Roadside safety improvement programs on freeways a cost-effectiveness priority approach
| 第一著者: | |
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| 共著者: | , |
| フォーマット: | 図書 |
| 言語: | English |
| 出版事項: |
Washington, D.C.
Transportation Research Board, National Research Council
1974.
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| シリーズ: | Report (National Cooperative Highway Research Program)
148. |
| 主題: |