The roads of Ecuador in recent years have undergone important improvement. The major routes are Pan American (under enhancement from four to six lanes from Rumichaca to Ambato, the conclusion of 4 lanes on the entire stretch of Ambato and Riobamba and running via Riobamba to Loja). In the absence of the section between Loja and the border with Peru, there are the Route Espondilus and/or Ruta del Sol (oriented to travel along the Ecuadorian coastline) and the Amazon backbone (which crosses from north to south along the Ecuadorian Amazon, linking most and more major cities of it).