Qatar Rail has started work on many of the underground stations of the Doha Metro after the recent completion of the tunnelling of the entire 53.25 km distance, said a report.

The tunnelling works were carried out for the four major underground alignments - Red Line North (11.3 km), Red Line South (12.05 km), Green Line (16.60 km) and Gold Line (13.30 km), reported the Gulf Times.

The total distance of the Doha Metro is a little more than 111 km.  This is apart from the nearly 38 km of mainly underground light transit rail being developed in Lusail, said the report.

The electro-mechanical works have commenced in many of the stations on the four lines.

The first phase of the Doha Metro project is likely to be completed in the next four years. Also by then, Doha Metro's 37 metro stations are expected to be operative, with an average journey time of two minutes between adjacent stations, stated the report.

By 2030, all the three networks - Doha Metro, Lusail Tram and the long-distance rail, which will link Qatar with the GCC Rail network - will be ready, it added.