Efficiency through technology and collaboration

Road Diet (Roadway Reconfiguration)

Every Day Counts 3 Innovative Safety Initiative

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Presentation Agenda

• Overview of Road Diets • New York City Example • Washington DC Example • Tampa FL Example • Resources and Questions

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Safety – A Central Goal for USDOT

“Safety is our highest priority and that commitment is the same regardless of which form of transportation people choose, including walking and biking.”

Secretary Anthony FoxxProWalk ProBike ProPlace

ConferenceSeptember 10, 2014

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What is a Road Diet?

4 Through Lanes 2 Through LanesTWLTL and Bike Lanes

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What is a Road Diet?

4 Through Lanes 2 Through LanesTWLTL and Bike Lanes

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Other Roadway Reconfigurations

4-Lane to 5-Lane 2-Lane to 3-Lane

3-Lane to 3-Lane 5-Lane to 3-Lane

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Determining Road Diet Purpose/Feasibility

• Improve safety •Reduce speeds and speed variance

•Mitigate left turn/through traffic conflicts

• Improve bicyclist accessibility• Improve walkability•Enhance transit service•Fit the community context

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Determining Road Diet Purpose/FeasibilityOther Factors (Challenges/Obstacles)• Funding Formulas• Public and Business Concerns• Parallel roadways• Parking• Truck Traffic• Transit Vehicles

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Why Consider a Road Diet? -- Case Studies

• New York City – Advantages & Disadvantages

• District of Columbia – East Street • Tampa, FL – Nebraska Avenue

Enhanced SAFETY for ALL ROAD

USERS

LOW COST and LOW IMPACT

Improved MOBILITY and ACCESS for

all modes

“COMPLETE STREETS”

characteristics

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New York City Road Diets

Pedestrian and Bicyclist Benefits

Improved MOBILITY and ACCESS for

all modes

Road Diet Advantages -- NYC

• Improved safety and mobility for cyclists and pedestrians

• Reduction in fastest speeds

• Crash reduction

Road Diet Disadvantages -- NYC

• Increased travel delay

• Increased delay on side streets

• Loss of passing opportunities

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District of Columbia Road Diets

“COMPLETE STREETS”

characteristics

Livabililty and Complete Streets

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Goals for DC Road Diets so far

• Create space for bike lanes• Improve ‘livability’• Increase pedestrian safety

Build it and they will come

1990 2000 2006 2007 2008 2009 2010 2011 2012 2013 20140

10

20

30

40

50

60

70

0.00%

0.50%

1.00%

1.50%

2.00%

2.50%

3.00%

3.50%

4.00%

4.50%

5.00%

2.7 2.7

24.730.1

38.544.7

50.3 51.355.8

6066

0.75%

1.16%

2.00%

1.68%

2.33%2.17%

3.13%3.30%

4.10%

4.54%

DC Travel to Work by Bicycle & Bike Lane Development

Miles of Bike Lanes

Bike to Work Modesare

Year

E Street NW Road Diet

Before After

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E Street, NW. Turn Lanes.

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E Street

Total Crashes Ped Crashes Bike Crashes0

10

20

30

40

50

60

BeforeAfter

Peak Hour Cyclists Before: 11Peak Hour Cyclists After:32

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15th Street Protected Bike Lane (cycletrack)

• 4 lanes 1-way North

• North half residential, south half CBD

• Parking both sides• Concerns of safety,

traffic speeds– Posted speed 25– 85th Percentile

between 36-45 mph

• Excess capacity– 6,000 to 12,000

ADT

15th St. Before

• Remove 1 NB auto lane in north half

• Initially, SB contraflow cycle track behind full-time parking lane, with NB sharrows

• Later, converted to 2-way cycle track on west curb and extended south to CBD

• LOS drop of one letter grade at most intersections

15th St. After

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15th Street--Increase in cyclists

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15th Street NW--LOS and Speed

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15th Street NW--Bike Crashes

E to NY H to Mass N to U0

2

4

6

8

10

12

BeforeAfterAdjusted

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15th Street--Bicycle Volume and Crashes

