Settling the Score: Street Performance Measures-- Community Wide Bicycle Level of Service Analysis
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Transcript of Settling the Score: Street Performance Measures-- Community Wide Bicycle Level of Service Analysis
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Pro Walk Pro Bike 2014 Mike Lowry, University of Idaho
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Outline
1. Background
2. Bicycle Level of Service Tool
3. Community-wide Bikeability Tool
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Background
• Bicycle Suitability Perceived comfort and safety of a segment of street or pathway
• Bikeability Perceived comfort and safety of network connectivity for accessing important destinations
• Bicycle Friendliness Perceived comfort and safety of all aspects of bicycle travel, including bikeability, laws and policies to promote bicycling, education efforts to encourage bicycling, and general acceptance of bicycling throughout the community
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Name of Method Acronym Author Date
Bicycle Safety Index Rating BSIR Davis 1987
Bicycle Stress Level BSL Sorton and Walsh 1994
Road Condition Index RCI Epperson 1994
Interaction Hazard Score HIS Landis 1994
Bicycle Suitability Rating BSR Davis 1995
Bicycle Level of Service BLOS Botma 1995
Bicycle Level of Service BLOS Dixon 1996
Bicycle Suitability Score BSS Turner et al 1997
Bicycle Compatibility Index BCI Harkey et al 1998
Bicycle Suitability Assessment BSA Emery and Crump 2003
Rural Bicycle Compatibility Index RBCI Jones 2003
Compatibility of Roads for Cyclists CRC Noel et al 2003
Bicycle Level of Service BLOS Zolnik 2007
Bicycle Level of Service BLOS Jensen 2007
Bicycle Level of Service BLOS Petritsch et al 2007
Bicycle Environmental Quality Index BEQI SFDPH 2009
Bicycle Quality Index BQI Birk et al 2010
Bicycle Level of Service BLOS HCM 2011
Bicycle Levels of Traffic Stress LTS Mekuria and Furth 2012
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Attribute
Method
BSL BSS BCI BSA BLOS
width of outside lane x x x x x
width of bike lane x x x
width of shoulder x x x x
on-street parking x x x
presence of curb x x
vehicle traffic volume x x x x x
number of lanes x x
speed limit x x x x x
percent heavy vehicles x x
pavement condition x x x
elevation grades x
adjacent land use x x
storm drain grate x
physical median x
turn lanes x x
frequent curves x
restricted sight distance x
numerous driveways x
presence of sidewalks x
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BICYCLE LEVEL OF SERVICE
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BICYCLE SUITABILITY SCORE
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BICYCLE SUITABILITY ASSESSMENT
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CALCULATE BICYCLE LEVEL OF SERVICE
Tool 1
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[BLOS Demonstration video]
http://www.youtube.com/watch?v=k3ch1J9ugmM
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Current
Proposed
Improvement
Proposed
Improvement
Conditions Scenario 1 Scenario 2
A 70 78 84
B 7 8 5
C 10 8 5
D 7 3 3
E 3 1 1
F 3 2 2
BLOS
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BLOS Attribute
Wol width of outside lane
Nth number of lanes
SR speed limit
c presence of curb
Pc pavement condition
Wos width of shoulder
vm vehicle traffic volume
ppk on-street parking
Wbl width of bike lane
PHV percent heavy vehicles
Online Survey: 60 Communities in Idaho
Do you have GIS DATA?
BLOS Attribute
Percent of
Respondents
(%)
Wol width of outside lane 76
Nth number of lanes 67
SR speed limit 66
c presence of curb 58
Pc pavement condition 48
Wos width of shoulder 43
vm vehicle traffic volume 42
ppk on-street parking 41
Wbl width of bike lane 31
PHV percent heavy vehicles 12
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BICYCLE LEVEL OF SERVICE
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Primary Arterial
n = 7
Minor Arterial
n = 7
Collector
n = 9
Local Street
n = 15
Attribute Low Median High Low Median High Low Median High Low Median High
1) Wol 12 12 15 10 12 15 10 12 15 10 12 15
2) Wbl 0.0 5.0 7.0 0.0 0.0 5.0 0.0 0.0 5.0 0.0 0.0 0.0
3) Wos 0.0 12.0 14.0 0.0 9.5 13.0 0.0 7.0 12.0 0.0 7.5 10.0
4) ppk 0.0 0.1 0.5 0.0 0.2 0.4 0.0 0.2 0.6 0.0 0.2 0.8
5) vm 450 800 1350 200 400 550 180 250 550 5 50 300
6) SR 25 35 45 25 35 40 15 30 35 25 25 35
7) PHV 0.06 0.06 0.20 0.00 0.01 0.10 0.00 0.00 0.05 0.00 0.00 0.01
8) Pc 2.5 3.0 4.5 2.5 3.0 4.8 3.0 3.0 5.0 2.5 3.0 5.0
9) c 0 1 1 0 1 1 0 1 1 0 1 1
10) Nth 1 2 3 1 1 1 1 1 1 1 1 1
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High
volume
Moderate
volume
Low
volume
Attribute > 700 vph 100 – 700 vph < 100 vph
Width of outside lane *
Width of bike lane * * *
Width of shoulder ** * *
Proportion of occupied
on-street parking ** * **
Vehicle traffic volume ** **
Vehicle speed
Percent heavy vehicles ** *
Pavement condition
Presence of curb
Number of through lanes
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Current
Proposed
Improvement
Proposed
Improvement
Conditions Scenario 1 Scenario 2
A 70 78 84
B 7 8 5
C 10 8 5
D 7 3 3
E 3 1 1
F 3 2 2
BLOSGreat Bicycle Suitability… …But does it go anywhere?
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CALCULATE COMMUNITY-WIDE BIKEABILITY
Tool 2
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• Bicycle Suitability Perceived comfort and safety of a segment of street or pathway
• Bikeability Perceived comfort and safety of network connectivity for accessing important destinations
• Bicycle Friendliness
Perceived comfort and safety of all aspects of bicycle travel, including bikeability, laws and policies to promote bicycling, education efforts to encourage bicycling, and general acceptance of bicycling throughout the community
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[Bikeability Demonstration video]
http://www.youtube.com/watch?v=2Wi14vy7ZU4
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Conclusion
BLOS has plenty of room
for improvement, but ….
…in the meantime BLOS provides a means for interesting and useful analysis.
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Thank you…
…Questions??
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Tool 1: Calculate Bicycle Level of Service Callister, D. and Lowry, M. (2013). “Tools and Strategies for Wide-scale Bicycle Level of
Service Analysis.” ASCE Journal of Urban Planning and Development, Vol. 139, No.4, p. 1-8.
Tool 2: Calculate Community-wide Bikeability Lowry, M., Callister, D., Gresham, M. and Moore, B. (2012). “Assessment of
Communitywide Bikeability with Bicycle Level of Service.” Transportation Research Record:
Journal of the Transportation Research Board, 2314, pp. 41-48.