Pavement Profile Scanner – PPS

INFRASTRUCTURE MANAGEMENT with a precise measurement system where High Density Pavement LASER Scanner, Camera System, Corridor LiDAR Scanner, Positioning System and Software packages are combined to detect stress in the pavement.

Integrated Road Information System unites represent two decades of experience in the Infrastructure industry with modern technological developments, to deliver a robust system for seamless data acquisition and tool for interpreting the data to meet the needs and schedules of modern projects. The system consists of various sensors that can be integrated on any mobile mapping vehicle and offers the flexibility to mix and match sensors as per the project needs. The primary sensors are the Pavement Scanners – PPS or PPS+, a corridor profile scanner– CPS and a Camera system. These sensors are controlled and united by the company Mobile Mapping Software Suite to accurately map at high speeds.

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Description

The 3D Pavement Surface LiDAR System i.e. Pavement Scanner (PPS) has been specifically developed for Road Condition Assessment completely independent from limitations regarding the speed of the mobile survey platform while offering utmost measuring accuracy in the sub-mm range.

The system can detect the smallest evenness irregularities of the pavement surface and comes with a software solution to generate full 3D road surface models. The laser scanner measures with hitherto unachieved precision and speed.

The scanner is barely larger than a shoe box, and can flexibly be mounted on a measuring vehicle. The scan provides a three-dimensional model of the road surface.

The laser scanner measures with hitherto unachieved precision and speed making it the industry’s most precise and economic solution for measurement of defects and modelling of the surface to enhance safety and life of the assets.

 

Additional information

Main Features of PPS - Pavement Scanner

• High performance yet compact in design
• 3D road profiling with an accuracy better than 0.3 mm
• Data can be used in any GIS system (ortho-photo) or point cloud software
• Usable with a speed between 0 and 80 km/h
• Unlimited longitudinal profiles at any position as needed for any analysis
• Practical and reliable indicators for road comfort and structural damages are available (acceleration on the driver seat and dynamic axle load)
• Eye safe Laser class 1 system – no shutdown in cities or during low speed
• System can be combined with corridor profile scanners and / or pictures (panorama pictures or normal measurement pictures) as in GINGER’s IRIS
• Open format for 3D – based in automotive circular regular grid (CRG – see opencrg.org) to facilitate microscopic view for detailed description and evaluation of road surfaces.

Why PPS

• 2 Million points per second are measured
• Laser dispersed with a polygonal mirror rotating at 800 Hz. At measurement speed of 80 km/h delivers data with scan line spacing of 27mm.
• With Operating speed between 0 and 80 km/h and no requirement of speed maintenance in any form, mapping at traffic speeds is possible
• Quality and density is independent of drive path of the measurement vehicle
• Accuracy between 0.1 and 0.3 mm
• Mounting at 3.2m height gives a foot print of 4.00m covering the whole lane width
• With its eye safe Class 1 Laser, the PPS is safe to use even in dense urban zones
• Flexibility for the analyst to use LiDAR, GIS and analysis tools of his choice – even in free open source software
• open system – any customized needs of the project can be addressed
• Cooling or heating System available (24/7 operation), usable also under difficult weather conditions

Applications of PPS

• Road Profile Calculations in 3D
• Estimation of longitudinal profiles (calculation of common indices, such as IRI Independent from the driven path – longitudinal profiles where ever you want
• Estimation of transverse profiles (rutting, etc.) – including real high precise rutting depth
• Road Surface Characteristics
• 3D surface characteristics (potholes, etc.) also precise 3D accurate rutting areas geometry
• Accurate, precise full 3D road surface models which also can serve as input for test simulations (such as tyre models, drive comfort, etc.)
• Surface runoff condition, water flow
• Evaluation and comparison of road surface developments / changes
• Possibility to compare road conditions of several years
• Map creation of e.g. a complete surveyed city road network with information about all cracks and ruts

Deliverables PPS

• 3D point cloud of Pavement along the Corridor
• 3D road surface model (compatible with OpenCRG Format)
• Longitudinal and transverse profiles
• Ortho photos of pavement surface in low resolution (depends on the speed)
• Calculate indicators
o IRI
o Rutting depth
o Water depth
o Evaluated acceleration on the drivers
o Dynamic axle load