The Green Infrastructure Corridors for Intra-African Trade Programme, jointly implemented by the African Union Development Agency (AUDA-NEPAD), the Central Corridor Transit Transport Facilitation Agency (CCTTFA) and Deutsche Gesellschaft für Internationale Zusammenarbeit GmbH (GIZ), is a critical initiative that seeks to improve the infrastructure and transport systems of African countries, and encourage intra-regional trade under the framework of the Programme for Infrastructure Development in Africa (PIDA). Science and Technology and Innovation Hub.Human Capital and Institutions Development.