This road infrastructure, financed by the Inter-American Development Bank (IDB), is vital for the urban mobilization in Costa Rica. A ring road was erected in the so-called Circunvalación area, which would surround the center of the Costa Rican capital. The project was 410 meters long and included pedestrian bridges with three meters wide. For vehicles, the lanes were 3.30 meters wide at the underpass and 5 meters wide at the roundabout level. The access ramps allow exiting in the roundabout and also have three more exits to other sectors of the city.