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.
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Documents in the Category: Performance Measurement
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.
Introduction of Level of Service and Safety Improvements on the R44 incorporating Access Management Principles - Bertie Phillips, Kantey & Templer Consulting
The R44 is a major four lane divided arterial route linking Somerset West on the outskirts of Cape Town to the nearby town of Stellenbosch. Daily traffic volumes have increased exponentially from some 5,000 vehicles per day in 1975 to 30,000 vehicles per day in 2015.
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:
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
Classification and Design of Highway At-Grade Intersections
The purpose of this study was to determine whether acquiring additional limited access right-of-way (ROW) at the time an interchange is built and before the surrounding area is subdivided and developed, is in fact cost effective in light of potential costs and benefits. The study methodology included the following: (1) traffic operations analysis of the interchange with varying configurations of signalized access spacing, (2) safety analysis of interchanges with varied access spacing in Florida, and (3) a cost/benefit analysis of acquiring varying amounts of limited access ROW.
This paper discusses how access management techniques have impacted Value Engineering (VE) studies. The following three topics are described and discussed using results from actual VE studies: Diamond interchange footprint; Urban widening (retrofit with median strip); and Left turn lanes on a rural arterial.
Access Management Performance Measures for Virginia: A Practical Approach for Public Accountability
In order to develop performance measures to communicate the effect of Virginias access management program, five tasks were performed:
Macdonald, E., R. Sanders, P. Supanawich. The Effects of Transportation Corridors Roadside Design Features on User Behavior and Safety, and Their Contributions to Health, Environmental Quality, and Community Economic Vitality: a Literature Review, UCTC Research Paper No. 878, University of California Transportation Center, (2008)
Bochner, B. and B. Storey. Designing Walkable Urban Thoroughfares: A Context Sensitive Approach Phase III Outreach Materials (Task 5) Performance Measures, Technical Memorandum (July 2011) unpublished. http://www.ite.org/css/Task5Memorandum.pdf
This report includes performance measures that may be useful to access management. A few examples include:
Kimley-Horn and Associates, Inc., Access Management Plan, Lower Rio Grande Development Council/Hidalgo MPO, Weslaco, Texas (2005)
Souleyrette, Reginald R; Plazak, P E; Plazak, David J. Use of Geospatial Information and Remote Sensing Data to Support Improved Roadway Access Management. Urban Transport XII. Urban Transport and the Environment in the 21st Century. (2006, pp 477-489)
Schultz, G. G., K. T. Braley, and T. Boschert. Correlating Access Management to Crash Rate, Severity, and Collision Type. Presented at 87th Annual Meeting of the Transportation Research Board, Washington, DC, (2008)
Schultz, G. G., and K. T. Braley. A Prioritization Process for Access Management Implementation in Utah. Report UT-07.05, Utah Department of Transportation Research and Development Division, Salt Lake City, UT, (2007)
Schultz, G., K. Bradley, and T. Boschert. Prioritizing Access Management Implementation, Transportation Research Record: Journal of the Transportation Research Board, No. 2092, Transportation Research Board of the National Academies, Washington, D.C., (2009, pp. 57-65)
Miller, J., Potential Performance Measures to Assess Transportation and Land Use Coordination, Transportation Research Board 87th Annual Meeting (2008)
Kirk, A., J. Pigman, B. House, Quantification of the Benefits of Access Management for Kentucky, University of Kentucky, Lexington, Kentucky Transportation Cabinet (2006)