1. Designing for Pedestrian Safety – Road Diets 9-1 ROAD DIETS

2. Designing for Pedestrian Safety – Road Diets 9-2 ROAD DIETS Learning outcomes  Describe how Ped crash risk increases with number of travel lanes and speed.  Describe how reducing the number of travel lanes reduces risk, and makes it easier to cross the street  Describe how reducing # of lanes frees space for higher & better use:  Streets are as is 24/7, though peak traffic may be a concern for as little as 30 minutes a day

3. Designing for Pedestrian Safety – Road Diets 9-3 Classic Road Diet

4. Designing for Pedestrian Safety – Road Diets 9-4 Road Diets:reclaim street space for other uses Not just for bike lanes Cambridge MA

5. Designing for Pedestrian Safety – Road Diets 9-5 Road Diets and Traffic Operations

6. Designing for Pedestrian Safety – Road Diets 9-6 Fewer midblock conflicts Four-lane undivided Conflict Point Three-lane What 2 types of crashes can be avoided with the 3-lane configuration?

7. Designing for Pedestrian Safety – Road Diets 9-7 Fewer intersection conflicts Four-lane undivided Conflict Point Three-lane

8. Designing for Pedestrian Safety – Road Diets 9-8 Better left-turn sight distance

9. Designing for Pedestrian Safety – Road Diets 9-9 Valencia Street (SF) - before road diet San Francisco CA

10. Designing for Pedestrian Safety – Road Diets 9-10 Valencia Street (SF) - after road diet San Francisco CA

11. Designing for Pedestrian Safety – Road Diets 9-11 Mission District, San Francisco North-South ADTs 0 5000 10000 15000 20000 25000 DoloresGuerreroValenciaMissionS. Van Ness 1998 - before bike lanes2000 - after bike lanes

12. Designing for Pedestrian Safety – Road Diets 9-12 Valencia Street Bicycle Volumes PM peak hour counts 88 bikes/hr 215 bikes/hr 0 50 100 150 200 250 Valencia St before bike lanesafter bike lanes

13. Designing for Pedestrian Safety – Road Diets 9-13  Which road produces the highest speed? With a 4-lane road a fast driver can pass others With a 2-lane road slower drivers set the speed  Which road produces the highest crash rate?  Which is better for bicyclists, pedestrians, businesses? Road Diets  Which road carries the most traffic?

14. Designing for Pedestrian Safety – Road Diets 9-14 Old centerline Reclaiming road space creates room for islands Portland OR

15. Designing for Pedestrian Safety – Road Diets 9-15 On-street parking Median Center turn-lane Bike lanes Reclaimed road space creates room for many uses Seattle WA

16. Designing for Pedestrian Safety – Road Diets 9-16 This 5-lane Main Street was converted to… Pottstown PA

17. Designing for Pedestrian Safety – Road Diets 9-17 Pottstown PA Name 4 things that changed Fewer travel lanes; added bike lanes; parallel to back-in diagonal parking on one side; new pavement

18. Designing for Pedestrian Safety – Road Diets 9-18 There’s potential on one-way streets too: Is this street operating at capacity? Boise ID

19. Designing for Pedestrian Safety – Road Diets 9-19 This area was recaptured from a 4 th travel lane; the street took on a whole new life Portland OR

20. Designing for Pedestrian Safety – Road Diets 9-20 Iowa DOT study -15 road diet projects with 15 control sites over 23 years Portland OR = 25.2% reduction in total crashes/mile = 18.8% reduction in crash rate

21. Designing for Pedestrian Safety – Road Diets 9-21 What are some benefits of road diets for pedestrians?  Reduce crossing distance  Eliminate or reduce “multiple threat” crash types  Install medians or crossing island to break crossing into 2 simpler crossings  Reduce top end travel speeds  Add sidewalk buffer from travel lanes (parking or bike lane)  Reclaim street space for “higher and better use” than moving peak hour traffic

22. Designing for Pedestrian Safety – Road Diets 9-22 ROAD DIETS Learning outcomes  Described how Ped crash risk increases with number of travel lanes and speed.  Described how reducing the number of travel lanes reduces risk, and makes it easier to cross the street  Described how reducing # of lanes frees space for higher & better use:  Streets are as is 24/7, though peak traffic may be a concern for as little as 30 minutes a day

23. Designing for Pedestrian Safety – Road Diets 9-23 Questions?