Case Studies

Our experienced surveyors use robotic Total Station to produce highly accurate 2D and 3D Topographical Surveys.

Photo showcasing Westminster Bridge

Case Study: Mobile Mapping | Westminster Bridge

Sun Hill was tasked to undertake a complete survey of Westminster Bridge using the Leica Pegasus:Two mobile mapping system. This required the combination of vehicle mounted and boat mounted scans.

The aim of the survey was to produce a topographical survey for the top of the bridge, extracted elevations for the bridge faces and delivery of combined point clouds for the entirety of the bridge.

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Case Study: National Highways Area 3 - 119 Sites

Sun Hill was tasked to undertake a mobile mapping survey of 119 sites across southern england using the Leica Pegasus:Two mobile mapping system. This complex project required extensive planning in order to scan all 119 sites in the most efficient way possible.

The aim of the project was to survey the existing sign infrastructure and the area around the signage in order to produce 3D topographical surveys of each site

Using mobile mapping Sun Hill was able to complete the project without any use of traffic management. This in turn saved time and money for the client, while reducing risk for our surveyors as all surveying was undertaken from the safety of our vehicle.

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Photo showcasing Area 3 - 119 Sites
Photo showcasing Cycleways Network

Case Study: Cycleways Network | London

Sun Hill was tasked to complete large scale topographical surveys for multiple projects for the Cycleways Network in London. This required many teams of surveyors working together to complete the project.

The aim of the survey was to produce highly accurate topographical surveys of the existing highway to allow design and constuction of the Cycleways Network.

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Case Study: Hindhead Tunnel | Surrey

Sun Hill was tasked to undertake a thermal analysis survey of Hindhead Tunnel using the Leica Pegasus:Two mobile mapping unit with a thermal camera attachment.

The purpose of this survey was to determine whether water was leaking into the tunnel and to produce 3D drawings of the tunnels highlighting any location of water ingress.

By using our mobile mapping system, this project was able to be completed without any traffic management or closure of the tunnels.

This methodology therefore saved time, reduced the client’s cost, reduced the risk to our surveyors and was completed without any disruption to local traffic.

Photo showcasing Hindhead Tunnel
Photo showcasing Blackfriars Service Tunnel

Case Study: Blackfriars Service Tunnel | London

Sun Hill was tasked to undertake a confined space survey of Blackfriars Service Tunnel using laser scanners.

This required all surveyors to be confined space trained and for extensive risk assessments to be in place to ensure the safety of everyone involved in the survey.

The aim of the surveys was to produce 3D topographical drawings of the service tunnel in relation to the ground above the tunnel.

This methodology provided a fast and safe method for surveying the tunnel while maintaining the high levels of accuracy required for the project.

Case Study: Proposed Rail Bridge | Bedfordshire

Sun Hill was tasked with generating a model of a railway cutting using drones.

This required utilising our team of drone and surveying professionals to take a large number of drone images near to a live railway with a dangerously overgrown and steep embankment.

Working within the CAA and Network Rail legislation and requirements we were able to quickly establish the images required for an accurate point cloud model and topographic drawing.

No rail possessions or hazardous operations on a rail embankment were required, avoiding considerable costs and hazardous work.

Photo showcasing Proposed Rail Bridge
Photo showcasing Monkbretton Bridge

Case Study: Monkbretton Bridge | East Sussex

Sun Hill was tasked to undertake a laser scanning survey of Monkbretton road bridge in East Sussex. This required access to the river bank and to the underside of the bridge.

The aim of the surveys was to laser scan the whole structure and produce a 3D point cloud model of the bridge. A topographical survey of the road and elevations of the bridge were then extracted from the point cloud.

This methodology allowed our surveyors to collect high resolution point clouds from the safety of the river bank for the whole span of the bridge and to reduce the amount of time on site.

Case Study: Sag Curve Analysis | Hertfordshire

Sun Hill was tasked to undertake sag curve surveys of 182 structures across Hertfordshire using the Leica Pegasus:Two mobile mapping unit and terrestrial laser scanners in inaccessible locations.

This required extensive planning in order to survey all 182 structures in the most efficient way possible. The aim of the surveys was to perform sag curve analysis, produce reports, topographical surveys and deliver online web services for each structure.

This methodology saved the client time, money and delivered not only a full sag curve report on each structure, but also allowed the client to view and analyse the structure’s point clouds using Sun Hill’s web services.

Photo showcasing Sag Curve Analysis
Photo showcasing Hampton Court Palace

Case Study: Hampton Court Palace | London

Sun Hill was tasked to undertake setting out at Hampton Court palace for the redesign of the main entrance and the surround area.

The purpose of the setting out was to accurately set out the position of the new entrance, it’s approach and the surrounding pedestrian footways.

As with all sites, once the setting out was complete our engineers performed quality assurance checks to ensure its accuracy.

Case Study: Grounds Maintenance Assets | Berkshire

Sun Hill was tasked to undertake a GIS data capture survey of a number of grounds maintenance sites across West Berkshire. This project used a combined approach of mobile mapping, drone flights and on foot GIS asset collection.

This required extensive planning to determine the correct surveying method for each site. The aim of the surveys was to map the area of grass cutting and the number of features that would require strimming.

This project allowed West Berkshire Council to more efficiently analyse and allocate their ground maintenance budget and to save costs in the process.

Photo showcasing Grounds Maintenance Assets
Photo showcasing Wolvercote

Case Study: Wolvercote | Oxfordshire

Sun Hill was tasked to prepare a visual survey of the flow of traffic entering and leaving highways junctions using a drone for an aerial perspective.

Our team of drone professionals utilised multiple lightweight drones for ease of access to take a series of one hour videos of live traffic conditions.

Repeating the process at different locations and times enabled the client to build up a comprehensive picture of how much traffic is present and also how it flows through the junctions.

Case Study: Arborfield Cross Relief Road | Berkshire

Sun Hill was tasked to provide progress survey data from drones for large construction sites including new build highways and landfill site remediation.

This required utilising our team of drone and survey professionals to capture drone images to generate a point cloud model over several site visits. Each visit can be compared to establish the degree of progress made on site and accurate measurements, including volumes, can be assessed.

Utilising this method, large sites can easily be modelled and assessed from a desktop. Accurate measurements can be made to ensure that subcontract work and billing is accurate. This proves to be a quick and effective way of monitoring progress with greater accuracy than traditional methods.

Photo showcasing Arborfield Cross Relief Road
Photo showcasing River Meon

Case Study: River Meon | Hampshire

Sun Hill was tasked to undertake a drone inspection of an M27 motorway bridge over the River Meon.

This required our team of drone professionals to survey the structure beneath a live motorway without generating risk to the traffic or requiring expensive and complicated traffic management.

Utilising drones negated the requirement for working at height and enabled the work to be completed in a single shift.

Through the use of drones the client saved time, reduced risk and avoided the cost of working at height.

Case Study: Camden | London

Sun Hill was tasked to undertake a PAS128 utility survey of an area of the London Borough of Camden using Ground Penetrating Radar.

The aim of the survey was to accurately identify the location and type all of the sub surface utilities in the area of interest and to produce a CAD drawing detailing each utility.

This required electromagnet and GPR surveying to establish depths and positions on all utilities including, but not limited to electricity, gas, water, drainage and telecommunications.

This methodology ensures that the highway could be redesigned around existing utilities and prevent any damage or disturbance to these underground services.

Photo showcasing Camden

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