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On-Time Reliability Impacts of Advanced Traveler Information Services (ATIS): Washington, DC Case Study. Final Report
| 题名： | On-Time Reliability Impacts of Advanced Traveler Information Services (ATIS): Washington, DC Case Study. Final Report |
| 作者： | Wunderlich, K. E.; Hardy, M. H.; Larkein, J. J.; Shah, V. P. |
| 关键词： | Transportation systems; Benefits; Modeling; Internet; Simulation; Travel time; On-time reliability; Variability |
| 摘要： | Internet-based Advanced Traveler Information Services (ATIS) provide the urban traveler with estimated travel times based on current roadway congestion. Survey research indicates that the vast majority of current ATIS users are satisfied consumers who feel they save time by utilizing these services on a regular basis. However, in numerous field experiments and simulation studies, ATIS users experience little or no actual reduction in their in-vehicle travel time. This report describes an innovative analytical method (the simulated yoked study), which applies dynamic programming techniques to archives of observed roadway congestion to quantify the impact of regular ATIS utilization by urban commuters. A simulated yoked study comprises efficient modeling of paired driving trials between travelers with or without ATIS, conducted across regional urban networks and over months or years of archived data. In-vehicle travel time, as well as on-time reliability measures, are tracked for each simulated yoked trial participant. |
| 总页数： | 69p |
| 报告类型： | 科技报告 |
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