70 Miles of highway mapping to full engineering design in 99 days

作者：Penny Boviatsou

E.L鲁滨逊Engineering, a civil engineering and planning firm with 40 years of experience in transportation planning, analysis and design, was selected by West Virginia Department of Highways (WVDOH) in the United States to complete a demanding70-mile highway mapping仅项目99天.

该运输项目没有现有的原始地图。为了满足时间表，必须通过移动映射收集数据，包括：

• 绘制一条70英里的两车道高速公路
• Static scanning of 12 bridges
• Curve widening and slide repair
• 创建数字地形模型（DTM）
• Extraction of topographic features, such as edge of pavement, striping, signage and utility poles
• Culvert survey and inspection of more than 500 culverts and pipes
• 设置桥梁的永久控制。

Keeping pace with demanding deadlines

考虑到完整设计可交付成果的短交付时间，E.L.鲁滨逊工程始于移动映射数据采集。面临的挑战是完成移动数据所需的工程可交付成果 - 这是Leica Pegasus：两个移动传感器平台用户网络提供了显着优势. Rice Associates, Inc., a geospatial services firm that provides conventional surveying, in-house photogrammetry, static, mobile, and terrestrial LiDAR scanning, also owns Leica Pegasus:Two mobile sensor platform. The company was able to support E.L. Robinson Engineering with the data extraction capacity to help meet the project timeline.

“对高速公路进行测量需要捕获具有最高精度和标准的大量数据。Leica Pegasus：两个使我们能够每秒收集数百万分。团队mapped 5 miles per day，只花了我们14天for the complete data extraction of the70英里的两车道高速公路,”赖斯协会地区总监Obadyah Foord说。

鉴于两家公司E.L.鲁滨逊工程和大米协会，使用相同的硬件和软件，数据集成和交换是无缝的；带来计划的数据交付，并使工程师无需延迟即可前进到最终设计.

Thriving on a challenging project

该项目总共使用了36个实时运动学（RTK）基站来定位目标和其他地形特征。尽管120 mobile scanner targets被用来控制移动扫描，这些被扫描40 kilometres per hourwith a target每610米. A DTM was created for the highway design, which included:

• The raw point cloud
• 孤立的地面点
• 三角形的表面网。

“The surveyors working from the office were able to create traditional topographical surveys from the point clouds and images,”E.L.调查经理汤姆·雷本（Tom Rayburn）说鲁滨逊工程。“7.8 billion raw data points收集了，我们生产了in45 days整个长度的DTM，路面的边缘，护栏，公用电线杆和标牌。”

“ Leica Pegasus：两个为这个大规模项目提供了快速的数据捕获解决方案，节省了我们的时间并减少了安全风险。”雷本说。“在水稻协会的支持下，我们按时和预算范围内交付了该项目thanks to the speed and accuracy delivered by using the Pegasus:Two.”