North Carolina Department of Transportation, Median Crossover Guidelines, (January 2004)
Documents in the Category: Medians
Lu, J., P. Liu, and F. Pirinccioglu, Determination of the Offset Distance between Driveway Exits and Downstream U-turn Locations for Vehicles Making Right Turns Followed by U-turns, Report Sponsored by the Florida Department of Transportation, Tallahassee, Florida (2005)
Hovey, P., R. Chowdhury, Y. Zhou, and R. Fries, Evaluating the Safety Performance of Adding a Two-way Left-turn Lane to an Undivided Cross-section, Journal of Public Works and Infrastructure, Vol. 2, Issue 4 (2010)
Florida Department of Transportation, Interim Median Handbook, Tallahassee, Florida. (February 8, 2006)
Phillips, S., D. Carter, J. Hummer, R. Foyle. Effects of Increased U-Turns at Intersections on Divided Facilities and Median Divided Versus Five-Lane Undivided Benefits, prepared for North Carolina Department of Transportation, FHWA/NC/2004-07 (2004) [See also Carter, D., J. Hummer, R. Foyle, and S. Phillips. Operational and Safety Effects of U-turns at Signalized Intersections, TRR 1912, Transportation Research Board of the National Academies, Washington D.C., 2005, pp. 11-18.]
Florida Department of Transportation Research Project BDK 84: TWO 977-19: Landscaping of Highway Medians at Intersections, (in progress)
For many years, the Florida Department of Transportation (FDOT) has limited the landscaping
of highway medians at or near intersections. These limitations, detailed in Index 546 of the
Benz, Robert J. Guidelines for the Effective Use of Flexible Pylons for Congestion Mitigation, Access Management, and Safety Improvement, Transportation Research Board of the National Academies, Washington, D.C., Texas Transportation Institute (in progress, end date August 2012)
The objectives of this project are to develop guidelines on/to:
(1) When and where pylons are suitable for implementation,
(2) Which type of pylons (curb mounted or fixed to pavement) is suitable for various applications,
This report presents recommended improvements for the geometric design and safety performance of at-grade intersections on expressways. In general, the operational and safety performance of these multi-lane divided highways nearly matches those of rural interstates. However, because expressways allow for stop-controlled at-grade crossings, increases in both major and minor roadway traffic volume have had a significant impact on intersection safety in recent years. The study investigated alternate safety improvements and indentified their relative effectiveness and focused on reduci
King, M. Pedestrian Safety through a Raised Median and Redesigned Intersections, TRR 1445, TRB, Washington, DC, 2004.
The analysis of this road reconstruction project sought to do two things: to demonstrate innovative qualitative techniques in analyzing traffic calming and pedestrian safety projects, and to quantitatively evaluate the effect of the project on traffic calming and pedestrian safety.
Federal Highway Administration (FHWA), Safety Benefit of Raised Medians and Pedestrian Refuge Areas, FHWA-SA-10-020, (2010) This document is an excellent summary of the safety benefits of medians for pedestrians, pedestrian access to transit stops, pedestrian crossing maneuvers, as well as benefits of medians in general. It includes several references that will be useful as well. It is of significant value to the AMM2 chapters and sections on impacts of access management techniques and pedestrians. Key findings are reproduced below.