Capturing Fast and Accurate Data for Highways England Area

Sun Hill Surveying and Engineering Ltd is a specialist Land Surveying and Engineering company with over 30 years’ experience, focusing on the civil engineering sector throughout the UK. Delivering only the highest quality services through a portfolio of professional expertise, Sun Hill brings a modern approach to surveying with a unique combination of traditional and state-of-the-art technology.

Working closely with Leica Geosystems for over 20 years and investing heavily in Leica Geosystems products and solutions throughout this period; Sun Hill made a significant capital investment in the Leica Pegasus:Two in August 2015. Adopting this new mobile mapping technology from Leica Geosystems was a significant step for a growing company to invest in. Given their client base and smart ways of working, as well as the ever increasing pressures on the maintenance of the highways infrastructure, it made the investment in the Leica Pegasus:Two a necessity.

英格兰高速公路3项目
在这项投资移动地图技术之后不久，基尔（Kier）与Sun Hill接近并委托，代表英格兰高速公路3号地区进行调查119个地点3。区域3是英格兰高速公路的第二大网络，载有该国总体交通流量的10％。它包括M27，M3，M4，A3，A303和Hindhead隧道，并提供几个主要城镇和城市之间的主要链接路线，包括牛津，伦敦，雷丁和南北以及南部的伯恩茅斯，南安普敦和南部的朴茨茅斯。

挑战
The large scale project required detailed topographical surveys of the carriageway and verges, each survey measuring 600m long for the design and future replacement and installation of road signage for clearer visibility across the gradients on the road. The topographical survey features for the design included the surveying of the carriageway extents, road markings, crash barriers, channels, top of kerbs, gullies, kerb weirs, verge levels, ironwork frames, sign locations, traffic loops, overhead cables, electrical boxes, railings, fences, steps, bridge soffit levels and pier positions.

传统上，使用激光扫描仪，总站和GPS进行调查，是每天收集数千个数据点的漫长而持久的操作。bob apple通常，这将需要大约2天的测量师在现场完成。还需要调查许多网站，需要119个单独的交通管理安装。有了这个规模的项目，与所有相关人员相关的健康和安全风险都有很大的健康和安全风险，在白天和黑夜的所有时间内都在车道和边缘。需要一种更安全，更具成本效益的方法来按时和预算交付该项目。

数据捕获通过移动映射
徕卡珀加索斯:两个手机域名le mapping process have revolutionised the world of surveying. Using the mobile mapping process and Leica Geosystems’ technology provided huge benefits to the Area 3 Highways England project. Access to all sites was left clear with no road closures as the Leica Pegasus:Two acts in the same way as any other public vehicle when collecting the 3D geospatial data. In total, the surveyors travelled more than 13,000km using the Leica Pegasus:Two to collect millions of points per second. There was no disruption to the network as traffic management was not required, allowing traffic flow to continue as normal. Safety to survey personnel was considerably improved using mobile mapping as no surveyors or traffic management crews were needed in the road as all data was captured from the safety of the vehicle. The virtual surveyors were able to create traditional topographical surveys from point clouds. Mobile mapping provided a rapid data capture solution for Kier, saving them time, reducing safety risk and maximising value by reducing a 200 field day project to 12 days with mobile mapping.

Results and Benefits
由于使用了Leica Pegasus：两个，仅在12天内对所有119个地点进行了调查，没有交通管理，可以从办公室环境的安全中进行处理和提取。此外，由于使用Leica Pegasus的准确性速度：两个：Two，所有119个地点都经过了最终截止日期前一周的调查并将其交付给KIER。总项目花了118天的时间才能完成，包括现场操作。Sun Hill能够以不到20mm的绝对精度传递该项目。然后，调查在交错的程序中进行，使站点可以优先考虑，并使某些站点比其他站点更早地交付。