The railway transportation, which started in 1866 in our country, has been carried out for many years by vehicles that are all imported and whose maintenance and repairs are carried out in an externally dependent manner. This situation has continuously caused problems and cuts in railway operations and increased costs. The first facilities of TÜVASAŞ were put into operation as “Wagon Repair Workshop” on October 25, 1951 in order to eliminate these problems.

The company, which was converted to Adapazarı Railway Factory (ADF) since 1961, produced the first wagon in 1962.

As a result of the export activities started in 1971, 77 wagons were exported to Pakistan and Bangladesh.

In 1975, in the facilities named “Adapazarı Wagon Industry Organization” (ADVAS), production of RIC type passenger wagons of international standards was started.

Since 1976, the production of electric suburban arrays was started with the license of Alstom company and 75 series (225 units) were produced and delivered to TCDD.

Present status of the winner of the 1986 Turkey Wagon Industry Corporation (TÜVASAŞ), passenger cars, as well as research and development of electric range of manufacturing and engineering services for new projects has given density by making breakthroughs in their fields.

The projects produced in the 1990s were matured, and the Rail Buses, RIC-Z type luxury wagon and TVS 2000 air-conditioned luxury wagon projects, designed by TÜVASAŞ, were completed and their production started in 1994.

In 1995, infrastructure works were accelerated for the production of vehicles used in light rail transportation.

TÜVASAŞ, which started to offer quality services in wagon production and repair with its experienced specialists, engineers and skilled workers, has successfully completed TVS 2000 type luxury bed wagons.

TÜVASAŞ suffered great financial damage in the Marmara Earthquake on August 17, 1999. The workshops and infrastructure of the organization, which has lost its production capability, have become unusable, repair and production has stopped completely.

As of April 2000, debris removal works have started and with the great efforts of TÜVASAŞ staff, re-manufacturing and repair activities have started in a short time.

In 2001, as part of the cooperation with SIEMENS, the installation and commissioning of 38 vehicles of the Light Rail Vehicle fleet of Bursa Metropolitan Municipality were carried out at TÜVASAŞ facilities.

Since 2002, the M-Series (M10 pulman, M70 dining and M80 personnel compartment) modernization wagon projects have been carried out in order to bring the old type wagons to a modern appearance and comfort with modular understanding.

In the period of 2003-2009, high value added, information and technology intensive semi-products and equipment were localized, and a 90% locality rate passenger wagon was started to be produced.

In TÜVASAŞ, in the recent years, the export of wagons abroad has been accelerated, and the generator wagons, which were started to be manufactured in 2005 for Iraqi Railways, were delivered on 28 May 2006. Thus, TÜVASAŞ regained its identity as a company capable of exporting after 35 years.

In 2008, enterprise resource planning (ERP) implementation was initiated, which enables monitoring and control of all business activities in computer environment.

In 2008 and 2009, 84 (28 sets) metro vehicles to be operated between Taksim-Yenikapı and Istanbul Metropolitan Municipality and 75 (25 sets) electric train set (suburban) vehicles of TCDD were manufactured within the framework of joint production with South Korea Hyundai / Rotem company. .

Within the scope of the program of supporting public institutions research projects in 2007, the project titled “Investigation of Passenger Cars under Static and Dynamic Loads” adopted by TÜBİTAK; Stress analysis of passenger cars, high-speed collisions and comfort tests under road conditions made it possible to report. In addition, since 2009, the products have been tested with a static test stand.

In 2010, multi-voltage energy supply unit (UIC voltage converter) to be used in European railways was manufactured and trials were made under road conditions.

In 2010, the construction of the "Climatic Test Tunnel", in which the air conditioning systems of rail vehicles will be tested, was launched with the cooperation of Sakarya University, Uludağ University and TÜVASAŞ, and this application was presented to TÜBİTAK.

Diesel Train Set (DMU) vehicles project, which started production in 2010; It consists of a total of 84 vehicles, 12 of which are 3 and 12 of which are 4. Production of these vehicles until the end of 2013 was completed and delivered to TCDD.

Within the framework of the joint production with Hyundai / Rotem company in 2010, the production of 275 vehicles for the Marmaray Project started in our facilities in accordance with the contract.

TÜVASAŞ has an annual production capacity of 75 wagons and 500 wagons in a total area of ​​439.059 m2, of which 94.752 m2 is closed area, 110.186 m2 is lodging and social facility.

In 2011, in addition to the production of 3 Diesel Train Sets with a total of 9 vehicles, 144 (common with EUROTEM) Marmaray vehicles were produced.

In 2012, 28 Diesel Train Set Vehicles were produced, and 20 K50 Bed Wagon Modernizations, as well as 49 (common with EUROTEM) Marmaray vehicles were produced.

In addition, in 2012, programs were made for the Bulgarian State Railways to produce 30 Bed Wagons, and the production was completed as of the end of 2012.

36 of the additional 124 DMU vehicles started production in 2015 were completed in 2016 and delivered to TCDD. The project was completed by manufacturing 46 units in 2017 and 42 units in 2018.

Currently, a total of 124 vehicles will be produced with 12 sets (3 sets), 12 sets (4 sets), and 84 sets of old vehicles, with a total of 124 vehicles, the DMU fleet is converted into 52 sets (4 units) with 2 engines and 2 engines.

As of 31.12.2018, TÜVASAŞ has made a significant contribution to our national economy, as well as the maintenance, repair, revision and modernization of TCDD with 38 thousand 490 passenger wagons manufacturing, as well as our country.

As of 2019, the National Train (EMU) project with 100 vehicles (20 sets) continues at full speed. Within the scope of the project, visual and preliminary design, Nobo selection, preparation of technical specifications and construction of the body production workshop have been completed so far. The first prototype National Train set is planned to be put on the rails in 2019.