CREATING LIVABLECOMMUNITIESTHROUGH ROAD DIETSCynthia Hoyle, FAICPTransportation Planning Consultant
Wide Roads Increase VehicleSpeed   Speed increases crash severity for all users   Over 35 MPH reduces roadway capacity  ...
Speed Matters    High speeds lead to    greater chance of    serious injury &    death                          3
Safety Benefits of Road DietsReduced vehiclespeedsReduced collisions& injuriesReduced conflictpointsImproved sightdistance...
Road Diets Lane reduction Four–to–two lane conversion  Accommodates existing and    future traffic without widening Be...
FHWA – Road Diets Proven SafetyCountermeasure   The Federal Highway    Administration (FHWA) Office    of Safety placed R...
 Which road carries more traffic? Which road produces higher speed?   4-lane: faster driver can pass others   2-lane: ...
Valencia Street, San FranciscoEconomic Effects of Traffic Calming onSmall Urban BusinessesEmily Drennen2003
Valencia StreetBefore  -62.5 ft widestreet withmetered parkingon street on             21’            10’3’’        10’3’’...
Valencia Street, San Francisco            CaliforniaAfter-Two lanes wereremoved, bicyclelanes installedand medianswere use...
Handles 20,000 ADT 25000 20000 15000 10000  5000    0          Dolores    Guerrero    Valencia   Mission   S. Van Ness    ...
Road Diets change intersectiondesignOlder Americans: 21% over 65 do  not drive Over 50% of non-  drivers stay at  home o...
Road Diets benefit people withdisabilities   Shorter crossing    distances reduce    time spent in the    street.   Vehi...
Road Diets improve intersectiondesign & accessibility                                  14
Successful Road Diets in Urbana                 Two Lanes w/ center turn lanes,Four Lanes       bike lanes, ped refuge isl...
Thank You!             Cynthia Hoyle, FAICP             Orion Planning Group             Urbana, IL 61801             choy...
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Creating Livable Communities Through Road Diets

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Creating Livable Communities Through Road Diets

  1. 1. CREATING LIVABLECOMMUNITIESTHROUGH ROAD DIETSCynthia Hoyle, FAICPTransportation Planning Consultant
  2. 2. Wide Roads Increase VehicleSpeed Speed increases crash severity for all users Over 35 MPH reduces roadway capacity 2
  3. 3. Speed Matters High speeds lead to greater chance of serious injury & death 3
  4. 4. Safety Benefits of Road DietsReduced vehiclespeedsReduced collisions& injuriesReduced conflictpointsImproved sightdistanceReduced crossingdistance
  5. 5. Road Diets Lane reduction Four–to–two lane conversion Accommodates existing and future traffic without widening Benefits all modes of travel Increases safety
  6. 6. FHWA – Road Diets Proven SafetyCountermeasure The Federal Highway Administration (FHWA) Office of Safety placed Road Diets on the official list of Proven Safety Countermeasures. States are actively encouraged to use the listed safety countermeasures and FHWA provides guidance on their application. Road Diets slow traffic by reducing car travel lanes and replacing them with things like bike lanes and center turn lanes.
  7. 7.  Which road carries more traffic? Which road produces higher speed?  4-lane: faster driver can pass others  2-lane: slower driver sets speed Which road produces higher crash rate? Which is better for bicyclists? Pedestrians? Businesses?
  8. 8. Valencia Street, San FranciscoEconomic Effects of Traffic Calming onSmall Urban BusinessesEmily Drennen2003
  9. 9. Valencia StreetBefore -62.5 ft widestreet withmetered parkingon street on 21’ 10’3’’ 10’3’’ 21’both sides, fourlanes with anaverage ADT of22,000 VPD Designing Streets for Pedestrian Safety-Reducing Crossing Crashes
  10. 10. Valencia Street, San Francisco CaliforniaAfter-Two lanes wereremoved, bicyclelanes installedand medianswere used for leftturns. 8 5’9’’ 10’6’’ 14’ 10’6’’ 5’9’’ 8’-Changes were ’made to signal Designing Streets for Pedestrian Safety – Reducing Crossing Crashestiming.
  11. 11. Handles 20,000 ADT 25000 20000 15000 10000 5000 0 Dolores Guerrero Valencia Mission S. Van Ness 1998 – before Valencia Road Diet 2000 - after Valencia Road DietMission District, San FranciscoNorth-South ADT 11
  12. 12. Road Diets change intersectiondesignOlder Americans: 21% over 65 do not drive Over 50% of non- drivers stay at home on a given day because they lack travel options 54% of older Americans living in inhospitable neighborhoods would walk and ride more if things improved 12
  13. 13. Road Diets benefit people withdisabilities Shorter crossing distances reduce time spent in the street. Vehicle speeds reduced Improved mobility for people with disabilites and reduced need for expensive paratransit service
  14. 14. Road Diets improve intersectiondesign & accessibility 14
  15. 15. Successful Road Diets in Urbana Two Lanes w/ center turn lanes,Four Lanes bike lanes, ped refuge island at bus stop 15
  16. 16. Thank You! Cynthia Hoyle, FAICP Orion Planning Group Urbana, IL 61801 choyle57@comcast.ne

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