Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Public Workshop #2

645 views

Published on

Published in: Business, Technology
  • Be the first to comment

  • Be the first to like this

Public Workshop #2

  1. 1. Public Workshop #2<br />October 2010<br />
  2. 2. 2<br />Meeting Agenda<br />Why are we here? <br />Corridor Design 101 <br />Alignments and Streetscapes<br />Opportunities and Constraints <br />Future Plans <br />Workshop – 2 topics <br />Alignments and Streetscapes <br />
  3. 3. Why here? Why now? <br />(See Project YouTube Video)<br />
  4. 4. Purpose of This Project<br />Address corridor congestion and safety problems <br />Serve future north-south traffic<br />Serve expected population growth in the area<br />Damascus <br />Happy Valley <br />Pleasant Valley Plan area <br />Gresham<br />Serve the growing demand for regional travel<br />
  5. 5. Corridor Alignment Goals<br />Improve mobility for:<br />Through traffic <br />Local community <br />Freight traffic<br />Minimize impacts to:<br />Environmental resources <br />Cultural resources<br />Social <br />Provide flexibility for:<br />Changing socio-economic conditions <br />Development opportunities<br />
  6. 6. Streetscape Goals<br />Provide an aesthetically pleasing design. . . <br />That supports the character of the adjoining land uses<br />That preserves rural character<br />Integrate “green streets” design with the natural features <br />Improve safety for all users <br />Support healthy and walkable communities <br />
  7. 7. Project Process<br />WE ARE HERE<br />
  8. 8. 8<br />Alternatives Development Process<br />
  9. 9. Corridor Design 101<br />Roadway Design Basics<br />Horizontal alignment <br />Vertical alignment<br />Roadway cross-sections<br />Intersection treatments<br />Intersection spacing<br />
  10. 10. Horizontal Alignment<br />Maximum degree of curve based on speed<br />
  11. 11. Vertical Alignment<br />Maximum Roadway Grades<br />8% for arterial roadways<br />12% for collector/local roadways<br />
  12. 12. Roadway Profile<br />Sight distance requirements<br />Vertical curve design<br />
  13. 13. Roadway Cross-Sections<br />Lane width requirements <br /><ul><li>Travel lane – 11-12 feet
  14. 14. Center turn lane – 12-14 feet
  15. 15. Bike lanes – 6 feet on both sides
  16. 16. Sidewalks – 6-8 feet
  17. 17. Landscape strip – 5-7 feet</li></ul>Source: City of Happy Valley TSP<br />
  18. 18. Roadway Cross Sections<br />Typical 3-lane arterial roadway<br />Source: City of Happy Valley TSP<br />
  19. 19. Other Streetscape Features<br />Drainage considerations<br />
  20. 20. Other Streetscape Features<br />Retaining wall to minimize impacts<br />
  21. 21. Streetscape Examples<br />SE 172nd Avenue (South of Sunnyside)<br />
  22. 22. Streetscape Examples<br />SW Walker Road<br />
  23. 23. Streetscape Examples<br />SW Kruse Way<br />
  24. 24. Intersection Options<br />Traffic signals<br />Roundabouts<br />Stop signs<br />
  25. 25. Intersection Spacing<br /> Minimum Intersection Spacing<br /><ul><li>Arterial & collectors intersections – 1,000 feet
  26. 26. Local street intersections – 500 feet</li></li></ul><li>Corridor Opportunities and Constraints<br />Discussed in <br />Stakeholder interviews<br />Memos on existing conditions<br />Memos on projected future conditions<br />
  27. 27. 23<br />Future Transportation Conditions -- 2035<br />Projections in Project Study Area <br /><ul><li>Households grow by more than 300%
  28. 28. Jobs grow by 1,200%
  29. 29. Virtually all intersections fail during peak hours</li></ul>Projected Average Daily Traffic (ADT)<br /><ul><li>16,000 vehicles/day (south of Foster Rd)
  30. 30. 25,000 vehicles/day (north of Sunnyside Rd) </li></li></ul><li>24<br />Existing Transportation Conditions<br />Traffic volumes<br />172nd Avenue: 8,500 vehicles /day (near Hemrick Rd)<br />Foster Road : 7,500 vehicles /day (near Cheldelin Rd)<br />SE Sunnyside Road: 9,000 vehicles /day (near 172nd Ave)<br />All intersections operate acceptably except Foster Road/172nd Avenue (LOS F)<br />Intersection crash rates are within normal levels<br />There are no bike lanes or sidewalks<br />
  31. 31. Topography<br />
  32. 32. 26<br />Natural Resources<br />
  33. 33. Existing Cross-Section<br />172nd Avenue<br />
  34. 34. Existing Cross-Section<br />190th Avenue<br />
  35. 35. 29<br />Other Opportunities and Constraints<br />10 historical resources eligible for National Register of Historic Places<br />Generally located along Foster Rd<br />No recorded archaeological sites<br />
  36. 36. Future Plans for Corridor<br />Regional Transportation System Plan <br />Local Transportation System Plans<br />Local Comprehensive Plans <br />30<br />
  37. 37. 31<br />Planned Transportation Network<br />
  38. 38. Planned Transportation Network (north)<br />
  39. 39. Planned Transportation Network (south)<br />
  40. 40. Future Land Use<br />
  41. 41. 35<br />Now Let’s Create Some Corridor Design Concepts…<br />Use the Roadway Design Tool to sketch new road alignments on the base maps.<br />
  42. 42. Comment Sheets<br />Please be sure to document your feedback!<br />
  43. 43. Thanks!<br />

×