[3] The initial plan called for an 82 km (51 mi) rail network with 60 stations to be constructed in four separate phases.

[4] In June 2010, Malaysia-based Scomi International proposed a US$1.15 billion monorail alternative, but that was not approved.

[3] At a ceremony in May 2014, an agreement was signed by Chief Minister Punjab Shahbaz Sharif, alongside President Mamnoon Hussain and Chinese Communist Party general secretary Xi Jinping, which gave the go-ahead for the construction of the Orange Line.

[9] The rail line runs through the centre of each station, with platforms flanking the track.

[16] Elevated stations feature natural ventilation throughout the platforms, with localised air conditioning in public areas of the ticket-hall level.

[17] Orange Line trains are each composed of five wagons manufactured by China's CRRC Zhuzhou Locomotive,[18] and automated and driverless.

[19] A standard Chinese "Type B" train-set consisting of 5 cars with 4 doors each used,[20] that has a stainless steel body and illuminated by LED lighting.

[32] A depot was constructed at the northeast portion of the line, directly east of the Lahore Ring Road,[33] while a stabling yard was constructed at the line's southern terminus at Ali Town.

[34] The depot is also the site of the Orange Line's central control centre.