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Development of a Real-Time Transverse Pavement Profile Measurement System. Final rept.
| 题名： | Development of a Real-Time Transverse Pavement Profile Measurement System. Final rept. |
| 作者： | UNDERWOOD, S. A.; WALKER, R. S. |
| 关键词： | *Pavements-; *Profilometers-; *Highway-maintenance.;Texas-; Data-analysis-software; System-software-interface; System-software-operation; Scanning-laser-tests; Scanning-laser-components; Profilers-; Pavement-surface-textures. |
| 摘要： | The Texas Department of Transportation (TxDOT) has been using a five-sensor rut bar system, using ultrasonic sensor technology, to automatically collect estimates of pavement rutting for PMIS purposes. TxDOT also is presently using a laser-based rut measurement system on one of the TxDOT Profilers. Laser and acoustic base systems are spot-specific, with the sensors located at fixed distances across the eight foot rut bar. These techniques limit the rut measurements to fixed points along an imaginary stringline. This project has investigated the use of scanning laser technology for measuring transverse profile and rut information. A functional system has been developed to scan the full width of the paving lane and to report and store the rut condition of each wheel path. An algorithm has also been developed to measure and report the deepest rut per scan. The system has been tested at several sites and is ready for limited implementation. |
| 报告类型： | 科技报告 |
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