Autovía Z-40
The Autovía Z-40, also known as the Cuarto cinturón de Zaragoza, is an autovía in Zaragoza, Aragon, Spain, forming a 34 km beltway clockwise around the city.
It consists of three sections:
- The 13 km long northern section shares its route with the Autovía A-2, running from the western outskirts of Zaragoza to the northeastern suburb of Santa Isabel, where it connects with the Autovía A-23 north to Huesca. It also connects with the Autopista AP-68 and the site of Expo 2008.
- The 7 km long eastern section, opened in June 2008, runs from Santa Isabel to the Autovía A-68 near the southeastern suburb of La Cartuja Baja.
- The 14 km long southern section runs from the A-68 back to the A-2, connecting with the A-23 south to Teruel and Valencia.