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Main Street King Street Charrette Final Presentation

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Presented on March 16, 2011.

Published in: News & Politics
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Main Street King Street Charrette Final Presentation

  1. 1. Northampton Main/King Charrette NelsonNygaard Consulting Associates 1
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  21. 21. Overbuilt streets cause speeding 21
  22. 22. Planning for pedestrian safety: Principles Leaf, W. and Preusser, D. Literature Review on Vehicle Travel Speeds and Pedestrian Injuries Among Selected Racial/Ethnic Groups, NHTSA (USA), 1999. 22
  23. 23. Wide Streets Are Less Safe Street widths and injury accident rate, graphic by Peter Swift 23
  24. 24. Seattle Conversions (4 to 3 Lane)Roadway Date ADT ADT CollisionLocation Change Before After ReductionGreenwood Ave N 24 to 10 Apr-95 11872 12427 N 80th St to N 50th 58%N 45th Street 45 to 23 Dec-72 19421 20274 Wallingford Area 49%8th Ave NW 18 to 7 Jan-94 10549 11858 Ballard Area 61%Martin Luther King Jr W 15 to 6 Jan-94 12336 13161 North of I 90 60%Dexter Ave N 19 to 16 Jun-91 13606 14949 Queen Ann Area 59%24th Ave NW 14 to 10 Oct-95 9727 9754 NW 85th to NW 65th 28% 24
  25. 25. Taking a Road Diet 25
  26. 26. Seattle Conversions (4 to 3 Lane)Roadway Date ADT ADT CollisionLocation Change Before After ReductionGreenwood Ave N 24 to 10 Apr-95 11872 12427 N 80th St to N 50th 58%N 45th Street 45 to 23 Dec-72 19421 20274 Wallingford Area 49%8th Ave NW 18 to 7 Jan-94 10549 11858 Ballard Area 61%Martin Luther King Jr W 15 to 6 Jan-94 12336 13161 North of I 90 60%Dexter Ave N 19 to 16 Jun-91 13606 14949 Queen Ann Area 59%24th Ave NW 14 to 10 Oct-95 9727 9754 NW 85th to NW 65th 28% 26
  27. 27. Greenwood Avenue: 12,000 cars per day 27
  28. 28. Dexter Ave: 15,000 cars per day 28
  29. 29. 45th Street in Wallingford: 20,000 cars per day 29
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  31. 31. EXISTINGNorthern King Street – 80’ Right-of-Way 31
  32. 32. IDEALMiddle King Street – 62’ Right-of-Way 32
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  34. 34. Conventional Development Shop School P P P T T T T T T T T T TT T P P Work Play P 34
  35. 35. Mixed-Use District Work Shop School PPlay T T Results: <½ the parking <½ the land area ¼ the arterial trips 1/6th the arterial turning movements <¼ the vehicle miles travelled 35
  36. 36. EXISTINGMiddle King Street – 62’ Right-of-Way 36
  37. 37. IDEALMiddle King Street – 62’ Right-of-Way 37
  38. 38. 38
  39. 39. EXISTINGSouthern King Street – 55’ Right-of-Way 39
  40. 40. IDEALSouthern King Street – 55’ Right-of-Way 40
  41. 41. CHANGES IN PAINTSouthern King Street – 55’ Right-of-Way 41
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  60. 60. space…. 60

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