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Investigation on the Environmental Benefits of a Variable Speed Control Strategy.
| 题名： | Investigation on the Environmental Benefits of a Variable Speed Control Strategy. |
| 作者： | WALTON, C. M.; WANG, Z. |
| 关键词： | environmental；strategy；invest；control；vari；aria；speed；stig；fits；able |
| 摘要： | The safety benefits of variable speed limits (VSL) have already been widely recognized. However, the environmental benefits of variable speed limits have been largely ignored. This paper presents a study of the potential benefits of variable speed limits in reducing mobile emissions. A Monte Carlo simulation approach is developed to evaluate the effectiveness of the idea of using variable speed limits to manage and reduce mobile emissions. A case study is performed on the IH-35 corridor in Austin, Texas. The numerical results indicate that on 'Ozone Action' days, by managing the freeway/expressway traffic speeds at appropriate levels through VSL, the major pollutants, such as Nitrogen Oxides (NOx) emissions, could be significantly reduced. Considering the large contribution from freeway/expressway traffic to mobile emissions, a variable speed limit strategy could be an effective measure to balance travelers need for mobility with conservation of the environment. |
| 报告类型： | 科技报告 |
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