The MMO started in 2003, with the participation of 6 metropolitan areas: Madrid, Barcelona, Valencia, Alicante, Bizkaia and Seville.
Nowadays the MMO is made up of 22 PTAs in total: Consorcio Regional de Transportes de Madrid, Autoritat del Transport Metropolità de Barcelona, Agència Valenciana de Mobilitat Metropolitana, Entidad Pública del Transporte de la Región de Murcia, Consorcio de Transporte Metropolitano Área de Sevilla, Consorcio de Transportes de Bizkaia, Consorcio de Transportes de Asturias, Consorcio de Transporte Metropolitano Área de Málaga, Consorci de Transports de Mallorca, Autoridad Única del Transporte de Gran Canaria, Consorcio de Transportes del Área de Zaragoza, Autoridad Territorial del Transportes de Gipuzkoa, Consorcio de Transportes de Bahía de Cádiz, Consorcio de Transporte Público del Camp de Tarragona, Consorcio de Transporte Metropolitano Área de Granada, Consorcio de Transporte Metropolitano Área de Almería, Dirección General de Transportes de la Generalitat Valenciana (Alicante), Mancomunidad de la Comarca de Pamplona, the Municipality of Vigo, the Municipality of Corunna, Consorcio de Transporte Público del Área de Lleida and Consorcio de Transporte del Campo de Gibraltar.
Apart from these permanent members, there are also other institutions or agencies collaborating in the MMO, such as the National Rail Board RENFE, the Institute for Energy Diversification and Savings (I.D.A.E.), the Spanish Railway Foundation, the Association of Urban Transport Collectives, the Spanish Federation of Municipalities and Provinces, and the CCOO Trade Union Federation.
TRANSyT (Transport Research Centre of the Polytechnic University of Madrid) assumes the Technical Secretariat of MMO, and writes the annual report. The TRANSyT team in charge of the MMO consists of:
- Andrés Monzón de Cáceres, Professor of Transport and Director of TRANSyT.
- Rocío Cascajo Jiménez, Doctor of Transport and R&D Project Manager in TRANSyT.
- Pablo Jordá Lope, Civil Engineer and Researcher in TRANSyT.
- Begoña Muñoz López, Civil Engineer and Researcher in TRANSyT.



Overview 