Narrow Streets, Timely Response Healthy Streets for America   Overhang 14 feet’ Dan Burden, Senior  Urban  Designer, Glatt...
Turning Radius must also accommodate overhang
85% to 93% of all calls are now medical or traffic related
Traffic Calming Publications Authored by: Dan Burden Walkable Communities
The World is Changing Expect: Option One:   25% more traffic every ten years.   More intersections failing.  More people s...
80% Rule  Give us nearly free movement for our first 80% of our journey,  and protect our access to the final 20%
What planners, developers and people often fear
What planners, developers and people want
Portland, Oregon
Charlottesville, Virginia
 
 
Proper width entry, and protected space is on the correct side of the intersection New Hope, Seattle, Washington 20 Feet 2...
 
 
Healthy street system provide quick, efficient, uncluttered travel ways and response times on major routes leading up to l...
 
 
 
 
 
 
Cambridge, Mass.
 
 
Connectivity
 
 
 
 
 
 
32 nd   STREET BARRICADE
32 nd   STREET BARRICADE
42 nd   STREET BARRICADE
42 nd   STREET BARRICADE
 
EXISTING NETWORK
EFFECTIVE NETWORK
 
1) Why is connectivity important?
Most Trips are Internal 12 Points of Access All Trips are External
 
 
 
 
 
 
 
 
 
 
 
250 125 75 21 15
 
 
 
Land Use
 
Connectivity Requirements - Examples Link-node ratio of 1.44 Virginia DOT
Connectivity Requirements <ul><li>Compact Area Type for Network Additions </li></ul><ul><li>Link-Node Ratio of 1.6 or grea...
Connectivity Requirements <ul><li>Suburban Area Type for Network Additions </li></ul><ul><li>Link-Node Ratio of 1.4 or gre...
Meriam Park, Chico, California
Connectivity: Network Holcomb Bridge Rd. Alpharetta Hwy. Crossville Rd. Crabapple Rd. Old Ala Rd. Hembree Rd. Azalea Pine ...
Connectivity: Effective Network 21%   of the Total Network is “Effective” Holcomb Bridge Rd. Alpharetta Hwy. Crossville Rd...
 
 
 
Primary response Secondary response Tertiary response Neighborhood connector Use trail connectors and neighborhood connect...
Assure Access
Bellevue, Washington
186 th  S.E. Bellevue, Washington
Bellevue, Washington
Bellevue, Washington
Bellevue, Washington
Sammamish, Washington
 
University Place, Washington
University Place, Washington 10  Feet
University Place, Washington 10  Feet
Martin Luther King, Pensacola, Florida
 
Healthy Streets Avenue Lane Street
Access
Mountable median nose
 
 
Primary response
 
Ten Foot Visual Space 13 Foot Physical Space
Proper application of rollover curbing
 
 
Gainesville, Florida Motorist parks in Tee intersection blocks large equipment from entry Solution? Curb extensions Two-St...
Charlottesville, Virginia
Protect Access to all Locations <ul><li>No humps or bumps (some tables or raised intersections) </li></ul><ul><li>Proper t...
 
 
 
Gainesville, Florida  Emergency Response Team and Public Works Department
Unit is able to clear chicane at 28 mph
Gainesville, Florida Critical entry to neighborhood.  Streets are too narrow for rare event. Bus breaks down, emergency ca...
Two micron clearance!!! Gainesville, Florida
8.0 ft outer wheel 42.0 ft inner wheel 28.3 ft overhang 43.5 ft Single Unit (“SU”) Truck Turning Radius Reframing Key Tran...
Plan must provide adequate turning radii,  not excessive width   Departure road 20.0 feet wide, Entry road 20.0 feet wide ...
 
