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| Author | : Charles J. Gatchell |
| Publisher | : |
| Total Pages | : 24 |
| Release | : 1971 |
| Genre | : Pile drivers |
| ISBN | : |
| Author | : Charles J. Gatchell |
| Publisher | : |
| Total Pages | : 28 |
| Release | : 1967 |
| Genre | : Roads |
| ISBN | : |
S2This study was done to determine whether a finished line of guardrail posts could be installed rapidly with the new driver. For a realistic test, conditions typical of an actual guardrail post installation job were required. In addition to speed, it is necessary that guardrail posts be installed to specified tolerances. Therefore, posts were installed to meet the specifications of the State Road Commission of West Virginia for plumbness, alignment, spacing, and freedom from damage. Our main objectives in the study were: To compare the effectiveness of driving on a variety of sites. To compare the rates of installation by machine-driving and by the conventional hand-setting method. To evaluate the effect of post cross-sectional area on driving time.S3.
| Author | : Charles J. Gatchell |
| Publisher | : |
| Total Pages | : 28 |
| Release | : 1974 |
| Genre | : Forests and forestry |
| ISBN | : |
| Author | : United States. Federal Highway Administration |
| Publisher | : |
| Total Pages | : 148 |
| Release | : 1968 |
| Genre | : |
| ISBN | : |
| Author | : Norman J. Deleys |
| Publisher | : |
| Total Pages | : 104 |
| Release | : 1966 |
| Genre | : Roads |
| ISBN | : |
| Author | : United States. Federal Highway Administration |
| Publisher | : |
| Total Pages | : 100 |
| Release | : 1968 |
| Genre | : |
| ISBN | : |
| Author | : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety |
| Publisher | : |
| Total Pages | : 560 |
| Release | : 1989 |
| Genre | : Roads |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 48 |
| Release | : 1985 |
| Genre | : Roads |
| ISBN | : |
| Author | : Jarvis Dale Michie |
| Publisher | : |
| Total Pages | : 63 |
| Release | : 1968 |
| Genre | : Roads |
| ISBN | : |
Guardrail and median barrier design information is presented which will permit the safest highways consistent with current state-of-the-art barrier technology. Since guardrail and median barrier installations are hazardous in themselves, emphasis is placed on reducing the number of installations to those which can be clearly justified. The design procedure presented involves two steps: (1) determination of points and length of need for the installation, and (2) selection and layout of appropriate guardrail or median barrier system.
| Author | : National Research Council (U.S.). Highway Research Board |
| Publisher | : |
| Total Pages | : 428 |
| Release | : 1964 |
| Genre | : Highway engineering |
| ISBN | : |
