310 Intersections 41&42 41&42 1320 Roundabouts Entire chapter Entire chapter 1330 Traffic Control Signals Entire chapter Entire chapter 1360 Interchanges Entire chapter Entire chapter 1410 High-Occupancy Vehicle Facilities 1410-5&6 1410-5&6 1420 HOV Direct Access 1420-11–16 1420-11–16 1430 Transit Facilities 1430-17&18 1430-17&18 1510 Pedestrian Facilities 1510-1 – 6 & 31 – 34 1510-1 – 6 & 31 – 34 1600 Roadside Safety Entire chapter Entire chapter 1610 Traffic Barriers Entire chapter Entire chapter Glossary Entire Glossary Entire Glossary Page 2 of 7 About revision marks and footer dates: • A new date appears in the footer of each page that has changes. • Changes include inserted or deleted content and existing content that shifts to a new page. • New or substantially rewritten chapters will have no revision marks. This is the case with many chapters this publication. • In some cases, just a page of a chapter changed with a spot revision, such as a correction or new chapter reference. Summary of Design Manual Changes – July 2017 (Revisions merit careful study beyond this summary) Highlights of the More Substantial Revisions Chapter 300 Design Documentation, Approval, and Process Review • Document operational changes included in a project • Early real estate acquisition • Design Approval requirements • Projects of Division Interest (PoDI) added to Exhibit 300-1; revised some notes • Crash Analysis Report added to Exhibit 300-2. Chapter 321 Sustainable Safety Analysis • Rewritten Chapter provides safety analysis policy and links to new Safety Analysis Guide. Chapter 1010 Work Zone Safety and Mobility • Coordinate with WSDOT Freight and Public Transportation Divisions for work zone needs. • Added text regarding project complexity and scale of TMP. • Replaced shy distance with minimum lateral buffer. • Revised 1010.07(4) Abrupt Lane Edges because it duplicated content in the Standard Specifications. Chapter 1030 Delineation • Revised reflectors used on guide posts used at intersections. Changed from using green reflectors to using white-silver. Type name changed from G1 and G2 to IC1 and IC2. Standard Plans revised for same. • Other updates includes text on composite beads, terms updated, simplified notes on exhibit tables. Chapter 1040 Illumination • Areas with required illumination: HOT lanes (added access weave lane); chain up/off parking areas (clarifies when luminaries are energized); work zones and detours section shortened (refers to 1010). • Minor changes to design area requirements. • Light Standards: removed standard pole height of 50 foot, standards over 40 foot are called out only for certain conditions specified; removed angular Type 2 mast arms; Signal Maintenance approval required for all median mounted luminaires except chain on/off areas. • The standard luminaire in use for roadway lighting is cobra head style type III LED fixture. Chapter 1100 Practical Design • Practical Design overview chapter. Several revisions based on changes to the other 1100 chapters. • Removed term MAISA; using project advisory team instead. • Removed phrase changed or employed related to design elements. Just using term changed. Page 3 of 8 • Replaced term Least cost planning with Practical Solutions Planning. • Simplified Exhibit 1100-1 Basis of Design Flowchart. Chapter 1101 Need Identification • Removed reference to Chapter 1106 about performance target refinement procedures, because 1106 no longer says to use a performance target refinement form. Use the BOD to show refined targets. • New text inserted in 1101.02 to consider and coordinate needs statements with other processes such as VE, IJR, NEPA/SEPA. Chapter 1102 Context Identification • Rewritten to provide guidance and structure for determining land use and transportation contexts. • Chapter based on emerging best practices for context identification as established in NCHRP Project 15-52 Developing a Context-Sensitive Functional Classification System for More Flexibility in Geometric Design. Chapter 1103 Design Control Selection • Clarified and reduced content on Design Year. • Structured guidance to help choose which modes to prioritize. • Tied design speed to the roadway types and land use contexts found in revised 1102. Chapter 1104 Alternatives Analysis • Deleted text referring to Ch 1106 for target refinement instructions. • Policy now is to use the BOD to document refined performance targets (see revised 1106.) Chapter 1105 Design Element Selection • Removed employed from the chapter as related to design elements. Using changed. • Other minor changes. Chapter 1106 Design Element Dimensions • Performance Target Refinement Form discontinued; instruction provided to enter refined performance targets on the Basis of Design form. Chapter 1120 Preservation Projects • Added content to 1120.01 to allow project engineer option to include other elements in a preservation project • Added content in 1102.03(1) to reinstall rumble strips. • 1120.03(2) ADA – added content about project delivery or design memorandums. • Added DDP to vertical clearance section. • 1120.03(7) – added conditional bullets for adjusting height of Type 1 and Type 31 guardrail. Revised Breakaway Cable Terminal instruction to include more routes on which to replace BCTs. • Removed term employs related to design elements. This coincides with other policy revisions in the 1100 and 1200 series. • Updated references to chapters in the 1200 series to coincide with new chapter organization. Chapter 1230 Geometric Cross Section Basics • Presents cross section basics and guides use of other new 1230 cross section chapters. Chapter 1231 Geometric Cross Section – Highways • Most content moved from previous Chapter 1230. • Covers all highway types except freeways, which has its own chapter now (1232). • Exhibits are oriented to modes as previous content did; added notes to exhibits about speed. Page 4 of 8 Chapter 1232 Geometric Cross Section – Freeways