Chico, California Bike lanes provide places for motorists to pull over.  Widths of 5-7 feet are effective
 
 
 
Mountable median nose
 
24 Foot Wide Street
20 Feet Proper width entry, but protected space is on the wrong side of the intersection 26 Feet
 
 
Midblock Access
Seattle, Washington
Issaquah Highlands, Washington Motor Court
 
Upper Arlington, Ohio
Suisun City, California 20 Feet Wide 6 Feet 2 Feet
 
 
Ten Foot Visual Space 13 Foot Physical Space
 
AVENUE Right-of-Way 68- 84 feet 12' 7-11' 12-20' 7-11' 5'  10' 10' 7'   7'   5'
7 Feet 6 Feet 6 Feet University Place, Washington Curb-to-Curb  17 feet  33 mph running speeds 10 Feet
12 Feet 5 Feet Natomas,  Sacramento, California Curb-to-Curb  17 feet  38 mph running speeds
What fire administrators often fear What Fire administrators should accept Petaluma, California Both streets are 28 feet w...
 
Mill Valley, Washington 11 Feet 10 Feet 11 Feet
 
 
 
Federal Blvd, Denver, Colorado
New Hope, Seattle, Washington
New Hope, Seattle, Washington 27 Feet
Healthy streets provide the best opportunity to sustain property value (traffic calmed neighborhoods increase property val...
Speeds: 20-22 mph 28-32 mph Value Same homes $5-15K less Suisun City, California
ALLEY Right-of-way 20  – 22  feet 10-12' 5' 8' 8' 5'
 
Corner radii are tight,  but mountable
Mobile Narrow Streets Workshop Petaluma, California
 
 
 
Accessible ladders Accordion doors
 
 
 
 
 
Acacia Roundabout, Clearwater, Florida
 
La Jolla Boulevard, Bird Rock, San Diego, California  (Five to two lane conversion, before).  Four signals and one four-wa...
La Jolla Boulevard, Bird Rock, San Diego, California 14 Feet
 
 
 
 
 
 
 
Healthy streets provide the best opportunity to sustain property value (traffic calmed neighborhoods increase property val...
Speeds: 20-22 mph 28-32 mph Value: Same homes $5-15K less Suisun City, California
Philadelphia, Pennsylvania
Cambridge, Mass.
In Memoriam Fire Chief, Ralph Burden 1915- 2000 Thanks, Dad For Everything
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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Narrow Streets, Timely Response: Healthy Streets for America

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Dan Burden's presentation at CNU's Emergency Response and Narrower Streets Workshop, Nov. 3, 2009, in Portland, Ore.

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Narrow Streets, Timely Response: Healthy Streets for America

