Update of NCHRP report 230 recommended procedures for the safety performance evaluation of highway appurtenances.
| 企业作者: | |
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| 格式: | 图书 |
| 语言: | English |
| 出版: |
Washington, D.C.
Transportation Research Board
[1990]
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| 丛编: | Transportation Research Circular
Number 374 |
| 主题: |