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ITS Infrastructure Maintenance Management. Final research rept.
| 题名： | ITS Infrastructure Maintenance Management. Final research rept. |
| 作者： | Yao-J.; Teng-H.; Hoel-L. |
| 关键词： | *Maintenance-management; *Traffic-detectors.;Traffic-counters; Vehicle-classification; Traffic-volume; Vehicle-detectors; Simulation-; Literature-reviews; Modeling-; Evaluation-; Calibration-; Loops-; Research-project. |
| 摘要： | Maintaining Inductive Loop Detection (ILD) systems in good conditions allows the systems to perform the functions they are designed for. The objective of this study is to identify the factors that influence the life times of loop detection systems and evaluate several fundamental maintenance policies. To identify the factors that influence the life time of the ILD, survival theory-based deterioration models were developed using the maintenance data collected in a previous study. Special features of the maintenance data (unidentifiable lifetime, censoring data, and panel data) were taken into account in using the models. It was identified that heavy vehicle traffic volume is the major contributor to the diminishing life times of loops in an ILD. No factors can be identified for piezos that are co-installed usually at the same detection stations with vehicle classification capability. |
| 报告类型： | 科技报告 |
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