Street Design Workshop Existing cross section
Traffic volumes
Examine adjacent land
uses
You design future
improvements
Primary Tools for Street Redesign Road diets Bike lanes Cycle tracks Trails Crosswalks On-street parking Roundabouts Traffic circles Curb extensions/bulb outs Medians/crossing islands Streetscape enhancements Bus shelters Lighting
4-3 lanes Road Diets
Road diets: reclaim street space for other uses
Not just for bike lanes
Road Diets and Traffic Operations
3 crash types can be reduced by going from 4 to 3 lanes: which ones?
X
3 crash types can be reduced by going
from 4 to 3 lanes: 1 – rear enders
X
3 crash types can be reduced by going
from 4 to 3 lanes: 2 – side swipes
X
3 crash types can be reduced by going
from 4 to 3 lanes: 3 – left turn/broadside
Concept Before
Reality: Before
Reality: After
Before/after studies: 1. Crash rate
12.6
8.4
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0C
rash
Rat
e (p
er M
VM
)
Before After
1 crash every 2.5 days
34% Reduction
(146 per yr)
1 crash every 4.2 days (87 per yr)
3.6
1.2
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0In
jury
Rat
e (p
er M
VM
)
Before After
68% Reduction
1 injury every 9 days
(41 per yr) 1 injury every 30 days
(12 per yr)
Before/after studies: 2. Injury rate
15.7%
7.5%9.8% 8.9%
29.5%
19.6%
0.0%
5.0%
10.0%
15.0%
20.0%
25.0%
30.0%
35.0%Pe
rcen
t of V
ehic
les
Trav
elin
g ov
er 3
6 M
PH
Before AfterBefore BeforeAfter
North End Middle South End
After
Before/after studies: 3. Speeding analysis
20,500
18,100
0
5,000
10,000
15,000
20,000
25,000V
ehic
les
per
Day
Before After
Now
21,000+
Before/after studies: 4. Traffic volumes
29%
41%
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
Par
kin
g U
tiliz
atio
n P
erce
nta
ge
Before After
Before/after studies: 5. On-street parking utilization
2,136
2,632
0
500
1000
1500
2000
2500
3000N
um
ber
of
Ped
estr
ian
s
Before After
23% Increase
Before/after studies: 6. Pedestrian volumes
375
486
0
100
200
300
400
500
600N
um
ber
of
Bic
ycle
s
Before After
30% Increase
Before/after studies: 7. Bicyclist volumes
21’ 10’ 3” 10’ 3” 21’
Total width = 62’ 6”
Valencia Street (SF) - before road diet
Valencia Street - with bike lanes after road diet
5’ 9” 8’10’ 6” 10’ + 4’ 5’ 9”10’ 6”8’
Valencia Street (SF) - after road diet
Mission District, San Francisco
North-South ADTs
0
5000
10000
15000
20000
25000
Dolores Guerrero Valencia Mission S. Van Ness
1998 - before bike lanes 2000 - after bike lanes
Valencia Street Bicycle Volumes PM peak hour counts
88 bikes/hr
215 bikes/hr
0
50
100
150
200
250
Valencia St
before bike lanes after bike lanes
Road Diet Simulation
Bike Lanes
Cycle Tracks
Trails
Crosswalks
On-Street Parking
Roundabouts
A roundabout is a type of intersection control Clearwater FL
A roundabout is not:
1. A New England style rotary, with large size & high speeds
Augusta ME
A roundabout is not:
2. A Washington DC style circle, with traffic signal controls
Washington DC
Why roundabouts are safer for all users:
• Slow speed:
Deflection, truck apron, splitter islands, “reverse super”
• Reduced conflicts
• No left turns
• Yield on entry
CRF (all users):
• About 54% overall
• 27% pedestrian crashes
• Up to 76% fatalities and serious injuries
Essential roundabout characteristics
Slow speed entry = yield
Slow speed exit
Truck apron
Splitter island
Crosswalk 1 car
length back
Lots of deflection = slow
speeds throughout
Separated sidewalks
direct peds to crosswalks
Bend OR
Constrained entry slows drivers
Traffic Circles Can replace 4-way stops
And beautify
Existing Proposed
Curb Extensions/Bulbouts
Mid-block Curb
Extensions
Medians
Crossing Islands
Streetscape Enhancements: Furniture, Hardscape and Landscape
Bus Shelters
Lighting
Economic Development Increased real estate
values
Faster selling properties
New businesses
Tourism
Grants
Lancaster Boulevard Transition Changed from 4 lane high-
speed street to 2-lane walkable inviting street
Approximately 40 new businesses in one year
New movie theater
New museum
Weekly farmers’ market
New adjacent apartments filling
Old nearby housing selling
El Cajon
Designing for Pedestrian Safety – Road Diets
9-66
Existing 6th Street East of Fairfax Avenue
Designing for Pedestrian Safety – Road Diets
9-67
Road Diet Concept 6th Street East of Fairfax Avenue
Existing 6th Street at Arden Blvd.
Road Diet Concept for 6th Street at Arden Blvd.
Existing 6th Street in Koreatown
Road Diet Concept for 6th Street in Koreatown
Existing 6th Street, East of Alvarado
6th Street East of Alvarado
Road Diet Concept
Existing San Vicente Blvd. – 6 Lanes
Road Diet Concept San Vicente Blvd. – 4 Lanes
Existing
San Vicente Blvd.
Concept
Thank you for participating in this Transforming Our Community’s
Health (TOUCH) event. To Learn More:
www.BrowardCompleteStreets.org
Made Possible with funding from the Centers for Disease Control and Prevention.
http://www.browardcompletestreets.org/http://www.browardcompletestreets.org/Top Related