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Settling the Score: Street Performance Measures-- Community Wide Bicycle Level of Service Analysis
- 1. Pro Walk Pro Bike 2014 Mike Lowry, University of Idaho
- 2. Outline 1.Background 2.Bicycle Level of Service Tool 3.Community-wide Bikeability Tool
- 3. 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
- 4. 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
- 6. 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
- 7. BICYCLE LEVEL OF SERVICE
- 10. CALCULATE BICYCLE LEVEL OF SERVICE Tool 1
- 11. [BLOS Demonstration video] http://www.youtube.com/watch?v=k3ch1J9ugmM
- 13. CurrentProposed ImprovementProposed ImprovementConditionsScenario 1Scenario 2A707884B785C1085D733E311F322BLOS
- 14. 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? Percent of Respondents (%) 76 67 66 58 48 43 42 41 31 12
- 15. BICYCLE LEVEL OF SERVICE
- 16. 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
- 18. 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
- 19. 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 Great Bicycle Suitability… …But does it go anywhere?
- 20. CALCULATE COMMUNITY-WIDE BIKEABILITY Tool 2
- 21. •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
- 23. [Bikeability Demonstration video] http://www.youtube.com/watch?v=2Wi14vy7ZU4
- 25. Conclusion BLOS has plenty of room for improvement, but …. …in the meantime BLOS provides a means for interesting and useful analysis.
- 27. 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.