Speeding up with mobile mapping

作者：工作人员

Area 3 is Highways England’s second largest network carrying around 10 per cent of the country’s overall traffic flows. It includes the M27, M3, M4, A3, A303 and the Hindhead Tunnel and provides the main link routes between several major towns and cities including Oxford, London, Reading and Swindon in the north, and Bournemouth, Southampton and Portsmouth in the south.

The large area recently underwent an upgrade to design, replace and install road signage for clearer visibility across the gradients on the road. A topographical survey was needed to capture features for the design. The large scale project required detailed topographical surveys of the carriageway and verges, each survey measuring长600米capturing:

• 车道范围
• 路标
• 碰撞障碍
• 频道
• 路缘和遏制堰
• Gullies
• Verge levels
• Ironwork frames
• 标志位置
• 交通循环
• Overhead cables
• Electrical boxes
• 轨ings
• 栅栏
• 脚步
• 桥拱形水平
• 码头位置

Sun Hill Surveying and Engineering Ltd.是一家专业的土地测量和工程公司，由基尔（Kier）代表英格兰高速公路3地区委托进行119个地点。

从几个月开始

With more than 30 years’ experience focusing on the civil engineering sector throughout the United Kingdom, Sun Hill brought a modern approach to surveying the large project with itsLeica Pegasus：两个mobile mapping platform.

To survey these sites traditionally is a long and protracted operation using laser scanners, total stations and GPS, to collect thousands of points of data per day. Typically, this would take a surveyor around two days per site to complete in the field. Also, to survey this many sites would have required 119 individual traffic management installations.
有了这样的项目，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。在Pegasus中发现了一种更安全，更具成本效益的方法：两个可以按时和预算运送该项目。

With mobile mapping, access to all sites was left clear with no road closures as the Pegasus:Two acts in the same way as any other public vehicle when collecting the 3D geospatial data. In total, the surveyors travelled超过6,000公里using the mobile mapping platform to collect millions of points per second. There was没有对网络的干扰由于不需要流量管理，因此流量流量正常继续。

Safety to survey personnel was also 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 surveyors were able to create traditional topographical surveys from point clouds.

“移动映射为我们提供了快速的数据捕获解决方案，”said Peter Bouchard, Sun Hill mobile mapping specialist."使用Pegasus：两个，我们节省了时间，减少了安全风险，并通过将六个以上的项目减少到12天，从而最大程度地提高了价值。”

移动映射投资回报

由于使用Pegasus：两个，所有119个地点均已在只有12天，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，对所有119个地点进行了调查并将其交付给Kiera week before the final deadline.

Sun Hill能够交付这个项目with less than 20 mm absolute accuracy. The surveys were then delivered in a staggered program, allowing sites to be prioritised and enabling some sites to be delivered earlier than others.

“在基尔，我们的目标是处于技术的最前沿，”Kier Roads Value Stream经理Chris Fuller说。"PEGASUS：两个是市场上最准确的移动映射单元之一。它有助于节省大量成本，并意味着我们可以从项目中完全消除交通管理，所有119项调查均在最终截止日期之前进行。”