Highways and Railway Surveys

Network Mapping recognize that our capture parameters and processing techniques are particularly suitable for the survey and design of transport corridors. Typically, we capture 6 million points per route mile of survey. Using the standard Network Mapping operating parameters this equates to 11 first points and 11 last points per square meter of corridor survey. This point density ensures that sufficient detail of the route is captured.

Digital photography is captured at the same time as the LiDAR data. This photography has a pixel size of around 5cm using the standard Network Mapping operating parameters. This allows the precise identification and classification of all objects within the corridor. As the photography and LiDAR data is captured simulataneously each LiDAR point can be coloured to reflect the colour of the overlain pixel from the digital photography. This allows us to create 3D photo-realistic representations of the corridor.