Operation and maintenance is important to ensure the value of assets over time. Furthermore, it is important to be able to manage the cost over time, and not least, ensure that construction and technical installations do not adversely affect safety.
Road authorities in South Africa are looking into how to renovate and improve operation and safety in the Huguenot tunnel, a 4 km single tube tunnel located at the national road (N1) near Cape Town.
St. Pauli Elbtunnel opened in 1911 and is a combined pedestrian and vehicle tunnel in Hamburg, Germany. The over 400-meter-long tunnel was a technical sensation in the early 1900. The need for refurbishment has reached this amazing tunnel in Hamburg.
The point cloud created by the laser scan is mainly used to evaluate the conditions of the pavement but can also be used to gather data from the side area and the tunnel walls. The report from such a scanning gives the necessary data for analysis and give the tunnel operator a chance to follow up the development of the road surface, the rock conditions and the construction, from one year to another.
Life cycle and life cycle costs (LCC) aspects becomes more important and especially for complex tunnels with a high operation costs and challenges to keep open 24/7. Its important to consider these aspects in the planning and the design of the tunnel, and make sure this is a part of the evaluation of the different alternatives.