evaluating the summit street protected bicycle lanes · 2016-05-25 wednesday 223 225 226 2016-05-26...
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Evaluating the Summit Street
Protected Bicycle Lanes
Ohio Transportation Engineering
Conference
October 11, 2017
Agenda
• Overview of Project, Methodology, and Criteria
• Before and After Counts and Crashes
• Results of Design Element Video Analysis
• Next Steps
Project Overview
Timeline• September 2015: Paving starts
• November 25, 2015: Protected
bicycle lanes open to traffic with
temporary signs at signals
• July 2016: 11th Ave signal complete
• August 2016: Remaining signal
work begins
• September 9, 2016: Signal work
11th Ave to 17th Ave complete
• January 7, 2017: Turn box signs
• February 1, 2017: Signal work @
Lane Ave complete
• Today: Complete
Protected Bicycle Lanes
Conventional Bicycle Lanes
Conventional
Bicycle Lanes
Conventional
Bicycle LanesYou are here
1.5 mi
August 2014
July 2016
August 2015
July 2016
Evaluation MethodologyCriteria Data Collection
Levels of bicycling and
walking
Before and after bicycle
counts
Levels of overall and injury
crashes
Crash Reports
Mid-block user position Video capture of design
elements
Bicycle-motor vehicle-
pedestrian interactions
Video capture of design
elements
Evaluation CriteriaCriteria Positive Indicators Negative Indicators
Levels of bicycling and
walking
Higher levels of bicycling and
walking
Lower levels of bicycling
and walking
Levels of overall and
injury crashes
Decrease or stagnation of
injury crashes
Decrease in crash injuries to
pedestrians and bicyclists
Increase in injury crashes
Significant increase in
pedestrian injuries due to
bicyclists
Mid-block user position User positions match
expectations
User positions do not
match expectations after
mitigation
Bicycle-motor vehicle-
pedestrian interactions
Limited conflicts associated
with design elements
Significant conflicts
associated with design
elements
Traffic control
compliance
High compliance with traffic
control
Low compliance with traffic
control
Level of Bicycling
• Before (2015): 110-150
• After (Winter 2016): 50-100
• After (Spring 2016):210-250
• After (Fall 2016):310-400
• After (Spring 2017): 200-250
• Before: ~130; After: ~230 ���� ~75% Increase
Date DayOfWeek 11th Ave Chittenden Ave 12th Ave 13th Ave Alley s/ 15th @ 17th Ave n/ 17th Ave 18th Ave Lane-Northwood Maynard Ave Maynard-Clinton Tompkins Hudson
2015-05-07 Thursday 186 139
2015-05-08 Friday 186 102
2015-05-09 Saturday 152 179
2015-05-10 Sunday 115 126
2015-05-11 Monday 113 130
2015-05-12 Tuesday 130 126 124
2015-05-13 Wednesday 158 160 181
2015-05-14 Thursday 187
2015-05-15 Friday 222
2015-05-16 Saturday 177
2015-05-17 Sunday 129 59
2015-05-18 Monday 127 187
2015-05-19 Tuesday 236 288
2015-06-02 Tuesday 117 116 118 101 71
2015-06-22 Monday 165
2015-12-15 Tuesday 110 118
2015-12-16 Wednesday 83
2016-01-13 Wednesday 44
2016-03-09 Wednesday 88 130 142
2016-05-18 Wednesday
2016-05-19 Thursday
2016-05-23 Monday
2016-05-24 Tuesday
2016-05-25 Wednesday 223 225 226
2016-05-26 Thursday 157 162 182
2016-05-27 Friday 218 194 196
2016-05-28 Saturday 99 78 145
2016-05-29 Sunday 102 98 122
2016-05-30 Monday 174 157 176
2016-05-31 Tuesday 156 139 203
2016-06-01 Wednesday 157 135 168
2016-06-02 Thursday 133 143 216
2016-06-03 Friday 167 152 204
2016-06-04 Saturday 120 106 134
2016-06-05 Sunday 116 135 173
2016-06-06 Monday
2016-06-07 Tuesday
2016-06-08 Wednesday
2016-06-22 Wednesday 209 235 260 96
2016-08-24 Wednesday 79
2016-09-19 Monday
2016-09-20 Tuesday 252 304 310 439
2016-09-21 Wednesday 360 281 188
2016-09-22 Thursday 459 294 297
2016-09-23 Friday 449 405 233
2016-09-24 Saturday 348 261 228
2016-09-25 Sunday 385 235 246
2016-09-26 Monday 182 256 214
2016-09-27 Tuesday 397 382 279
2016-09-28 Wednesday 185 152 107
2016-09-29 Thursday 272 201 148
2016-09-30 Friday 221 121 112
2016-10-01 Saturday 343 234 220
2016-10-02 Sunday 326 243 189
2016-10-03 Monday 392 338 260
2016-10-04 Tuesday 401 316 275
2016-10-05 Wednesday 448 333 265
2016-10-06 Thursday 445 343 282
2016-10-07 Friday 149 104 73
2016-10-19 Wednesday 26
2016-12-15 Thursday 22 33 35 23
166
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09:30
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09:00430
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10:15
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06:00
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11:00
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09:30
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10:45
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11:00
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10:15
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10:13245
10:30
Spring 2015
Winter 2016
Spring 2016
Fall 2016
Quality Counts - Carpenter Marty
Miovision - DPS Staff
Ecocounter Tubes - Automatic
PBL Opens
Construction
PBL Opens
Construction
Bicycle Crashes
• 2011-2014
– 6 Total Crashes, 1 Fatal, 5 Non-Incapacitating Injury
• 2016-2017 (through September 15)
