Istanbul's already impressive metropolitan transit system is due for an upgrade as the Metropolitan Municipality Rail System's Directorate opens its doors to bidders for a new set of trains to accompany its newly constructed line. The new 17 station subway line will stretch from Üsküdar to Marmary, serving as the Asian portion of the city's second major railway.

ISTANBUL Metropolitan Municipality's Rail Systems Directorate invites bids from individual companies by July 15 for a fleet of 21 six-car trains for operation on the new Line M6 which is being built as the second metro line on the Asian side of the city.

The driverless trains, which must be in service by 2015, will have wide inter-car gangways. There must be a minimum of 15% Turkish content apart from the first two trains.

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