Grassroots Implementation of Access Management: A Case Study from Peoria, Arizona

  • Posted on: Tue, 10/08/2013 - 17:06
  • By: shroedermay
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The First Steps

  • Access Management Champion
  • Get buy-in from internal staff and management
  • Secure funding for activities (not always required)
  • Outreach
  • Presentations
  • Websites
  • One-on-one Interactions

 

Next Steps (Peoria)

ANALYSIS OF ACCESS MANAGEMENT IMPLEMENTATION: A SUCCESS STORY

  • Posted on: Tue, 10/08/2013 - 15:45
  • By: shroedermay
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Case Studies

MY QUESTION:

  • Is there a reduction in accidents after access management is implemented?
  • If yes, is it statistically significant?

CONCLUSIONS

  • Access Management has a significant impact on accident severity and societal costs.
  • Access Management results in a significant reduction during PM peak travel
  • This knowledge can be helpful when programming future projects.

Access Management: A Developer’s Perspective

  • Posted on: Tue, 10/08/2013 - 15:43
  • By: shroedermay
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Three Examples from a Developer’s Perspective

  • A 15 acre +/- development that was ultimately denied as they could not secure reasonable access to accommodate the site traffic.
  • A redevelopment project that was ultimately approved though unable to meet any of the access management standards.
  • An approval to allow additional access to support an existing development and improve on-site circulation concerns

Success

Access Management: A City’s Perspective

  • Posted on: Tue, 10/08/2013 - 15:41
  • By: shroedermay
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Themes

  • Cities believe in the importance and value of access management
  • Access management has to be undertaken hand-in-hand with other municipal considerations
  • Access management is one of a handful of tools that should be used for the betterment of the community

Municipal Realities

  • Cities are a study in conflicting goals and compromises
  • Rarely does one goal trump all others . . . even the safety goal!
  • Politics is a daily issue
  • Balancing needs is key to success

 

Conclusions

NCHRP Synthesis Report 404: State of the Practice in Highway Access Management

  • Posted on: Tue, 10/08/2013 - 15:40
  • By: shroedermay
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Overview of Synthesis Survey

  • All 50 state DOTs contacted – Targeted key individuals with access management responsibilities at each state DOT
  • 69-question survey was administered online:
  • Email distribution to DOT contacts in all 50 states
  • ITE Traffic Engineering Council
  • ITE Transportation Planning Council
  • National Association of County Engineers
  • Association of Metropolitan Planning Organizations

Profiles of Contemporary Practices

LADOTD’s Approach to Access Management

  • Posted on: Tue, 10/08/2013 - 15:38
  • By: shroedermay
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First Steps

  • Updated the existing “median policy”
    • no 5 lanes
    • median opening spacing
    • median opening types
  • Created “signal spacing and warrant policy”
    • established ½ mile spacing
  • Created “roundabout policy”
  • Policies were signed by the Chief Engineer
    • after 2 years are now finally being “tested”

Future

Access Retrofit of a Corridor And Other Masochistic Behaviors

  • Posted on: Tue, 10/08/2013 - 15:36
  • By: shroedermay
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Market Characteristics

  • How much development can be realistically absorbed in this area?
  • How will market area be sustained?
  • What message will be crafted for key stakeholders?

Measures of Effectiveness

  • Safety
  • Market Area (Sustainability)
  • Walkability
  • Natural Environment

Implementation and Integration

  • Public Involvement/Information
  • Access Controls
  • Land Use Controls
  • Formative Measures/Revisiting

Design Considerations of a Corridor Retrofit

Safety Effects of Median Modification Using Quick Kurb (QK)

  • Posted on: Tue, 10/08/2013 - 15:34
  • By: shroedermay
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Conclusions & Recommendations

  • Effective Temporary Median Treatment
  • Construction: Shorter Time and Less Cost
  • Safety Effects
  • Reduction on Left-Turn Related Crashes
  • Total Crashes: Reduced for most of applications except full median closure from bi-directional median opening
  • Benefit/Cost Ratio
  • Bi-directional Channelization: 8-12
  • One-directional Channelization: 3-5

 

Limitations & Next Step

Safety and Economic Impacts of Converting Frontage Roads from Two-way to One-way Operation: Preliminary Findings

  • Posted on: Tue, 10/08/2013 - 15:27
  • By: shroedermay
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Project Objectives

  • Develop accurate information to communicate types of:
  • Safety impacts
  • Accident Modification Factors
  • Economic impacts

 

 

Background

  • Frontage roads
    • Start two-way (in rural)
  • Conversion “pressures”
    • Land development
    • Increased traffic volumes, signal operation

Survey Recommendations

Highway 72 Corridor Study

  • Posted on: Tue, 10/08/2013 - 15:05
  • By: shroedermay
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What are the big issues?

  • It’s the economy!
  • Access to US 72
  • New connections
  • Safety – truck conflicts
  • Growth and traffic congestion
  • Tourism/visitors

 

Tools for implementation

  • Zoning
  • Subdivision regulations (major street plan)
  • Policy decisions
    • ALDOT – signals, median openings
    • Local agencies – urban services
  • Master Plans and Corridor Management Agreements
    • Putting it all together

Slide Titles

Safety and Economic Impacts of Converting Frontage Roads from Two-way to One-way Operation: Preliminary Findings

  • Posted on: Mon, 09/23/2013 - 21:10
  • By: fbroen
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Project Objectives

  • Develop accurate information to communicate types of:

  • Safety impacts

  • Accident Modification Factors

  • Economic impacts

 

 

Background

  • Frontage roads

    • Start two-way (in rural)

  • Conversion “pressures”

    • Land development

    • Increased traffic volumes, signal operation

Survey Recommendations

  • Complete conversions as quickly as possible

Highway 72 Corridor Study

  • Posted on: Mon, 09/23/2013 - 21:07
  • By: fbroen
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What are the big issues?

  • It’s the economy!

  • Access to US 72

  • New connections

  • Safety – truck conflicts

  • Growth and traffic congestion

  • Tourism/visitors

 

Tools for implementation

  • Zoning

  • Subdivision regulations (major street plan)

  • Policy decisions

    • ALDOT – signals, median openings

    • Local agencies – urban services

Safety Impacts of Access Management: Two Case Studies

  • Posted on: Mon, 09/23/2013 - 21:04
  • By: fbroen
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Presentation Outline

  • Case Study 1-Nebraska Avenue Lane Diet

    • Before: 4-lane undivided

    • After: 2-lane divided with TWLTL

  • Case Study 2-Hillsborough Avenue Median Installation

    • Before: 6-lane with TWLTL

    • After: 6-lane with raised medians

 

Case Study 1: Discussion

  • Significant Safety Improvement

  • Improvement of all Analyzed Crash Types

  • From Worse to Better than SW Average

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