Transport route engineering

In modern road construction, a variety of construction methods are used, which are tailored to the specific project in terms of material properties, laying procedures and usage requirements. Material composition, processing techniques and technical requirements are key criteria in selecting the appropriate construction method.

Construction methods used in road construction include, amongst others, structures based on Rolled asphalt and mastic asphalt. The choice is made in accordance with the project-specific, technical and traffic-related requirements.

Material management and recycling

In transport route engineering, materials such as asphalt, concrete and soil generated during dismantling and renewal works are processed, reused or disposed of depending on their material properties. Processed materials can be reused in the construction process in accordance with the applicable technical and legal requirements.

According to the Central Association of the German Construction Industry, more than 90 per cent of the excavated road rubble is sent for recycling. Recovery is carried out in accordance with the applicable technical regulations and legal requirements.

Special-purpose areas in transport route engineering place particular demands on planning, construction methods and the choice of materials. These traffic areas are often subject to high surface loads as well as project-specific operational requirements. Different types of use and stresses are taken into account when selecting construction methods and materials.

A variety of laying methods and technical design options are employed in the construction process. Depending on the project requirements, road surfaces and surface structures can be adapted to their intended use. This also includes joint-free laying widths of up to 60 metres using the ‘hot-on-hot’ method.

In landfill construction, the range of services extends from planning and support with the approval process through to construction and reclamation.

These include, amongst others:

• Waterproofing systems
• Drainage systems
• Protective and base layers
• Reclamation measures

The selection of methods and systems takes into account technical, geological, legal and project-specific requirements.

Companies in the energy, telecommunications, utilities as well as district heating sectors place different demands on their infrastructure. PORR’s pipeline construction services encompass the planning, construction and renewal of supply and disposal facilities.

The range of services extends from the execution of individual trades to the implementation of multi-trade projects, including planning, site management, and the supply and installation of materials.

Depending on the project requirements, these services may encompass various project phases – from planning and project preparation through to the execution and completion of the pipeline infrastructure. The choice of methods is made taking into account the technical, legal and project-specific conditions.