Safe Streets and Twenty is Plenty PresentationUpdate on the
Safe Streets
Report
and
20 is Plenty
March 8, 2022
City Council Special Meeting
Agenda
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2
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4
Key findings
Relationship to Core Arterial Network
Vision Zero Action Plan
Next steps
Key findings –Safe Streets Report
Key Findings –20 is Plenty
1 Speeds remain largely unchanged
2
Street design had a demonstrable
impact on vehicle speeds3
Boulder’s results in line with other
cities who have reduced speed limits
5
Findings align with the Safe Streets
Report –severe crashes happening
on arterials, not local streets
6 Findings inform future speed
management strategies
7
Findings align with recent Council
direction to adjust the city’s speed
management strategies and programs
4 Changing street design is most effective
approach to reduce speeds
Relationship to Core Arterial Network
Map of All Crashes (2018-2020)Proposed Core Arterial Network
Relationship to Core Arterial Network
•65% of severe crashes occurred on arterial streets.
•Most speeding crashes, particularly those that result in severe
crashes, occur on arterial streets.
•Programs to address local streets require extensive community
engagement and staff time.
•The highest benefit-cost ratio in terms of potential crash reduction
can be achieved focusing on arterial streets.
Relationship to Core Arterial Network
•Many projects along arterials are already underway:
o 30th St./Colorado Ave. Protected Intersection (Construction)
o North Broadway Reconstruction (Construction)
o 28th St. Improvements Project (Design)
o 28th St./Colorado Ave. Protected Intersection (Design)
o 30th St. Vertically Separated Bike Lanes (Design)
o Iris Ave./15th St. Pedestrian Crossing Enhancement (Design)
o E. Arapahoe Ave. Multi-Use Path Enhancements (Design)
•Key focus areas: pedestrian and bicycle facility enhancements
and traffic signal system upgrades
Vision Zero Action Plan
Seamlessly integrate into departmental work plans
Allow for direct and candid dialogue with TAB and
City Council
Serve as playbook to achieving Vision Zero
Assure accountability and bold thinking
Vision Zero Action Plan
•Use data-driven approach
•Identify proven safety countermeasures
o Reactive, crash patterns
o Proactive, systemic/risk factors
•Complement and enhance the Core Arterial Network
Next Steps
Finalize Safe Streets
Report, 4th Edition 20221
Begin update to Vision
Zero Action Plan
2 Finalize Evaluation of 20
is Plenty Summary Report
3
4 Begin work on Core
Arterial Network projects
Questions for Council
1.What feedback does Council have regarding the Draft Safe Streets Report, 4th Edition, 2022?
2.What feedback does Council have regarding the 20 is Plenty Evaluation?
3.What feedback does Council have regarding the proposed approach for completing the Vision Zero Action Plan in 2022?
Contact Devin Joslin, PE, PTOE
Principal Traffic Engineer
303-441-3289
joslind@bouldercolorado.gov