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Should 20MPH become the default speed limit for traffic using local streets in all towns and cities?
| 题名： | Should 20MPH become the default speed limit for traffic using local streets in all towns and cities? |
| 正文语种： | 英文 |
| 出版日期： | 2017.04 |
| 出版年： | 2017 |
| 期刊名称： | Transportation Professional |
| 卷： | J69 |
| 期： | No.04 |
| 页码： | 8 |
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