Sherman Ave Rehabilitation

Sherman Ave. NW Road Diet, 2013

•85th% Speeds: • before:

35mph• after:

28mph•Too early for crash data

After:

• Median• Wider sidewalks• Trees• Sharrows

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Tampa, FL Road Diet – Nebraska Avenue

DOWNTOWN TAMPANEBRASKA AVE

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Tampa, FL Road Diet – Nebraska Avenue

• 3.15 miles• Before: 4-lane undivided urban arterial• Construction 2007-2008•$11.1 million•After: 2-lane arterial

–Two way left turn lane–Painted medians–Bus pull outs–Bike lanes

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Tampa, FL Road Diet – Nebraska Avenue

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Nebraska Avenue – Before/After Crash Comparison• Before (2004 – 2006)

–17,900 ADT–174 crashes per year–13 fatal/incapacitating crashes per year–7 pedestrian crashes per year

•After (2009-2013)–15,000 ADT–71 crashes per year–6 fatal/incapacitating crashes per year–<3 pedestrian crashes per year

•59% reduction in crashes, 51% reduction in crashes per MVMT

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Nebraska Avenue – Before/After Crash Comparison

TotalCrashes/

YearTotal

Crashes/ Year

AADT LengthYearly MVMT

Crashes/ MVMT

AADT LengthYearly MVMT

Crashes/ MVMT

Total Crashes 523 174.33 355 71.00 59% 17900 3.15 20.58 8.47 15030 3.15 17.28 4.11 51%

Fatal/Incapacitating Injury Crashes 38 12.67 31 6.20 51% 17900 3.15 20.58 0.62 15030 3.15 17.28 0.36 42%

Pedestrian Crashes 21 7.00 13 2.60 63%

Bicycle Crashes 15 5.00 28 5.60 -12%

Sideswipe Crashes 47 15.67 18 3.60 77% 17900 3.15 20.58 0.76 15030 3.15 17.28 0.21 73%

Angle & Left Turn Crashes 215 71.67 147 29.40 59% 17900 3.15 20.58 3.48 15030 3.15 17.28 1.70 51%

Head-On Crashes 14 4.67 13 2.60 44% 17900 3.15 20.58 0.23 15030 3.15 17.28 0.15 34%

Rear-End Crashes 73 24.33 103 20.60 15% 17900 3.15 20.58 1.18 15030 3.15 17.28 1.19 -1%

Pedestrian and Bike Crashes are not reported on a per MVMT basis.

% ReductionCrash Type

Before (January 2004 thru December 2006)

After (January 2009 thru December 2013)

% Reduction

Before (January 2004 thru December 2006) After (January 2009 thru December 2013)

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Tampa, FL Road Diet – Nebraska Avenue

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Tampa, FL Road Diet – Nebraska Avenue

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Tampa, FL Road Diet – Nebraska Avenue

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Tampa, FL Road Diet – Nebraska Avenue

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Nebraska Avenue – Summary Results•Reduction in crashes per year•Improved pedestrian safety•Reduction in key crash types

–Sideswipe–Left Turn/Angle–Head on

•Crash Rate is less than the statewide average for 2-lane divided roadways (Previously 50% higher than the 4-lane undivided average).

•Favorably compares to the FHWA estimated reduction of 29%-53% (Desktop Reference for Crash Reduction Factors)

•59% reduction in crashes, 51% reduction in crashes per MVMT

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Resources

• FHWA Road Diet Informational Guide – Coming Soon!

• FHWA Road Diet Case Studies – Coming Soon!

• EDC 3 Initiatives: Road Diet Fact Sheet

• FDOT Road Diet Policy – Coming Soon!

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Questions

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For Additional Information:

Becky CroweFHWA Office of Safety(804) 775-3381Cell: (804) 517-5598Rebecca.Crowe@dot.gov

Peter Hsu, P.E.FDOT District Safety EngineerOffice: (813) 975-6251Ping.Hsu@dot.state.fl.us