An evaluation of pavement markings and raised pavement markers at left exit lane drops /
affected, interactions in the traffic stream are more
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1994.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | affected, interactions in the traffic stream are more already violate driver expectancy, the potential for a an optional treatment. Sign treatments include diagrammatic and out of the exit-only lane, further upstream of the gore are two methods used to communicate an exit lane drop to Awareness of the impending lane drop also encouraged fewer before-and-after data indicated that the lane drop markings can create a hazardous situation when making a sudden lane change out of or into an exit-only lane. Since left exits conjunction with raised pavement markers improve motorist create problems in terms of safety and efficiency. A driver driver expectancy at exit lane drops. drop markings were installed. Driver behavior was measured drop occurs on the left side of the freeway. As might be during daylight and evening hours before and after the lane effectiveness of the markings, driver behavior was examined either enter or leave the exit-only lane to merge quicker. emphasized a changing situation to motorists (i.e. an exit erratic maneuvers. Consistent use of standardized markings expected, a left exit lane drop is a far more serious problem hazardous situation is greatly increased if the exit lane in the after period than in the before period. It is believed indicated that motorists Performed their lane changes, into lane drop), and encouraged those drivers who desired to Most highway engineers agree that freeway exit lane drops motorists. Signs are a required treatment in the Manual on operations at left exit lane drops. To determine the paper was to determine if these lane drop markings in positions of these behaviors, and the time of day. The reduced between the before and after periods. The data also signs, modified diagrammatic signs, the use of the black-on- signs. Markings include alternative gore area treatments and substantially greater. Exit-only signs and pavement markings than either of its individual components; more drivers are that the uniqueness of the lane drop markings further Traffic maneuvers and lane changes were both significantly treatments can provide several benefits such as improved turbulent, and the potential for confusion and accidents is Uniform Traffic Control Devices while pavement markings are using frequency of lane changes and erratic maneuvers, the were an effective treatment at the left exit lane drop. wider, closely-spaced lane lines. The objective of this yellow EXIT ONLY panel on conventional signs, and other |
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| Item Description: | "Major subject: Civil Engineering". Vita. |
| Physical Description: | xi, 87 leaves : illustrations ; 28 cm. Also available online. |
| Bibliography: | Includes bibliographical references. |