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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
NEXT GENERATION BICYCLE PLANNING
Montgomery County Planning Department
David Anspacher, Montgomery County Planning Department
Background
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Background
• Funding Source:
– Metropolitan Washington Council of Govts Transportation Land Use Connections Program
• Consultant Team
– Kittelson & Associates
– Toole Design Group
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
LOUDOUN COUNTY, VA
FREDERICK COUNTY, MD
FAIRFAX COUNTY, VA
HOWARD COUNTY, MD
WASHINGTON, DC
MONTGOMERY COUNTY, MD
PRINCE GEORGE’S, MD
Population: 1 million Area: 507 sq miles
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
LOUDOUN COUNTY, VA
FREDERICK COUNTY, MD
FAIRFAX COUNTY, VA
HOWARD COUNTY, MD
WASHINGTON, DC
MONTGOMERY COUNTY, MD
AGRICULTURAL RESERVE
PRINCE GEORGE’S, MD
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
LOUDOUN COUNTY, VA
FREDERICK COUNTY, MD
FAIRFAX COUNTY, VA
HOWARD COUNTY, MD
PRINCE GEORGE’S, MD
WASHINGTON, DC
MONTGOMERY COUNTY, MD
AGRICULTURAL RESERVE
ROCKVILLE
WHEATON
SILVER SPRING
BETHESDA
FRIENDSHIP HEIGHTS
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
LOUDOUN COUNTY, VA
FREDERICK COUNTY, MD
FAIRFAX COUNTY, VA
HOWARD COUNTY, MD
PRINCE GEORGE’S, MD
WASHINGTON, DC
MONTGOMERY COUNTY, MD
AGRICULTURAL RESERVE
ROCKVILLE
WHEATON
SILVER SPRING
TWINBROOK
WHITE FLINT
BETHESDA
FRIENDSHIP HEIGHTS
Purpose
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Traditional Suburban Bicycle Planning
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Four Types of Transportation Cyclists
Strong and Fearless (~4%)
Enthused and Confident (~9%)
Interested but Concerned (~56%)
No Way, No How (~31%)
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
TRADITIONAL
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
EMERGING
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
EMERGING
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
“If or when I ride a bike, I’m concerned about being hit by a motor vehicle”
Source: Jennifer Dill
39% 52% 84%
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
“Enthused and Confident”
• “Enthused and Confident” group is okay with bike lanes
Source: Jennifer Dill
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
“Interested but Concerned”
Source: Jennifer Dill
• “Interested by Concerned” group requires buffered bike lanes or cycle tracks on arterial roads
Bicycle Facility Selection Tools
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Traditional Facility Assessment
Maryland State Highway Administration
Posted Speed Limit
Truck Volumes %
Shoulder/ Lane Width
≤35 mph 4 feet
>35 mph and ≤45 mph
≤8% trucks 5 feet
>8% trucks
6 feet
>45 mph 6 feet
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Traditional Facility Assessment
• Each link is evaluated individually
– Network connectivity not considered and prioritized
– Intersections and transitions not considered
• Limited number of bicycle facilities
– New bicycle facilities and treatments have been developed for different contexts
• One size fits all approach
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Innovative Facility Selection Tools
• Account for the different needs of different types of users
• Recognize network connectivity
– Both in matters of facility siting and transitions at intersections or other obstacles
• Additional facility types are included in assessment
Tool #1: Nomographs
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Click to edit Master title style
Speed (mph)
Traf
fic
Vo
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AD
T)
CONFIDENT CYCLISTS
50K
45K
40K
35K
30K
25K
20K
15K
10K
5K
<5K
<15 20 25 30 35 40 45 50 55+
Physically Separated
Physically Separated Or Bike Lane with Buffer
Wide Bike Lane (Buffer Optional)
Mixed Traffic or Sharrow
Speed (mph)
INTERESTED BUT CONCERNED
10K
9K
8K
7K
6K
5K
4K
3K
2K
1K
<1K <15 20 25 30 35 40 45 50 55+
Traf
fic
Vo
lum
e (
AD
T)
Physically Separated
Mixed Traffic or Sharrow
Wide Bike Lane
(buffer optional)
Wide Bike Lane
(buffer preferred)
or Bike Lane with Buffer
Physically Separated
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Spring Street (west of Georgia Ave), Silver Spring Speed: 30 mph Volume: 9,700
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission Speed (mph)
Traf
fic
Vo
lum
e (A
DT)
CONFIDENT CYCLISTS 50K
45K
40K
35K
30K
25K
20K
15K
10K
5K
<5K
<15 20 25 30 35 40 45 50 55+
Speed (mph)
INTERESTED BUT CONCERNED 10K
9K
8K
7K
6K
5K
4K
3K
2K
1K
<1K <15 20 25 30 35 40 45 50 55+
Traf
fic
Vo
lum
e (
AD
T)
Physically Separated Physically Separated
Physically Separated Or Bike Lane with Buffer
Wide Bike Lane (Buffer Optional)
Mixed Traffic or Sharrow
Mixed Traffic or Sharrow
Spring Street (west of Georgia Ave), Silver Spring Speed: 30 mph Volume: 9,700
Tool #2: Level of Traffic Stress
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Level of Traffic Stress
• Four stress levels based on key facility and traffic factors
– Stress level 1 – Requires little attention, suitable for children
– Stress level 2 – Low traffic stress, but only suitable for most adults
– Stress level 3 – Moderate traffic stress for all bicyclists
– Stress level 4 – High stress, only suitable for experienced bicyclists
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Level of Traffic Stress
• Key factors include
– Presence and type of facility
– Width of dedicated bicycle facility
– Number of vehicle lanes
– Vehicle speed and volume
– Density of driveways, intersections, and other conflicts with facility
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Bethesda Downtown Plan
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Network for the “Strong and Fearless”
Existing Network Planned Network
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Network for the “Enthused and Confident”
Existing Network Planned Network
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Network for the “Interested but Concerned”
Existing Network Planned Network
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
Benefits of Level of Traffic Stress Compared to Other Metrics
• Incorporates physically separated facilities (shared use paths, cycle tracks)
• Evaluates road segments and intersections based on perceived safety
• Data requirements permit a relatively quick network assessment
• Enables improvements to be prioritized to maximize connectivity for different user groups
• How well you are addressing target population
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Maryland-National Capital Park and Planning Commission Maryland-National Capital Park and Planning Commission
David Anspacher
Montgomery County Planning Department
(301) 495-2191
www.montgomeryplanning.org/transportation/bikeways/