A DISCUSSION OF PRE-CAST CONCRETE TRAFFIC DIVIDERS-OHIO
PRE-CAST CONCRETE TRAFFIC DIVIDERS USED IN OHIO WERE DEVELOPED TO SUPPLY: (1) VISIBLE DEFINITION OF MEDIAL AREA, (2) SENSORY WARNING TO VEHICLES ENCROACHING ON MEDIAL AREA, AND (3) DEFLECTION AND REDIRECTION OF IMPINGING VEHICLES. THESE TRAFFIC DIVIDERS PROVIDE PHYSICAL SEPARATION OF OPPOSING TRAFFIC LANES, YET THEIR SPACING PERMITS THE TURNING-CROSS MOVEMENTS REQUIRED FOR ACCESS TO DRIVES, AND THE REGULARITY OF THE SPACING THROUGHOUT THE BLOCK CONTRIBUTES TO THE UNIFORM CONTINUITY OF THE MEDIAL STRIP. SIMPLICITY OF THEIR INSTALLATION ON BOTH EXISTING PAVEMENTS AND AS A PART OF NEW CONSTRUCTION IS AN ADVANTAGE. INSTALLATION CONSISTS OF MERELY FORMING OR CUTTING A 2 INCH DEEP OPENING IN THE PAVEMENT AND SETTING THE UNIT IN PLACE WITH MORTAR OR BITUMINOUS FILLER. THE EFFICIENCY OF TRAFFIC FLOW AND THE RESULTANT SAFETY OF OPERATION ON DIVIDED OR CHANNELIZED SECTIONS JUSTIFIES THE INSTALLATION OF MEDIAL DIVIDERS, EVEN IN SECTIONS OF LIMITED WIDTH.
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Supplemental Notes:
- No 35, pp 90-95, 1 FIG, 10 PHOT 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
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Authors:
- Lehman, Ralph J
- Publication Date: 1951
Media Info
- Media Type: Print
- Pagination: pp 90-95
- Monograph Title: Highways with a narrow median
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Serial:
- Highway Research Board Bulletin
- Issue Number: 35
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Deflection; Highway design; Lateral placement; Medians; Perception; Precast concrete; Traffic flow; Warning signals
- Candidate Terms: Highway economics
- Old TRIS Terms: Visible traffic warning
- Subject Areas: Design; Highways; Safety and Human Factors;
Filing Info
- Accession Number: 00203387
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Apr 28 1994 12:00AM