Highways in Ecuador
The primary highways of Ecuador are designated with both a name and an alphanumeric designation. The highway designations begin with the letter E followed by a number.
If the highway is a trunk highway (travelling north to south), the number is odd. They are numbered from smallest to largest from the west to the east.
If the highway is a transverse highway (travelling east to west), the number is even. They are numbered from smallest to largest from the north to the south.
North-South
- Insular Route (E5), located at the Galápagos Islands. (Troncal Insular).
- Pacific Route (E15), also known as the Sun Route or Spondylus Route (Vía del Pacífico, Ruta del Sol or Vía del Spóndylus).
- Coast Road (E25) (Troncal de la Costa).
- Highland Road (E35), the Ecuadorian part of the Pan-American Highway (Troncal de la Sierra).
- Amazon Road (E45) (Troncal Amazónica).
East-West
- Frontier Transverse route (E10) (Transversal Fronteriza).
- North Transverse route (E20) (Transversal Norte).
- Central Transverse route (E30) (Transversal Central).
- Southern Transverse route (E40) (Transversal Austral).
- South Transverse route (E50) (Transversal Sur).