  1. 1. Narrow Streets, Timely Response Healthy Streets for America Overhang 14 feet’ Dan Burden, Senior Urban Designer, Glatting Jackson and Director of Walkable Communities, Inc.
  2. 2. Turning Radius must also accommodate overhang
  3. 3. 85% to 93% of all calls are now medical or traffic related
  4. 4. Traffic Calming Publications Authored by: Dan Burden Walkable Communities
  5. 5. The World is Changing Expect: Option One: 25% more traffic every ten years. More intersections failing. More people spreading out into canyons, ridges and other high risk locations. Also Expect: More cars per household Limited new lanes and limits on intersections being rebuilt More demand for slowing traffic More demand for traffic to stay in motion More demand for safer streets More demand for quieter streets Emergency is here Responder is here
  6. 6. 80% Rule Give us nearly free movement for our first 80% of our journey, and protect our access to the final 20%
  7. 7. What planners, developers and people often fear
  8. 8. What planners, developers and people want
  9. 9. Portland, Oregon
  10. 10. Charlottesville, Virginia
  11. 13. Proper width entry, and protected space is on the correct side of the intersection New Hope, Seattle, Washington 20 Feet 26 Feet
  12. 16. Healthy street system provide quick, efficient, uncluttered travel ways and response times on major routes leading up to local street system
  13. 23. Cambridge, Mass.
  14. 26. Connectivity
  15. 33. 32 nd STREET BARRICADE
  16. 34. 32 nd STREET BARRICADE
  17. 35. 42 nd STREET BARRICADE
  18. 36. 42 nd STREET BARRICADE
  19. 38. EXISTING NETWORK
  20. 39. EFFECTIVE NETWORK
  21. 41. 1) Why is connectivity important?
  22. 42. Most Trips are Internal 12 Points of Access All Trips are External
  23. 54. 250 125 75 21 15
  24. 58. Land Use
  25. 60. Connectivity Requirements - Examples Link-node ratio of 1.44 Virginia DOT
  26. 61. Connectivity Requirements <ul><li>Compact Area Type for Network Additions </li></ul><ul><li>Link-Node Ratio of 1.6 or greater </li></ul><ul><li>One external connection as well as an additional external connection and stub-out per 50 links or fraction thereof </li></ul>Virginia DOT
  27. 62. Connectivity Requirements <ul><li>Suburban Area Type for Network Additions </li></ul><ul><li>Link-Node Ratio of 1.4 or greater </li></ul><ul><li>One external connection as well as an additional external connection and stub-out per 50 links or fraction thereof </li></ul>Virginia DOT
  28. 63. Meriam Park, Chico, California
  29. 64. Connectivity: Network Holcomb Bridge Rd. Alpharetta Hwy. Crossville Rd. Crabapple Rd. Old Ala Rd. Hembree Rd. Azalea Pine Grove Rd. Marietta Hwy. Woodstock Rd. Riverside Rd. Hardscrabble Rd. Houze Rd. 3,568 miles of roads 400 N
  30. 65. Connectivity: Effective Network 21% of the Total Network is “Effective” Holcomb Bridge Rd. Alpharetta Hwy. Crossville Rd. Crabapple Rd. Old Ala Rd. Hembree Rd. Azalea Pine Grove Rd. Marietta Hwy. Woodstock Rd. Riverside Rd. Hardscrabble Rd. Houze Rd. 735 miles of roads U.S. Vehicle Miles Traveled (Per Capita) is 27 miles Daily Atlanta Vehicle Miles Traveled (Per Capita) is 66 miles Daily 400 N
  31. 69. Primary response Secondary response Tertiary response Neighborhood connector Use trail connectors and neighborhood connectors for added entries
  32. 70. Assure Access
  33. 71. Bellevue, Washington
  34. 72. 186 th S.E. Bellevue, Washington
  35. 73. Bellevue, Washington
  36. 74. Bellevue, Washington
  37. 75. Bellevue, Washington
  38. 76. Sammamish, Washington
  39. 78. University Place, Washington
  40. 79. University Place, Washington 10 Feet
  41. 80. University Place, Washington 10 Feet
  42. 81. Martin Luther King, Pensacola, Florida
  43. 83. Healthy Streets Avenue Lane Street
  44. 84. Access
  45. 85. Mountable median nose
  46. 88. Primary response
  47. 90. Ten Foot Visual Space 13 Foot Physical Space
  48. 91. Proper application of rollover curbing
  49. 94. Gainesville, Florida Motorist parks in Tee intersection blocks large equipment from entry Solution? Curb extensions Two-Step curbing
  50. 95. Charlottesville, Virginia
