Station platforms are built to accommodate five-carriage trains, though four- car trains operate on both lines of the subway system.
In the early-mid 1990s the Tbilisi metro was usually not working due to the lack of electricity.
A population over one million was one of the main criteria for building a metro system in Soviet cities.
As of 2020 Tbilisi city hall plans to purchase 10 4-car trains for Tbilisi Metro, which will meet standards.
The Metro is operated by the Tbilisi Transport Company, which began operation the same year as the Tbilisi Metro, in 1966.
The city grew quite rapidly during the 19th and 20th centuries, and apart from being a cultural and political centre, it was also an important transport hub in and an industrial center as well.
In Aya Kanno's inventive telling, Richard struggles with his love and gende.