SAFETY CONSIDERATIONS IN MEDIAN DESIGN

THE FREQUENCY, NATURE AND CAUSES OF VEHICLE ENCROACHMENTS ON MEDIANS OF DIVIDED HIGHWAYS WERE INVESTIGATED TO OBTAIN INFORMATION NEEDED IN ESTABLISHING TRAFFIC SAFETY CRITERIA FOR MEDIAN WIDTH AND CROSS SECTION DESIGN. THE EFFECTS OF MEDIAN WIDTH AND CROSS SECTION, TRAFFIC VOLUME, ROADWAY ALIGNMENT, WEATHER, ROADSIDE SIGNS, GRADE SEPARATION STRUCTURES AND OTHER FEATURES OF THE HIGHWAY AND DRIVING ENVIRONMENT WERE CONSIDERED. RELATIONSHIPS BETWEEN TRAFFIC VOLUME AND FREQUENCY AND NATURE OF VEHICLE ENCROACHMENTS ON MEDIANS ARE PRESENTED. THE RECOMMENDATIONS INCLUDE MINIMUM DESIGN REQUIREMENTS FOR SAFE STOPPING OR CONTROL OF VEHICLES IN THE MEDIAN. /AUTHOR/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1967/162/162-001.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Operational Effects of Geometrics and presented at the 45th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Hutchinson, John W
  • Kennedy, Thomas W
• Publication Date: 1967

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 1-29
• Monograph Title: Geometric aspects of highways
• Serial:
  • Highway Research Record
  • Issue Number: 162
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Alignment; Control; Cross sections; Design; Design standards; Grade separations; Highways; Medians; Roadside; Signs; Stopping; Structures; Traffic safety; Traffic volume; Vehicles; Weather; Width
• Uncontrolled Terms: Causes
• Old TRIS Terms: Median encroachments
• Subject Areas: Bridges and other structures; Design; Highways; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00219898
• Record Type: Publication
• Report/Paper Numbers: HS-000 708
• Files: TRIS, TRB
• Created Date: Jun 5 1994 12:00AM