The Sincan-Kayaş Commuter Line or the Ankara Suburban Railway is the name of the commuter service between Sincan

Sincan

Sincan is a metropolitan district of Ankara Province in the Central Anatolia region of Turkey, a large suburban town 27 km from the city of Ankara...

 and Kayaş in Ankara

Ankara

Ankara is the capital of Turkey and the country's second largest city after Istanbul. The city has a mean elevation of , and as of 2010 the metropolitan area in the entire Ankara Province had a population of 4.4 million....

. The line is owned and operated by the Turkish State Railways

Turkish State Railways

The State Railways of the Turkish Republic or TCDD is the government owned, national railway carrier in the Republic of Turkey, headquartered in Ankara...

.

History

The part from Ankara Station to Sincan was completed in 1892, and a few trains daily ran on it.
It was not until TCDD took over, and put a few suburban trains in service. Service was by a Steam Engine

Steam engine

A steam engine is a heat engine that performs mechanical work using steam as its working fluid.Steam engines are external combustion engines, where the working fluid is separate from the combustion products. Non-combustion heat sources such as solar power, nuclear power or geothermal energy may be...

Locomotive, pulling up to 3 cars. In 1972, the line was electrified, and the E14000 units were put into service.