Mariana Petre specified that the technological tests will start in November and the segment will be opened for traffic as soon as the signaling equipment is installed and the citizen information campaign is completed.
"Works were abandoned in 1989 and submerged under water, so that the tunnels had become the site for speleology research, biologists even found a mollusk species here. The place was also used for fishing and even divers trained in the tunnels," said Metrorex representative Denis Panait.
"Walls were coated with water-resistant composite material plates graffiti can easily be removed from. Each station has lifts and restrooms (…) Finishings are modern and can match any other underground station in Europe," said Dan Doican, project chief for two of the stations.
The Nicolae Grigorescu – City Ring Line segment is 4.8 km long and has four stations: Nicolae Grigorescu – 1 Decembrie – Policolor and the Ring Line.