The IWG was established at the 12th Meeting of the Advisory Committee in Budapest to look into methods to minimize the impact of roads and other infrastructures (railways, airports) on bats. Its objectives include

• the collection and review the different studies, scientific literature and impact assessment reports available on bat mortality, habitat fragmentation relating to roads, railways, etc;

• the collection and review technical documents on the approach to road building and landscape management able to minimize impacts when constructing new infrastructures;

• the production of general guidelines to raise awareness on the impact of traffic infrastructures on bats and provide some advice for evaluating mortality, fragmentation of habitats and others impacts on bats;

• the preparation of a resolution in order to take into account bats in impact assessments of all traffic infrastructures.