K K Geo System Private Limited

General

The system is developed in close cooperation with the Norwegian Public Roads Administration (NPRA). ViaPPS meets the requirements for the measurement of road surfaces set by the NPRA and the requirements stated in the following standards:

• ASTM E-1448-92
• European standard - Road and Airfield surface characteristics EN 13036-8

 

The NPRA has 15 ViaPPS systems in use. Private companies are also using ViaPPS for documentation of the condition of road and airport pavements. The new ViaPPS uses LiDAR technology, a 360° laser scanner, to create a high – resolution 3D point cloud. The LiDAR technology allows the ViaPPS to measure far more parameters than existing technologies.

Principle of the system.

The point cloud created by the laser scan is used to evaluate the conditions of the pavement and the side area, the automatic report is instantly available. The whole system is mounted on a vehicle, such as a van, car, truck or trailer.

ViaPPS surveys over 100 000 km every year, and has a proven reliability since 2006. The ViaPPS offers: Automatic inspection of roads, 3D mapping, Automatic reports and instantly available data. All in one system. A high – resolution camera, a thorough point cloud and accurate positioning of data provide reliable results. Our customers believe ViaPPS to be very cost efficient for maintaining the road networks. The system measures surface parameters equal to what are normally measured by three vehicles.

Point Cloud of a tunnel

ViaPPS can be used for a number of purposes. Pavement profiling and management is one of them, when a new pavement is laid, the ViaPPS is used to examine the surface in order to verify that it meets the required standard. The result from the measurement is used as a certificate of the condition of the new road. If ViaPPS is used at regular intervals, the measurement results can be used for keeping track of the wear of the road. The measurements provided by ViaPPS are often used as a documentation of the condition of the road. The data is typically used to plan maintenance of the road, optimizing the overall cost. The data explaining the condition of the road could also be used to determine how much asphalt is to be removed or added during a resurfacing of the road.

Mobile mapping system

ViaPPS can also be used for:

• Accident investigation
• Examining Tunnel and Side area conditions
• 3D modeling of road network with LAS format to be integrated in BIM

 

Technology

The laser scanner used by ViaTech, the Z+F PROFILER® 9012, is capable of capturing more than 1 million points per second. The laser scanner is of laser class 1, making it eye safe. It is water and dust resistant as well. The high resolution of the point cloud helps create a clear image of the pavement and its condition.

The Z+F PROFILER 9012

The point cloud can be used together with the ViaPPS data analysis software (ViaPPS Analyzer) to detect the following parameters of the road automatically:

• Bad joints of the asphalt
• Quality of the road markings
• Curve radius
• IRI and MPD
• Homogeneity
• Longitudinal and transversal profile
• Rut depth, rut area and rut volume
• Cross fall and Cross fall vs. Requirement
• Local longitudinal deflection and bumps
• Width of the lane (input to calculations also)
• Crack parameters (Crack level, Crack area level, position)
• Vertical height to bridges/crossings or in tunnels
• Maximum local cross fall in lane that can be of danger for driver
• Raveling