An Evaluation of Ramp Control Signal Head Placement Based on Motorist's Cone of Visions
Roadside mounted ramp control signals have one upper head, and one lower head in California. The upper head is intended for use by the approaching motorists, while the lower one for use by the stopped motorists. Complaints have been received regarding the visibility of these signal heads. The evalua...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2014-09-01
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| Series: | International Journal of Transportation Science and Technology |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2046043016301137 |