On the occasion of the World Refugee Week Sofia Development Association took the initiative to launch with the assistance of Sofia Municipality and Sofia Electric Transport Company an awareness campaign on the screens of 24 Sofia tramways, numbers 1 and 7. The two tram lines are among the busiest in the capital city, transporting between 15,000 and 20,000 citizens daily. Between June 17 and June 30, 2019, the screens in the trams are showing videos devoted to integration of migrants, developed by INTEGRA Project, Caritas, UNHCR, the Bulgarian Red Cross, the Bulgarian Council on Refugees and Migrants and Sofia University.