In this work package, the findings and especially the decision support tool developed in WP3 will be tested in the 8 earlier mentioned countries. The intention is to apply the developed tool and its supporting documentation on real life projects and to determine the usability, output and decision support capability. The participating road authorities will indicate shortcomings and suggest refinements so as to ensure that the tool supports safe road side design and management and improves on current practice. The acceptance of the tool by the road authorities is important and will facilitate wider implementation. The tasks that will be developed in WP4 are:

• Pilot application (testing the concept guidelines and procedures in practice on a selected number of projects and roads in each country)
• Fine tuning and final recommendation/guidelines
• Reporting