TRB Access Management AHB70

Increasing the awareness and use of Access Management

Category Archives: Concepts

Oregon Access Management Best Practices Manual

Developing an Oregon Access Management Best Practices Manual: Final Report

The Oregon Department of Transportation has released a report that reviews development of its Access Management Best Practices Manual, which will be used to help transportation professionals quantify and evaluate safety and operational effects of access management strategies.

This Summary Last Modified On: 2/26/2013 from http://www.trb.org/Main/Blurbs/168576.aspx
More information about Oregon’s Access Management Program
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Safe Access is Good for Business

FHWA Primer

FHWA Primer

This primer will address questions you may have about access management and its effect on business activity and the local economy. It focuses on economic concerns that may arise in response to proposed access changes or policies, including potential impacts on business activity, freight and deliveries, parking for customers, and property or resale value of affected property.

View YouTube video on-line  | Read primer

Public Information Meetings for Access Management

TOP TEN COMPLAINTS

David W. Gwynn, Jr., P.E.

TEI Engineers & Planners

Public Information Meetings for Access Management (Top Ten Complaints) pdf

There were several objectives of the project:

  1. To study several recently completed projects which significantly changed the location and frequency of median openings. The study was geared to determine what, if any, traffic operations improvements were attained by implementation of the project.
  2. To determine the opinions of several specific groups regarding these projects. These groups included the general motoring public, local business owners, and law enforcement agencies.
  3. To develop handouts and audio-visual aids to convey the purpose of the Department’s access management guidelines to the general public.

Elements of a Comprehensive Program

The manual provides specific guidance to state, regional and local agencies on developing and implementing an access management program or corridor access management plan. Comprehensive, system-wide access management programs involve the following key elements:

  1. Classifying roadways into a logical hierarchy according to
    function,
  2. Planning, designing, and maintaining roadway systems based
    on functional classification and road geometry,
  3. Defining acceptable levels of access for each class of
    roadway to preserve its function, including criteria for the spacing of
    signalized and unsignalized access points,
  4. Applying appropriate geometric design criteria and traffic
    engineering analysis to each allowable access point, and
  5. Establishing policies, regulations, and permitting
    procedures to carry out and support the program.

State and local agencies may adopt specific policies, directives, regulations, or guidelines that are directly or indirectly related to access management. Access anagement regulations may address a variety of issues, such as access spacing and design, and are more enforceable than guidelines. Local agencies also establish land development regulations that affect access outcomes, such as subdivision regulations and lot dimensional requirements.

Another option is for state transportation agencies or local governments to acquire property access rights through purchase or eminent domain. The acquisition of access rights, while often costly and time consuming, is a strong and long lasting solution.

Some aspects of access management are addressed at the development review stage, in response to a request for a development or connection permit. This may be accomplished through the subdivision or site plan review process of local agencies or during the access permitting process of state agencies. Larger evelopments are often required to submit a traffic impact assessment to assist the agency in its review. Access management is also addressed through roadway design.
Geometric design features, such as interchanges, frontage roads, medians, median openings, auxiliary lanes, driveway design, and intersection hannelization are used to manage access and vehicular turning movements. Geometric design criteria are normally included in design manuals and design objectives are advanced through the roadway improvement process.

Importance of Access Management

With fewer new arterial roadways being built, the need for effective systems management strategies is greater than ever before. Access management is particularly attractive as it offers a variety of benefits to a broad range of stakeholders. By managing roadway access, government agencies can increase public safety, extend the life of major roadways, reduce traffic congestion, support alternative transportation modes, and even improve the appearance and quality of the built environment.

Without access management, the function and character of major roadway corridors can deteriorate rapidly. Failure to manage access is associated with the following adverse social, economic, and environmental impacts:

  • An increase in vehicular crashes,
  • More collisions involving pedestrians and cyclists,
  • Accelerated reduction in roadway efficiency,
  • Unsightly commercial strip development,
  • Degradation of scenic landscapes,
  • More cut-through traffic in residential areas due to
    overburdened arterials,
  • Homes and businesses adversely impacted by a continuous
    cycle of widening roads, and
  • Increased commute times, fuel consumption, and vehicular
    emissions as numerous driveways and traffic signals intensify congestion and
    delays along major roads.

Not only is this costly for government agencies and the public, but it also adversely affects corridor businesses. Closely spaced and poorly designed driveways make it more difficult for customers to enter and exit businesses safely. Access to corner businesses may be blocked by queuing traffic. Customers begin to patronize businesses with safer, more convenient access and avoid businesses in areas of poor access design. Gradually the older developed areas begin to deteriorate due to access and aesthetic problems, and investment moves to newer better-managed corridors.

After access problems have been created, they are difficult to solve. Reconstructing an arterial roadway is costly and disruptive to the public and abutting homes and businesses. The shallow property depth, multiple owners, and right-of-way limitations common to older corridors generally preclude ffective redesign of access and site circulation. In some cases, a new arterial or bypass must be built to replace the functionally obsolescent roadway, and the process begins again in a new location. Access management programs can help stop this cycle of functional obsolescence, thereby protecting both the public and private investment in major roadway corridors.

2010 Access Management Workshop Part 2

Phil Demosthenes
Oct 10, 2010 | 2010 Access Management Confernce

2nd part of workshop: 53 Minutes

View Presentation: http://accessmanagement.info/AM2010/AM1001aDemosthenes/player.html

This workshop will provide in-depth training for planners and engineers on the topic of roadway access management. Workshop content is derived from the Transportation Research Board Access Management Manual as well as short course training materials used for the Access Management Manual Workshop at the 2005 APA Conference in San Francisco (updated in 2009), the National Highway Institute Short Course on Access Location and Design (updated in 2009), and the FDOT Corridor Access Management Short Course. It is divided into two parts. It will address the principles and practice of access management, access management techniques, access permitting and regulation, and access management in planning and project development.

2010 Access Management Workshop Part 1

Kristine Williams
Oct 10, 2010 | 2010 Access Management Conference: Natchez, Missisisippi

Kristine Williams View presentation

This workshop will provide in-depth training for planners and engineers on the topic of roadway access management. Workshop content is derived from the Transportation Research Board Access Management Manual as well as short course training materials used for the Access Management Manual Workshop at the 2005 APA Conference in San Francisco (updated in 2009), the National Highway Institute Short Course on Access Location and Design (updated in 2009), and the FDOT Corridor Access Management Short Course. It is divided into two parts. It will address the principles and practice of access management, access management techniques, access permitting and regulation, and access management in planning and project development.

Access Management Principles

View animated principles

Access management is much more than driveway regulation. It is the systematic control of the location, spacing, design and operation of driveways, median openings, interchanges, and street connections. See this animation to learn more about the 10 principles of access management