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Automated Vertical clearance Measurement During Photolog Operations
| 题名： | Automated Vertical clearance Measurement During Photolog Operations |
| 作者： | Robert G. Lauzon, Ph.D., PE. |
| 关键词： | Vertical Under clearance, Bridges, Oversize/Overweight Vehicles. Vehicle Permits. Photo logging |
| 摘要： | The Connecticut Department of Transportation uses two digital-based photo log vans to collect four different sets of roadway images as well as 40 different types of alphanumeric data, including vertical cross slope and horizontal geometry. A request for overhead clearance information from Department personnel involved with the permitting of oversize/overweight vehicles. and the discovery of a prototype device developed by the FHWA, prompted a proposal to incorporate this type of data collection into the existing photo log activities. This report summarizes the testing of the prototype device, the assembly and use of a new device, and the results of limited field Testing. Data for several bridges and cantilevered overhead sign structures are presented. Observations are made as to the comparison of die data to clearance diagrams created by bridge safety inspectors. Conclusions based on these observations are presented and recommendations are made for further study. |
| 报告类型： | 科技报告 |
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