As a general rule, what is the name given to the section of road that runs through a built-up area?

Correct answer: Town thoroughfare (travesía).

The section of road that crosses a built-up area is called a town thoroughfare (travesía). It is within a built-up area but is still a road, so it is not an urban road. In the image, the road enters Geva, with the built-up area entry sign on the right. We say “as a general rule” because if the town has a bypass you can access, the section crossing it is no longer a town thoroughfare. Conventional road (carretera convencional) and high-capacity divided highway (autovía) refer to types of road based on how they are built.

Ley sobre Tráfico, Circulación de Vehículos a Motor y Seguridad Vial