– 24 Total Crashes• 0 Fatal, 1 Incapacitating, 14 Non-Incapacitating, 5 Possible Injury, 4 No Injury
– 16 involving people using completed protected bike lanes
– 8 involving interim conditions or bicycles not using protected bike lanes
– 7 involving EB vehicles with stop sign control
• 4 occurring at 14th Ave, 2 at Wyandotte Ave, 1 at 18th Ave
– 3 involving SB right hooks at un-signalized locations
– 4 involving red light running at signalized intersections
– 2 involving through vehicles at left turn only intersections
Video Analysis
• Over 500 hours of video analyzed at 10 locations
• Over 5000 bicyclists observed
• <1% of bicyclists observed interacted with a motor
vehicle
• Among all observations:
– 2 major conflicts
– 3 substantial conflicts
– 10 minor conflicts
– 20 precautionary conflicts
What is a conflict?• Not every bicycle-pedestrian-motor vehicle interaction
• Methodology from June 2014 National Institute for Transportation and
Communities report NITC-RR-583
• Interaction Types:
– Major: near collision with emergency braking and/or change of direction
– Substantial: emergency braking and/or change of direction
– Minor: precautionary braking and/or change of direction
– Precautionary: low-risk interaction with minor change in direction or speed
– No conflict: no change in direction or speed due to interaction
• Record timestamp from every interaction to facilitate verification
• http://bikeportland.org/wp-content/uploads/2014/06/NITC-RR-
583_ProtectedLanes_FinalReportb.pdf
Design Elements
• Protected bicycle lane configuration
• Protected bicycle lane termini
• Signalized intersection
– Two-stage turn queue box
– Bicycle-only turn lane
• Un-signalized intersection
• Alley crossing
• driveway crossing
• Bus stop
Protected Bicycle Lane Configuration
Positive Indicator:
• User positions match expectations
Results:
• Nearly all people riding bikes are using the
protected bicycle lanes.
• Sidewalk riding has decreased (21% to 1%)
• Some people are choosing to ride their bicycles
in the travel lanes. No conflicts were observed
but there were 2 crashes.
Unanticipated users of protected bicycle lanes:
• Moving vans
• Landscaping equipment trucks
• Joggers year-round
Protected Bicycle Lane Termini
Positive Indicators:
• Limited conflicts at signal
• High compliance with traffic
control
Results:
• 0.3% conflict rate among 667 observations
• 1 crash involving person riding bike south of
11th wrong way northbound and crossing
when 11th had green
Signalized Intersections
Positive Indicators:
• Limited conflicts at signal
• High compliance with traffic control
Results:
• 0.23% conflict rate among 2588 observations
• 8 crashes at signalized intersections
• 3 involving interim conditions
Two-Stage Turn Queue Box
Positive Indicators:
• High usage of turn box for turning bicyclists
Results:
• 1 conflict in 89 observations of turn box movement
• No crashes related to turn boxes
• More detailed evaluation under FHWA experiment
Conclusion: Defer to FHWA experiment
Bicycle-Only Turn Lane
Positive Indicators:
• High usage of bicycle-only turn
lane or through lane for
intended movements
Results:
• 75% usage among people making turn lane movement
• 1 conflict in 38 observations of turn lane movement
• No crashes related to bicycle-only turn lanes
Un-Signalized Intersections
Positive Indicators:
• Limited conflicts at
intersection
• Some conflicts at intersection
that are later mitigated
Results:
• 2.3% conflict rate among 1003 observations
• 9 crashes at un-signalized intersections
Through Prohibition
Positive Indicators:
• Compliance with through prohibition
Results:
• 2 crashes involving WB thru vehicles and bikes (1 each at
Maynard and 13th)
• 27-45% compliance with through prohibition at Tompkins
• 1 conflict with WB thru vehicles among 418 bike
observations at Tompkins
Driveway Crossings
Positive Indicators:
• Limited conflicts at driveway
• Some conflicts at driveway
that are later mitigated
Results:
• 0 conflicts among 418 observations
• No crashes related to driveway crossings
Alley Crossings
Positive Indicators:
• Limited conflicts at alley
• Some conflicts at alley that are
later mitigated
Results:
• 0.59% conflict rate among 676 observations
• 2 crashes – both occurred on consecutive
Wednesday evenings
Bus Stop
Positive Indicators:
• Limited conflicts at bus stop
Results:
• 0 conflicts among 1510 observations
• No crashes related to bus stops
Design Element Summary
Design Element Observations Conflicts Crashes
Protected bike lane terminus 667 3 1
Protected bike lane configuration 1102 2 2
Signalized Intersection 2588 6 8
Two-stage Turn Queue Box 89 1 0
Bicycle-only Turn Lane 38 1 0
Unsignalized intersection 1003 23 9
Through Prohibition 418 1 2
Alley Crossing 676 4 2
Driveway Crossing 418 0 0
Bus Stop 1510 0 0
Next Steps
• Continue to evaluate signalized and unsignalized
intersections:
– Eastbound vehicles approaching stop control
– Compliance with traffic signals
• Complete first evaluation report
• Update evaluation plan to reflect actual project
completion date and first evaluation report
