All ''barrios'' and ''colonias'' in Tegucigalpa can be accessed by automobile, although some neighborhoods in the city suffer from unpaved, narrow, or hilly streets making them difficult to maneuver.  A grid of surface streets and a network of major avenues and boulevards cross through the major areas of the capital.  However, the most transited roads suffer from heavy traffic congestion due to the region's geography and disorganized urbanization.