Environmental assessment of transport corridors 

Within the framework of TEN-STAC (Scenarios, Traffic Forecasts, and Analyses of Corridors on the Trans-European Transport Network), COWI was asked to assess the likely significant environmental effects arising from different transport corridor scenarios.

Calculations and GIS simulation

Our methodology included calculations based on quantitative data combined with application of geographical information system (GIS) as a tool. By applying GIS layers, we were able to compare the situation before and after project implementation. The comparison focussed on environmental indicators such as:

• Transfer of traffic from existing to proposed infrastructure
• Proximity of proposed infrastructure to designated areas
• Changes in emission levels due to proposed infrastructure

Adjusting to data shortage

As it proved difficult to access all relevant data, we had to continuously adjust our approach throughout the project.

Prioritised list of projects

Our final reporting to the EU included a list of proposed projects presented in order of priority according to their likely environmental impact.