HS2 steams ahead with Blom’s high-accuracy aerial surveys

March 22, 2013 -- As detailed planning gets under way for Britain’s new high speed rail network HS2 Ltd turned to Blom to survey the UK’s largest ever infrastructure project.

With experience of working on prestigious projects, including the original Channel Tunnel Rail Link, Blom wasted no time in creating the mapping and visualisation tools HS2 consultants required.

Utilising wide-format aerial cameras and LiDAR (laser scanners) Blom captured high resolution aerial imagery and laser data along the entire 225kms of the first phase of the proposed HS2 route to provide a complete 3D overview. The high-resolution 4cm imagery is then also used for subsequent 1:2500 topographic mapping and provides a permanent time-stamped photographic record along the route.

Simon Kraeter, Commercial Director for Blom UK said “Our survey data is a valuable asset for route design and geotechnical assessment, helping HS2 Ltd to design a better railway that minimises the impact along the route. The models can also be used to create sound propagation simulations, making it possible to devise where sound reduction steps might be necessary.”

Many planning decisions require more than just a vertical view and accurate mapping to be able to put the site in context with the surrounding area. Blom supports this need by capturing oblique aerial photography and video, giving a ‘bird’s eye’ perspective to any location on the route.

“Plans that are sympathetic to the surrounding area are important to everyone but can only be made if a contextual view of the area is available, which is what our oblique imagery and aerial video provide. Hyperspectral imagery, used to show vegetation cover, is also provided, allowing planning decisions to be made with environmental aspects in mind”, added Simon.

About Blom

The Blom Group is the largest provider of geospatial services in Europe for both government agencies and private commercial organizations and companies. Blom owns exclusive spatial databases composed of maps, images and 3D models. Focused on online services, Blom provides data and solutions to its customers in many markets and allows its partners to create high added-value applications based on Blom data models and services. This strategy is backed by Blom’s major technical capacity in aircrafts, cameras, laser scanners and mapping systems. This makes it possible for all projects to be carried out within the company, assuring a high quality product is delivered both on-time and to budget. Blom has around 600 employees and offices in 10 countries and its HQ is located in Oslo, Norway. Blom is listed on the Oslo Stock Exchange (ticker BLO). For more information, visit www.blomasa.com @Blom_Group




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