Deflection limits for temporary concrete barriers /
Whenever a traffic control plan is developed that utilizes temporary barriers, it is important to define acceptable barrier deflection criteria. However, the acceptable deflection criteria can be expected to vary, depending on the application. When temporary concrete barriers are used on the edge of...
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| Main Author: | |
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| Corporate Authors: | , |
| Other Authors: | , |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Lincoln, Neb. : [Springfield, Va.] :
Midwest Roadside Safety Facility, University of Nebraska-Lincoln ; [Available from the National Technical Information Service],
[2003]
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| Series: | MwRSF research report ;
no. TRP-03-113-03 (revised) |
| Subjects: |
| Summary: | Whenever a traffic control plan is developed that utilizes temporary barriers, it is important to define acceptable barrier deflection criteria. However, the acceptable deflection criteria can be expected to vary, depending on the application. When temporary concrete barriers are used on the edge of a bridge, the risk of the entire line of barriers falling off of the deck requires that deflection limits be selected to preclude such behavior in almost all impact scenarios. Hence, it is recommended that at the edge of a bridge deck, design deflection limits should be selected to contain more than 95% of all crashes. In all other barrier applications, the consequences of a barrier exceeding the design deflection criteria are not severe. In these situations, a more modest deflection limit criterion based on an 85th percentile impact condition is more appropriate. |
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| Item Description: | At head of title: Midwest State's Regional Pooled Fund Research Program, Fiscal Year 1998-1999 (Year 9), NDOR research project number SPR-3(017). Cover title. "June 18, 2003." |
| Physical Description: | v, 15 pages : illustrations ; 28 cm. Issued to depository libraries on microfiche. |
| Bibliography: | Includes bibliographical references (page 15). |