09_11_17 East_West Corridor Connectivity Study Slide Presentation UpdatedEast--West Corridor West Corridor
Connectivity Study Connectivity Study ––
Study Recommendations
November 17, 2009
HDR
in association with
IIW Engineers & Surveyors, P.C.
Presentation Outline
•Review Study Process
•Review Previous Input
–City Council Workshop
–Stakeholders
–Long Range Planning Advisory Commission
•Review Recommended Concept
–Process to Identify
–Recommended Concept
–Improvement Priorities
•Next Steps
Review Review
Technical
Corridor Draft Study
Kickoff
ScreeningResults
Meeting
Public Involvement Public Involvement
Corridor ScreeningReview Draft Study Results
Review
City Council City Council
Concepts /
Corridor ScreeningReview Draft Study Results
Screening
Data Collection
Corridor Concept Development / Prepare
ScreeningTraffic SimulationReport
Corridor Screening
Traffic Projections (ECIA)
Consultant Data Collection
Review Data Collected
Site Visits
Prepare Draft Report
Identify Bottlenecks
Perform Planning Level Capacity
Videotape Corridors
Incorporate City / Public Input
Identify Potential Improvements
Checks
Travel Time Runs
Prepare Final Report
Traffic Simulation
Brainstorm Range of Potential
Concept Development
Improvements
Obtain City Data
Project Sequencing
Perform TransCAD Screening Analysis
GIS
Document Analysis
Master Trail Plan
Transit Maps
Existing Utilities
Evaluation / Refinement Criteria
Traffic Operations
Evaluation Criteria
Obtain ECIA and
Construction Costs / Impacts
Diversion Potential
Iowa DOT Data
Diversion Potential
Impact on US 20 Traffic
LRTP
Public / City Council Input
General Costs / Impacts
Traffic Counts
Public Acceptance
Public / City Council Input
Public Acceptance
Previous City Council Work
Session
–Presented July 2009
–Reviewed Corridor Screening Scenarios 19 –
22, TDM Strategies & Typical Sections
Incorporating Bicycle Accommodations
–General Direction
•Major ROW or Parking Impacts not Feasible
•ROW Impacts may be Considered on University
Avenue Overlap Section
•Enhanced Bicycle / Pedestrian Accommodations
Should be Considered
Stakeholder/Agency Coordination
•Held September 16 & 17
–11 Individual Meetings
–Presented Recommended Concept
•Signals vs. Roundabouts for University Avenue
Overlap Section
–Priorities
•University Avenue Overlap Section
•Improving Skewed Intersections
Long Range Planning Advisory
Commission Coordination
•Held September 16
–Presented Recommended Concept
•Signals vs. Roundabouts for University Avenue
Overlap Section
–LRPAC Response
•Very Supportive of Roundabouts
•Travel Demand Management
•Complete Streets
•Asbury Road/University Avenue
Process to Identify
Recommended Concept
–Safety
–Traffic Operations
–Complete Streets
–Property Impacts
–Sustainability
–Technical Staff Input
–Stakeholder Input
Complete
Recommend Concept -
Streets
Bike Lanes
A “Complete Street” is safe, comfortable and
convenient for travel via automobile, foot,
bicycle, and transit.
Complete Streets Example
High Visibility Crosswalk
Recommended Concept
Overview
Immediate Recommendation: Reserve
Right of Way
•Existing WilbrichtLn./Asbury Rd.
–NW Corner –Redevelopment Plans Being
Considered
•Asbury Rd./University Ave.
–NE Corner –Currently Vacant
•Delhi St./University Ave.
–Existing House for Sale
Immediate Recommendation: Removing
Parking and Convert to 3-lane Section
•Asbury Road
–East of NW Arterial to University Ave.
•Pennsylvania Avenue
–VizaleeaDr. to University Ave.
•Benefits
–Traffic Operations
–Safety
–Consistent with Long-Term Improvements
Immediate Recommendation:
Add Sharrows
•Asbury Road
–NW Arterial to University Ave.
•Pennsylvania Avenue
–NW Arterial to University Ave.
•University Avenue
–East of LorasBlvd. and west of Booth St.
•LorasBoulevard
–University Ave. to Alta Vista St.
•Benefit –Accommodate Bicyclists
High Priority –University Avenue
Overlap Section
•2 Options Evaluated: Signalized
Intersections and Roundabouts
•Evaluation Considerations
–Safety
–Traffic Operations
–Complete Streets
–Cost
•Coordination
–Technical Staff
–Stakeholders
High Priority –University Avenue
Overlap Section
RoundaboutsSignals
Full Property Acquisitions
1514
Cost (Construction+ ROW)
$5.4M$5.8M
Traffic Operations
AcceptableAcceptable
Safety
PreferredAcceptable
Complete Streets
PreferredAcceptable
High Priority –University Avenue
Overlap Section
•Benefits of Roundabouts
–Safety
•Vehicle-to-Vehicle Conflict Points: 32 versus 8
•Vehicle-to-Pedestrian Conflict Points: 24 versus 8
•Crashes Less Severe
–Slower Speeds
–Left-turn, Right Angle and Head-on Crashes Eliminated
•Single Circulating Direction
–Less Decisions for Drivers
High Priority –University Avenue
Overlap Section
•Benefits of Roundabouts (continued)
–Safety (continued)
•Pedestrians Cross Each Direction of Traffic
Separately
•Bicyclists
–Complete Streets Compatibility
–Reduction in Off-Peak Delay
–Long-term Maintenance Cost Savings
Recommended Concepts
•University Avenue Overlap Section
–Roundabout and Signalized Concepts
–Animation
•Asbury Road east of Northwest Arterial
•University Avenue / LorasBoulevard
•Pennsylvania Avenue
•Asbury Road west of Northwest Arterial
Additional Considerations
•Grandview Ave./Delhi St./Grace St. 5-leg
Intersection
thth
•University Ave./Hill St./W 9St./W 8St.
•University Ave. and Delhi St.
–Acquire Right of Way from LorasBlvd. to 5-
leg Intersection for Bicycle and Pedestrian
Accommodations
Next Steps
•Finalize East West Corridor Connectivity
Study Recommendations
•City Council Endorsement of East-West
Corridor Connectivity Study
•Prioritize Improvements and Incorporate
into CIP and Long Range Transportation
Plans
•Implement Proposed Improvements
Discussion/QuestionsDiscussion/Questions