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Divya Nagananda and Dr. Emelinda M. Parentela California State University, Long Beach June 26, 2012 Santa Barbara ITE 2012 An Evaluation of Bike Lanes
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Overview Santa Barbara ITE 2012 Introduction Study Area Data Collection Analysis (Accident and Statistical) Online Survey Conclusions
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Introduction Santa Barbara ITE 2012 City of Long Beach Bicycle Master Plan Bicycle Classes – Class I – Class II – Class III
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Bicycle Classes Santa Barbara ITE 2012 Class I Bicycle Lane Class II Bicycle LaneClass III Bicycle Lane Source: Alta Planning + Design, 2009
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Study Area Santa Barbara ITE 2012 Class I - 3rd Street between Daisy Avenue and Atlantic Avenue
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Study Area Santa Barbara ITE 2012 Class II – 2 nd Street between Livingston Drive and Pacific Coast Highway
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Study Area Santa Barbara ITE 2012 Class III - Pacific Coast Highway between Los Coyotes Diagonal and Orange Avenue
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Data Collection Santa Barbara ITE 2012 Accident Data
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Bicycle Accident Location – 3 rd Street Santa Barbara ITE 2012
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Bicycle Accident Location – 2 nd Street Santa Barbara ITE 2012
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Bicycle Accident Location – Pacific Coast Highway Santa Barbara ITE 2012
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Accident Analysis – Primary Cause Santa Barbara ITE 2012
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Accident Analysis – Primary Cause Santa Barbara ITE 2012
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Accident Analysis – Primary Cause Santa Barbara ITE 2012
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Accident Analysis Santa Barbara ITE 2012 Day versus Night
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Statistical Analysis Santa Barbara ITE 2012 Student T-test No significant differences by year in the number of accidents on all locations EXCEPT SIGNIFICANT - 2 nd Street – 2009 Might have caused confusion among motorists and bicyclists 2010 - reduction in the number of accidents Green lane with sharrows is helpful in improving the safety of bikers and motorists Insufficient data to draw definite conclusion
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Online Survey Santa Barbara ITE 2012 Online survey via Kwiksurveys.com Focused on issues related bicycling trend and safety Reached through various bicycle coalitions Got about 90 responses
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Online Survey Responses – Quick Look Santa Barbara ITE 2012 88% respondents rode bicycles
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Online Survey Responses – Quick Look Santa Barbara ITE 2012
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Online Survey Responses – Quick Look Santa Barbara ITE 2012 Bicycling Frequency 37% - 5 to 7 days in a week 29% - 1 to 4 days in a week 34% - Couple of days in a month Bicyclist in a Collision 21% - Motor Vehicles 5% - Other Bicyclists 5% - Pedestrians 15% - No bike lanes 5% - Sidewalk; 3% - Crosswalk
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Online Survey Responses – Quick Look Santa Barbara ITE 2012 Most Common Problems 32% - Not sharing the roadway 32% - Inadequate bicycle lanes/facilities 13% - Vehicles parked on the bicycle lanes 11% - Another bicyclist on the wrong side 6% - motorists opening door without checking Bicycle Class prone to accidents 40% - Class III 35% - Class II 5% - Green lanes with sharrows; 5% - Class I 15% - No Answer
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Online Survey Responses – Quick Look Santa Barbara ITE 2012 Overall Improvements to Enhance Safety 36% - More bicycle lanes 29% - Drivers should be more considerate 19% - Traffic calming measures 6% - Better traffic signals 2% - Better street lighting 8% - No answer
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Conclusions Santa Barbara ITE 2012 Research in Progress Data Still in the Process of Analysis Per Initial Analysis Class III – highest number of accidents Felt to be the least safe Primary Cause varies with Class Class III – due to motorists, pedestrians & wrong side of the road Class II – mostly due to motorists
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Acknowledgements Santa Barbara ITE 2012 Staff, City of Long Beach Mr. David Roseman, Mr. Alan Crawford, and Mr. Steve Tweed Online Survey Respondents
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