HomeMy WebLinkAbout04 03 2017 CR21TH13 Joint MeetingApril 3, 2017
Agenda
Introductions
Collaborative Project Approach
Understanding the Need for the Project
The CSAH 21/Main Avenue Dilemma
Public Engagement Process
Next Steps
Public Comment
Collaborative Project Approach
Define the Problem
Establish Goals and
Objectives
Develop Alternatives
Evaluate and
Provide
Recommendations
Develop
Implementation
Plan / Report
Collaborative Project Approach
3 Major Steps in Project Development and Delivery
1.Preliminary Design (Defining WHAT will be constructed)
•May →December 2017
2.Final Design (Defining HOW it will be constructed)
•January →December 2018
3.Construction
•May →October 2019
Understanding the Need
TH 13/CH 21 Intersection
Existing Daily Traffic Volumes
TH
1
3
14,300
M
a
i
n
A
v
e
.
Understanding the Need
TH 13/CH 21 Intersection
1.Current Conditions
•Traffic Volumes
•Signal Green Time
•Vehicle Delays
•Traffic Safety
2.Future Conditions
Understanding the Need
TH 13/CH 21 Intersection
Current Traffic Patterns and Demands
AM PEAK HOUR
Understanding the Need
TH 13/CH 21 Intersection
Current Traffic Patterns and Demands
PM PEAK HOUR
Understanding the Need
TH 13/CH 21 Intersection
Traffic Signal Timings
Split Phasing
Conventional Phasing
2016 PM Peak Hour (160 Sec. Cycle Length)
N.B. T.H. 13 –93 sec
S.B. T.H. 13 –93 sec
E.B. C.S.A.H. 21 –35 sec
W.B. C.S.A.H. 21 –35 sec
N.B. T.H. 13 –98 sec
S.B. T.H. 13 –98 sec
E.B. C.S.A.H. 21 –53 sec
W.B. C.S.A.H. 21 –71 sec
Understanding the Need
TH 13/CH 21 Intersection
Current Traffic Delays
Understanding the Need
TH 13/CH 21 Intersection
Current Traffic Delays (PM Peak Hour)
Split Phasing Conventional Phasing
Understanding the Need
TH 13/CH 21 Intersection
Traffic Safety –5 year crash history
Understanding the Need
CH 21 between Duluth Ave and TH 13
Historic Traffic Volume Trends & Forecasts
20-Yr
Historical
7-Yr
Historical
CSAH 21 West of TH 13 2.1%6.0%
CSAH 21 East of TH 13 4.9%3.4%
TH 13 North of CSAH 21 -0.6%-3.3%
TH 13 South of CSAH 21 0.6%-1.3%
1.3%1.1%
Growth Rate
Roadway Segment
Intersection
2030
Forecasted
2050
Forecasted
2038
Forecasted
CSAH 21 West of TH 13 3.4%2.3%3.0%
CSAH 21 East of TH 13 4.6%3.3%3.0%
TH 13 North of CSAH 21 1.3%2.2%1.0%
TH 13 South of CSAH 21 1.1%1.7%1.0%
2.7%2.4%2.1%
Growth Rate
Roadway Segment
Intersection
≈33,000 vpd
≈21,000 vpd
The CH 21/Main Ave Dilemma
Why a change is necessary?
Understanding the Need
CH 21/Main Avenue Intersection
Current Traffic Patterns and Demands
AM PEAK HOUR
Understanding the Need
CH 21/Main Avenue Intersection
Current Traffic Patterns and Demands
PM PEAK HOUR
The CH 21/Main Ave Dilemma
CH 21 at Main Avenue Intersection
Traffic Safety –5 year crash history
Conflict Points at Intersections
Traffic Safety Discussion
Conflict Points
2032
4
Influence Areas of Intersections
Traffic Safety Discussion
Physical and Functional Area of Intersection
30 mph Design Speed
The CH 21/Main Ave Dilemma
All-Way Stop Capacity Limitation
Historic Traffic Volume Trends & Forecasts
20-Yr
Historical
7-Yr
Historical
CSAH 21 West of TH 13 2.1%6.0%
CSAH 21 East of TH 13 4.9%3.4%
TH 13 North of CSAH 21 -0.6%-3.3%
TH 13 South of CSAH 21 0.6%-1.3%
1.3%1.1%
Growth Rate
Roadway Segment
Intersection
2030
Forecasted
2050
Forecasted
2038
Forecasted
CSAH 21 West of TH 13 3.4%2.3%3.0%
CSAH 21 East of TH 13 4.6%3.3%3.0%
TH 13 North of CSAH 21 1.3%2.2%1.0%
TH 13 South of CSAH 21 1.1%1.7%1.0%
2.7%2.4%2.1%
Growth Rate
Roadway Segment
Intersection
≈33,000 vpd
≈21,000 vpd
Main Ave. All-Way Stop Capacity
The CH 21/Main Ave Dilemma
All-Way Stop Control –Future Conditions
Traffic Simulation with Expected Traffic Growth
AM
Peak Hour
The CH 21/Main Ave Dilemma
All-Way Stop Control –Future Conditions
Traffic Simulation with Expected Traffic Growth
PM Peak Hour
The CH 21/Main Ave Dilemma
All-Way Stop Control –Future Conditions
Average Delay per Vehicle during Peak Hours
160 seconds
The CH 21/Main Ave Dilemma
All-Way Stop Control –Future Conditions
Functional Area of Intersections Overlap
The CH 21/Main Avenue Dilemma
Two -Way Stop Control Scenario
The CH 21/Main Ave Dilemma
Two -Way Stop Control Scenario
Traffic Simulation with Expected Traffic Growth
AM
Peak Hour
The CH 21/Main Ave Dilemma
Two -Way Stop Control Scenario
Traffic Simulation with Expected Traffic Growth
PM Peak Hour
The CH 21/Main Ave Dilemma
Two -Way Stop Control Scenario
Average Delay per Vehicle during Peak Hours
445
seconds
241
seconds160 seconds
The CH 21/Main Avenue Dilemma
Line of Sight needed to enter CH 21 from Main Ave
Two -Way Stop Control Scenario
The CH 21/Main Ave Dilemma
Two -Way Stop Control Scenario
Line of Sight blocked by Vehicle Queues
The CH 21/Main Ave Dilemma
Roundabout Scenario
Roundabout Scenario
The CH 21/Main Ave Dilemma
Roundabout Scenario
