Control Network, Trafford Center, Manchester
Introduction
When Brookes Geospatial was contacted to support a new client with a project based at the Trafford Centre in Manchester, we knew it would be a challenge. The project entailed creating a precise 3D model of the iconic dome on the Trafford Centre roof. Given the complexities involved, we were eager to apply our expertise to meet the client's needs.
Understanding the Challenges
From the outset, it was clear that this project posed significant challenges. The requirements demanded extremely tight tolerances, and access to the dome itself was a major hurdle. The intricate architecture and the need for high precision meant that every step had to be meticulously planned and executed.
Project Requirements and Objectives
The primary objective was to create an accurate 3D model of the Trafford Centre dome. To achieve this, our role was crucial in setting up the initial control network, which would be the backbone of the entire project.
Our Approach
Setting Up the Control Network: We began by establishing a robust control network. This network would ensure that the coordinates we provided could be input into the 3D modeling software to reduce errors and enhance the accuracy of the point cloud data. The control network serves as a reference framework, allowing for precise alignment of the 3D model.
Performing a Closed Loop Traverse: To ensure the highest level of precision, we performed a closed loop traverse on the Trafford Centre roof, achieving an end misclosure of 1:80,000. This exceptional level of accuracy was critical for the project's success.
Strategically Placing Targets: We measured 20 targets strategically placed around the dome to retrieve accurate coordinates. These targets were essential for aiding the 3D model and ensuring its accuracy.
Overcoming Access Challenges: Accessing the dome was perhaps the most challenging aspect of the project. Our team had to utilise the goods lift from street level to reach the roof lift lobby. From there, a short steel step ladder to the first roof. We then walked approximately 180 meters across the roof, navigated two staircases, one ladder, and finally, a roof hatch to reach the dome itself. This journey required careful planning and safety measures to ensure successful data collection.
The Importance of Our Work
The coordinates and control network we established are not just initial steps but are integral to the entire project's success. They provide checkpoints throughout the survey, enabling continuous validation of the data collected. This ongoing verification process is essential in detecting and rectifying any discrepancies, ensuring the final 3D model is both accurate and reliable.
Delivering Comprehensive Reports
We provided the client with a full control observation report, as well as a traverse report. These documents detailed our methodologies, measurements, and the precision achieved, offering transparency and confidence in the data used for the 3D model.
Conclusion
At Brookes Geospatial, we thrive on challenges. The Trafford Centre dome project is a testament to our commitment to precision, innovation, and excellence in geospatial services. By overcoming significant obstacles and ensuring the highest level of accuracy, we delivered a solution that will serve the client for years to come.
If you have a challenging project that requires geospatial expertise, contact us to see how we can help turn your vision into reality.