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Development of a Traffic Management Decision Support Tool for Freeway Incident Traffic Management (FITM) Plan Deployment
| 题名： | Development of a Traffic Management Decision Support Tool for Freeway Incident Traffic Management (FITM) Plan Deployment |
| 作者： | Kim, W.; Kim, H.; Won, M.; Chang, G. |
| 关键词： | Traffic management##Incident duration##Decision tool##Non-recurrent congestion## |
| 摘要： | Traffic incidents have long been recognized as the main contributor to congestion in highway networks. Thus, contending with non-recurrent congestion has been a priority task for most highway agencies over the past decades. Under most incident scenarios, if proper diversion plans can be implemented in time, motorists can circumvent the congested segments and best use the available corridor capacity. To tackle this vital operational issue, transportation professionals have proposed a variety of advanced diversion control and route guidance strategies to optimally balance the volumes between the freeway and the arterial. In such a system, reliably estimated incident duration plays a key role in selection of strategies for mitigating incident-related delays and impacts. This research developed a methodology for estimating the duration of a detected incident with association rules (SCAR) and two supplemental models using the CHART-II incident database. To minimize the incident impacts, this study further developed two supplemental models: a deployment strategy for incident response units, and a decision support tool for assessing the need of implementing detouring operations. With these three models, responsible highway agencies can have reliable information to tackle critical issues, such as: “what is the estimated duration to clear the detected incident? How far will the maximum queue reach? Can the projected delay and congestion during incident management warrant the detour operations?” |
| 总页数： | 125 |
| 报告类型： | 科技报告 |
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