Traffic Simulation with Expected Traffic Growth
AM
Peak Hour
The CH 21/Main Ave Dilemma
Roundabout Scenario
Traffic Simulation with Expected Traffic Growth
PM Peak Hour
The CH 21/Main Ave Dilemma
Roundabout Scenario
Average Delay per Vehicle during Peak Hours
160 seconds
The CH 21/Main Ave Dilemma
Traffic Signal Scenario
Traffic Simulation with Expected Traffic Growth
AM
Peak Hour
The CH 21/Main Ave Dilemma
Traffic Signal Scenario
Traffic Simulation with Expected Traffic Growth
PM Peak Hour
The CH 21/Main Ave Dilemma
Traffic Signal Scenario
Average Delay per Vehicle during Peak Hours
160 seconds
The CH 21/Main Ave Dilemma
Median Scenario with Traffic Signal at Arcadia Ave
Current Funded Alternative
The CH 21/Main Ave Dilemma
Median Scenario with Traffic Signal at Arcadia Ave
Traffic Simulation with Expected Traffic Growth
AM Peak Hour
The CH 21/Main Ave Dilemma
Median Scenario with Traffic Signal at Arcadia Ave
Traffic Simulation with Expected Traffic Growth
PM Peak Hour
The CH 21/Main Ave Dilemma
Median Scenario with Traffic Signal at Arcadia Ave
Average Delay per Vehicle during Peak Hours
160 seconds
The CH 21/Main Ave Dilemma
Additional Considerations Needed
Pedestrians and Other Modes
Private Property Impacts
Project Costs and Risks
Existing Business Access and
Visibility
Public Input, Understanding,
and Acceptance
Public Engagement Process
A comprehensive approach to hear every voice
Listen and Understand Individual and Collective
Interests
Communicate Collaborative Project Approach
Find a Solution that is:
Technically Feasible
Economically Viable
Environmentally Compatible
Publically Acceptable
Keep Public Informed on “Why”
Public Engagement Approach
Face -to-face
Understand specific
concerns
Inform choice of
alternatives
Online
Provide broader
outreach efficiently
Connect with online
conversations
Face -to-Face Meetings
Targeted Stakeholder
Discussions
Public Open House
Pop Up Meetings
Reporting Out and
Feedback
Online Engagement
General Project Newsletter
Online Open House –
Materials and Survey
Website and Social Media
Updates (Throughout)
Reporting Out and
Feedback
Key Stakeholder Discussions
Identify key stakeholders
Businesses/EDA
Community residents
Adjacent property owners
Others?
One on one and small group
interviews
What are your concerns?
What would success look
like?
Summary memo to City and
County Elected Officials
Open Houses
Inform about planned
project and alternatives
Present options that are
open for input
Intersection options,
streetscape, signage, etc.
Interactive Polling by
participants
Summary memo to City and
County Elected Officials
Pop -Up Meetings
Attend community events
where people are gathered
Provide additional
opportunity for input
How do you use the
corridor?
What are top priorities for
this corridor?
Summary memo to City and
County elected officials
Online Engagement
Project newsletter
Electronic or mailed out
Online updates
Project website
City social media
Online open house
materials
Proposed Engagement Timeline
Task Time
Stakeholder Meetings: Initial Conversations April/May 2017
Open House #1: Issues and Goals, Project Overview June 2017
Pop Up Meetings/Online Outreach July-August 2017
Open House #2: Project Alternatives and Options September 2017
Stakeholder Meetings: Alternatives; Online Outreach October 2017
Open House #3: Recommended Alternative November 2017
Open House #4: Preparation for Construction Mid-2018 (?)
Meetings with Project Management Team, City/County
Leadership
As Needed
Next Steps
The CH 21/Main Ave Dilemma
Corridor Context –CH 82 to Franklin Trail
Downtown Prior Lake Context
TH 13/CH 21 Intersection Alternatives
Background Activities Regardless of Alternative
Next Steps: Corridor Context
CH 82 to Franklin Trail
Land use compatibility
Business and residential
Traffic control, speed,
and safety
Balancing access and
mobility
Balancing pedestrian
and auto
Optimize use of space
Next Steps: Downtown Context
Business Access and Visibility
Pedestrian Safety
Ped crosswalks and connections
Visual Quality and Brand
Economic competitiveness
Business district vitality
Redevelopment options
Character, streetscape, public realm
Next Steps: TH 13/CH 21 Options
Funded Alternative
Left turn addition
Revised signal
operations
Multilane Roundabout
consideration
Others
Next Steps: Other Activities
Topographic and
Right-of-Way Survey
Traffic Data Collection
Geotechnical Analysis
Environmental
Considerations
Current Conditions
TH 13/CH 21 Intersection
Traffic Delays (AM Peak Hour)
Split Phasing Conventional Phasing
Current Conditions
10-Year Crash Data
Main Ave at CSAH 21 CSAH 21 at TH 13
Understanding the Need
CH 21/Main Avenue Intersection
Current Traffic Patterns
Conventional Phasing Capacity (=980 veh/hr)
Split Phasing Capacity (=630 veh /hr)