The Toyo Tunnel Project – the Guillermo Gaviria Echeverri Tunnel Project - covers 18.3km including new roads and is under construction by Consorcio Antioquia al Mar.
The 101km-long motorway - also called the Bucharest Belt Motorway and the A0 Motorway -will be an outer ring highway to the existing inner Bucharest Ring Road around the Romanian capital city.