Evaluation of alternative superelevation distribution methods /
adequate side friction demand for the majority of
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1998.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | adequate side friction demand for the majority of amount of supererogation that is used on each characteristics have greatly evolved. This thesis characteristics of these methods. These methodologies demand below the maximals comfortable side friction distribution methods recommended in, 4 Policy on documents an evaluation of the two supererogation driver expectancy, adequate side friction demand driver. drivers with positive side friction. The results of drivers. Additionally, Method 5 provides side friction drivers. The results indicated that Method 2 provides evaluation was on predicting the portion of the driver experiencing negative side friction decreases with experiencing negative side friction increases with fast and slow driver in curve design. Also, Method 5 found that Method 5 fails to provide the majority of Geometric Design of Highways and streets (i.e., horizontal curve. The supererogation distribution increasing 95th percentile speed of the facility. increasing curve radius. Also, the portion of drivers is needed to improve current design standards. limit for a majority of the drivers. However, it was methodologies currently used in the United States do Methods 2 and 5, J). Specifically, the focus of this not provide a clear understanding of the operational population experiencing adequate side friction demand Recommendations include investigating crashes related should be lower than the comfortable limit and higher should be modified to consider the 5th percentile Since then, roadway, pavement, and vehicle Superelevation distribution methods determine the than zero. Good design guidelines should provide this thesis indicate that the portion of drivers to negative side friction demand, and considering both Understanding vehicle performance on horizontal curves ics. were developed on the 1930's, 1940's, and 1950's. when traveling on a horizontal curve. Because of |
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| Item Description: | "Major subject: Civil Engineering". Vita. |
| Physical Description: | viii, 77 leaves : illustrations ; 28 cm. Also available online. |
| Bibliography: | Includes bibliographical references (leaves 64-67). |