Risk-Oriented Design Approach

  • Posted on: Sun, 10/13/2013 - 22:19
  • By: shroedermay
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Common Reasons to Consider Exceptions

  • Impacts to the natural environment

  • Social or right-of-way impacts

  • Preservation of historic or cultural resources

  • Sensitivity to context or accommodating community values

  • Construction or right-of-way costs

 

Risk Management Characteristics

  • Explicitly addresses uncertainty

  • Based on the best available information

  • Part of the decision-making process

Access Management Issues and Techniques at Continuous Flow Intersections (CFI’s)

  • Posted on: Sun, 10/13/2013 - 22:14
  • By: shroedermay
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Outline

  • What is a CFI?

  • Why consider a CFI?

  • Access Management Issues at a CFI

  • Potential Access Solutions

  • Questions Comments

 

Potential Access Solutions

  • Inter-parcel Access

  • Service Roads

  • Partial Median Openings

  • Right-In Only Driveways

  • Right In-Right Out Driveway on CFI Leg

  • U Turns

  • Purchase Access Rights

  • Relocate/Add Driveway

Access Management Solutions with Roundabouts

  • Posted on: Sun, 10/13/2013 - 22:10
  • By: shroedermay
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Well-designed Modern Roundabouts enhance the achievement of Access Management principles

  • Maintain Integrity of Arterials

  • Balance Mobility and Access

  • Improve Safety

  • Reduce
    Congestion

  • Extend the life of
    Infrastructure

 

 

Roundabout Operational & Safety Characteristics:

  • Driveway and intersection spacing versatility

  • Geometric flexibility (properly designed)

  • Less queuing

Access Management Considerations at Four Innovative Intersections

  • Posted on: Sun, 10/13/2013 - 22:06
  • By: shroedermay
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Topics

  • New Jersey Jughandle Intersection (NJJI)

  • Displaced Left Turn Intersection (DLF)

  • Median U-Turn Intersection (MUT)

  • Restricted Crossing U-Turn Intersection (RCUT)

Summary

  • All unconventional intersection designs are conceived to take advantage of the local traffic pattern

  • Their main design objectives are to improve LOS of critical movements, maintain or improve overall safety at main intersection, and generate tolerable delays to non-critical movements

Access Management Considerations for High-Capacity Multi-lane Roundabouts

  • Posted on: Fri, 08/30/2013 - 23:23
  • By: fbroen
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Case Studies

Roundabouts Enhance the Achievement of Access Management Principles

  • Maintain Integrity of Arterials
  • Balance Mobility and Access
  • Improve Safety
  • Reduce Congestion
  • Extend the life of Infrastructure
  •  

Roundabout Operational Characteristics Allow for:

Massachusetts Access Management Design

  • Posted on: Fri, 08/30/2013 - 23:04
  • By: fbroen
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Massachusetts DOT

Outline

  • Functional Classification System
  • Land Use Controls
  • Corridor Planning
  • Permitting
  • Project Design

Where do we go next

  • Complete Streets training,
  • Expanding adoption to private developers getting permits,
  • Training for municipalities
  • Benefits of Multimodal system to AM
  • Implement Guidelines
  • Performance Measures

State Highway 6 Access Management Study North

  • Posted on: Sat, 07/06/2013 - 21:58
  • By: fbroen
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Case Studies Slide Titles SH 6 Access Management Study, North Study Area Land Uses Driveway Density LOS AM/PM Project History Continuous Public Involvement Public Involvement Exercises Traditional Access Management Tools Raised Medians Signal Modification Addition of Turn Lanes Traditional Access Management Tools Internal Circulation, added Backage Roads and Removal of Signals made Unnecessary Innovative Tools – more green time Innovative tools - Continuous flow intersection (CFI) Innovative tools – Median U-turn intersection Innovative tools Recommendations Results