  51. 96. Protect Access to all Locations <ul><li>No humps or bumps (some tables or raised intersections) </li></ul><ul><li>Proper turn radii (protect right-turn entries) </li></ul><ul><li>Preserve 20’ operations width </li></ul><ul><li>Bike lanes and parking help with turning radius </li></ul><ul><li>Set landscape features back from corners </li></ul><ul><li>Curb extensions are helpful in protecting access </li></ul>Emergency Response <ul><li>Provide high connectivity (system redundancy) </li></ul>Performance Measure: Able to maintain 4 minute response time to all most locations <ul><li>Use care in tree selection and placement </li></ul>
  52. 100. Gainesville, Florida Emergency Response Team and Public Works Department
  53. 101. Unit is able to clear chicane at 28 mph
  54. 102. Gainesville, Florida Critical entry to neighborhood. Streets are too narrow for rare event. Bus breaks down, emergency call comes in. Only one way in
  55. 103. Two micron clearance!!! Gainesville, Florida
  56. 104. 8.0 ft outer wheel 42.0 ft inner wheel 28.3 ft overhang 43.5 ft Single Unit (“SU”) Truck Turning Radius Reframing Key Transportation Conventions DESIGN TRAFFIC – Vehicle Types 0 10 20 40
  57. 105. Plan must provide adequate turning radii, not excessive width Departure road 20.0 feet wide, Entry road 20.0 feet wide turning radius of vehicle: WB-40 AASHTO and other national standards permit designers to use full roadway receiving radius for oversize vehicles A fine grained road system with well distributed traffic allows narrow entries “ Controlling Vehicle” Extra-Ordinary vehicle using road section can be accommodated through other solutions at site. “ Design Vehicle” Ordinary vehicle using road section
  58. 107. Chico, California Bike lanes provide places for motorists to pull over. Widths of 5-7 feet are effective
  59. 111. Mountable median nose
  60. 113. 24 Foot Wide Street
  61. 114. 20 Feet Proper width entry, but protected space is on the wrong side of the intersection 26 Feet
  62. 117. Midblock Access
  63. 118. Seattle, Washington
  64. 119. Issaquah Highlands, Washington Motor Court
  65. 121. Upper Arlington, Ohio
  66. 122. Suisun City, California 20 Feet Wide 6 Feet 2 Feet
  67. 125. Ten Foot Visual Space 13 Foot Physical Space
  68. 127. AVENUE Right-of-Way 68- 84 feet 12' 7-11' 12-20' 7-11' 5' 10' 10' 7' 7' 5'
  69. 128. 7 Feet 6 Feet 6 Feet University Place, Washington Curb-to-Curb 17 feet 33 mph running speeds 10 Feet
  70. 129. 12 Feet 5 Feet Natomas, Sacramento, California Curb-to-Curb 17 feet 38 mph running speeds
  71. 130. What fire administrators often fear What Fire administrators should accept Petaluma, California Both streets are 28 feet wide (Yield Streets)
  72. 132. Mill Valley, Washington 11 Feet 10 Feet 11 Feet
  73. 136. Federal Blvd, Denver, Colorado
  74. 137. New Hope, Seattle, Washington
  75. 138. New Hope, Seattle, Washington 27 Feet
  76. 139. Healthy streets provide the best opportunity to sustain property value (traffic calmed neighborhoods increase property values), which increases tax base to sustain high quality government services, including emergency response.
  77. 140. Speeds: 20-22 mph 28-32 mph Value Same homes $5-15K less Suisun City, California
  78. 141. ALLEY Right-of-way 20 – 22 feet 10-12' 5' 8' 8' 5'
  79. 143. Corner radii are tight, but mountable
  80. 144. Mobile Narrow Streets Workshop Petaluma, California
  81. 148. Accessible ladders Accordion doors
  82. 154. Acacia Roundabout, Clearwater, Florida
  83. 156. La Jolla Boulevard, Bird Rock, San Diego, California (Five to two lane conversion, before). Four signals and one four-way stop being removed. Back-in Angled parking to be added. (23,000 ADT) 78 Feet
  84. 157. La Jolla Boulevard, Bird Rock, San Diego, California 14 Feet
  85. 165. Healthy streets provide the best opportunity to sustain property value (traffic calmed neighborhoods increase property values), which increases tax base to sustain high quality government services, including emergency response.
  86. 166. Speeds: 20-22 mph 28-32 mph Value: Same homes $5-15K less Suisun City, California
  87. 167. Philadelphia, Pennsylvania
  88. 168. Cambridge, Mass.
  89. 169. In Memoriam Fire Chief, Ralph Burden 1915- 2000 Thanks, Dad For Everything

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