Managua old center of the capital that remains rather unchanged since the 1972 earthquake. The monorail would serve important locales, such as the Augusto C. Sandino International Airport and continue service to Ciudad Sandino. The project costs $100 million and has been considered as a possibility for the nation's capital. The Augusto C. Sandino International Airport (formerly Managua International Airport) is the largest and only international airport in Nicaragua. It recently inaugurated its over US$52 million extension and renovation partly financed by Spain. The airport was remodeled by architect Roberto Sansón and has now been converted into one of the region's
Managua North Caribbean Coast Autonomous Region are also connected via road. A third road, currently under construction, will connect Bluefields, South Caribbean Coast Autonomous Region with Managua via Nueva Guinea. Traveling by airplane is more efficient than traveling by these roads due to the poor conditions, especially in the rainy season. Domestic flights are operated by La Costeña from the international airport. There are 36 bus routes in Managua. These are regulated by the city’s regulatory entity for municipal transports (IRTRAMMA) and individually operated by cooperatives and private companies. In addition there are two bus routes that formerly connected to outside