TRB's newest publications on access management draw on national and state research to respond to the need for a more coordinated approach to transportation and community design that preserves the safe and efficient movement of peoples and goods, provides supporting networks in developed areas, and reinforces desired urban form.
Documents in the Category: Techniques
Transportation professionals today are faced with the challenge to meet the mobility needs of an ever increasing population with limited resources. One potential treatment to mitigate congestion and safety problems at rural expressway intersections, while trying to avoid signalization or grade‐separation, is the J‐Turn intersection treatment, which has been successfully implemented in Michigan, Florida, Maryland, New Jersey, and Louisiana.
Mike on Traffic provides proven practioners tips to help professionals.
These checklists may be useful:
- Traffic Data Collection
- Document Existing Conditions
- Assumptions to Reviewers
- Prepare Traffic Forecasts
- Perform Capacity Analysis
- Determine Necessary Improvements
- Determine Whether to Use Simulation
- Site Review
- Prepare Documentation
- Preparing the Proposal
- Manage the Traffic Study
- Agency Review
TRB's Access Management Application Guidelines (AMAG) focuses on the applications of access management concepts and provides research-based guidelines on access management treatments and procedures for their applications. The AMAG is a how-to tool for continuing the evolution of access management applications in the United States.
Imagine a multilane urban/suburban roadway where traffic is heavy, yet moves well; accommodates drivers, pedestrians, and bicyclists; allows easy entry to and exit from businesses and other destinations; and has fewer crashes and other conflicts. Chances are this road is benefitting from corridor access management, a strategy that seeks an appropriate balance between the safety and mobility of a roadway facility with the access needs of adjacent land uses.
TRH 26 South African Road Classification and Access Management Manual
Technical Recommendations for Highways:
APPLYING DESIGN FLEXIBILITY & REDUCING CONFLICTS
FHWA-HEP-16-055 Aug 2016
This resource provides practical real-world planning and design information to help communities achieve connected pedestrian and bicycle networks. These networks help people of all ages and abilities get where they need to go, including to and from jobs, school, grocery stores, health care, recreation, and transit. Complete multimodal networks enhance access to opportunity for everyone and help reconnect communities.
The Intersections Joint Subcommittee has an online manual that provides state of the art guidance on unsignalized intersections.
Operational Effects of Geometrics and Access Management, 2015
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2486, explores 10 papers related to operational effects of geometrics and access management in the transportation sector, including:
Proceedings of the Second International Conference on Access Management held in Shanghai, China, September 25-27, 2014. Sponsored by the Access Management Committee of the Transportation Research Board; Tongji University; Shanghai Jiaotong University; the Research Institute of the Ministry of Public Security, PRC; the Research Institute of Highway, PRC; the Ministry of Transportation, PRC; and the Construction Institute of ASCE
TRB’s Access Management Manual, second edition, provides guidance on a coordinated approach to transportation and community design that is designed to help enhance mobility, provide greater mode choice, and improve environmental quality. The content is interdisciplinary, with guidance pertinent to various levels of government as well as to pedestrians, bicyclists, and motorized vehicles, including trucks and buses. Access management is addressed comprehensively, as a critical part of network and land use planning. Key updates include
Unlock DDI’s Capacity by Re-Routing Left-Turns at Nearby Intersections
Presentations from ICAM 2014 Sept 25-26, 2014
Younjie Zhang, Vice Chairman and Secretary-General of Shanghai Highway & Transportation Society
Marc Butorac, Chair TRB Committee on Access Management Opening Remarks
Richard Cunard, TRB Representative
Hangie Lin, Vice Dean, School of Transportation Engineering, Tongji University
The purpose of the Alabama Department of Transportation (ALDOT) Access Management Manual is to set out standards for managing access to and from state roads and highways.
Goals of access management include:
- protecting the health, safety and welfare of the public
- maintaining the highway rights-of-way
- preserving the functional level of state roads and highways while meeting the needs of the motoring public
Alabama Department of Transportation Access Design and Management Manual
The Missouri Department of Transportation (MoDOT) is conducting a group of studies to determine how to improve 200 miles of Interstate 70 between St. Louis and Kansas City. Addressing access within the functional boundary of interchanges is a key element of the project. The paper first briefly reviews I-70 decision making studies and MoDOT's access management guidelines. Attention is then focused on access management and the National Environmental Policy Act (NEPA).
The Missouri Department of Transportation has utilized several microsimulation software packages to analyze the impacts of proposed designs, such as interchange footprint and outer road spacing. Traditionally, one of the most difficult aspects of a project has been providing a clear understanding of the final product to the public. This paper discusses the use of visual simulation models to convey access management techniques to the general public.
Sixth National Conference on Access Management, August 29-September 1, 2004, Kansas City, Missouri
This report classifies access management techniques and presents methods for estimating the safety and operational effects of the different techniques. For some techniques, quantitative assessment was not practical and case studies are presented to demonstrate good and poor practice. This report will be very useful to those developing access guidelines and policy and those analyzing specific access situations.
TRB's NCHRP Synthesis 348: Improving the Safety of Older Road Users examines programs and policies in place across the country to improve the safety and mobility of older road users. The report documents a range of strategies and related programs under way in roadway engineering, driver licensing, public information and education, and enforcement and adjudication.
Amekudzi, A., M. Meyer, C. Ross, E. Barrella, Transportation Planning for Sustainability Guidebook, Georgia Institute of Technology, Federal Highway Administration (2011)
Texas Transportation Institute. TCRP Report 19: Guidelines for the Location and Design of Bus Stops. Transportation Research Board, National Research Council, Washington, D.C., (1996)