Organization and technical coordination of the international conferences: “The accessible bus and urban mobility: programs, innovation and technology”, for the Spanish Federation of Municipalities and Provinces, FEMP, the Ministry of Labor and Social Affairs, IMSERSO, and the Gijón City Council (Gijón, October 30-31, 2006) and “The accessible bus: something more than a low floor” for FEMP and IMSERSO (Madrid, December 19, 2005)