通过移动映射加速

Author: Staff

3号地区是英格兰公路第二大网络，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。

大型区域最近进行了升级，以设计，更换和安装道路标牌，以在道路上的整个梯度上更清晰可见。需要进行地形调查来捕获设计的功能。大型项目需要对车道和边缘进行详细的地形调查，每个调查测量600 metres long捕获：

• 车道范围
• Road markings
• Crash barriers
• Channels
• Kerbs and kerb weirs
• 沟渠
• 边缘水平
• 铁工程框架
• 签名位置
• Traffic loops
• 高架电缆
• 电盒
• 栏杆
• 栅栏
• 脚步
• Bridge soffit levels
• 码头位置

Sun Hill Surveying and Engineering Ltd., a specialist land surveying and engineering firm, was commissioned by Kier to survey 119 sites on behalf of Highways England Area 3.

From months to day

Sun Hill拥有30多年的专注于整个英国的土木工程部门，为大型项目带来了现代化的方法Leica Pegasus:Two移动映射平台。

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，这将使每个站点大约两天的测量师在现场完成。此外，要调查这许多站点，将需要119个单独的交通管理安装。
With a project of this size, there is a significant health and safety risk associated to all involved, to personnel being both in the carriageway and in the verge during all times of the day and night. A safer and more cost effective method was found in the Pegasus:Two to deliver the project on time and in budget.

在移动映射的情况下，所有站点的访问均未清除，没有公路封闭，就像Pegasus：在收集3D地理空间数据时，两种行为与任何其他公共车辆相同。总共，测量师旅行了more than 6,000 km使用移动映射平台每秒收集数百万点。有no disruption to the networkas traffic management was not required, allowing traffic flow to continue as normal.

调查人员的安全性也大大改善了移动映射，因为在道路上不需要测量人员或交通管理人员，因为所有数据都是从车辆安全性中捕获的。测量师能够从点云创建传统的地形调查。

“移动映射为我们提供了快速的数据捕获解决方案，”Sun Hill移动地图专家Peter Bouchard说。“With the Pegasus:Two, we saved time, reduced safety risk and maximised value by reducing a six-plus-month project to 12 days."

Return on mobile mapping investment

As a result of using the Pegasus:Two, all 119 sites were surveyed inonly 12 days, with no traffic management, allowing processing and extraction to be undertaken from the safety of an office environment. Furthermore, all 119 sites were surveyed and delivered to Kier在最后期限前一周。

Sun Hill was able to deliver this project绝对精度少于20毫米。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。

“At Kier we aim to be at the forefront of technology,"said Chris Fuller, Kier Roads Value Stream manager.“The Pegasus:Two is one of the most accurate mobile mapping units on the market. It has helped deliver significant cost savings as well as meaning we could eliminate traffic management completely from the project and all 119 surveys were delivered before the final deadline."