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Grade and Cross Slope Estimation from LIDAR-based Surface Models. Final rept.
| 题名： | Grade and Cross Slope Estimation from LIDAR-based Surface Models. Final rept. |
| 作者： | Souleyrette-R.; Hallmark-S.; Pattnaik-S.; O'Brien-M.; Veneziano-D. |
| 关键词： | *Road-grades; *Slopes-; *LIDAR-; *Optical-radar.;Data-collection; Remote-sensing; Regression-analysis. |
| 摘要： | Many transportation agencies maintain grade as an attribute in roadway inventory databases; however, the information is often in an aggregated format. Cross slope is rarely included in large roadway inventories. Accurate methods are available to collect grade and cross slope; these include global positioning systems (GPS), traditional surveying, and mobile mapping systems. However, most agencies do not have the resources to utilize these methods to collect grade and cross slope on a large scale. This report discusses the use of LIDAR to extract roadway grade and cross slope for large-scale inventories. Current data collection methods and their advantages and disadvantages are discussed. A pilot study to extract grade and cross slope from a LIDAR data set, including methodology, results, and conclusions, is presented. |
| 报告类型： | 科技报告 |
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