Accidents at roundabouts before and after the priority rule
| 主要作者: | |
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| 企业作者: | |
| 格式: | 图书 |
| 语言: | English |
| 出版: |
Crowthorne, Berkshire
Transport and Road Research Laboratory
1973.
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| 丛编: | Transport and Road Research Laboratory
supplementary report 5UC |