The service consists of two lines of 14 stations over 61 km of track, serving 2.8 million passengers a year.

In 2000, work began to place the railway line leading into Cádiz underground to enable double-tracking and create a new linear park in the city.

[2] During this work, Cádiz railway station was temporarily closed with Cortadura serving as a terminus in the meantime.

In 2002 the work was completed, with the reopening of Cádiz station and new underground stations San Severiano, Segunda Aguada and Estadio; spaced apart at a distance resembling a metro.

Of the thirteen stations on the network, the busiest in 2018 was Jerez de la Frontera with 592,000 passengers, followed by Cádiz and San Fernando (350,000 passengers each), El Puerto de Santa María (297,000), Bahía Sur (288,000) and Puerto Real (240,000).