Dushanbe of April 2015, had regularly scheduled flights to major cities in Russia, Central Asia, as well as Delhi, Dubai, Frankfurt, Istanbul, Kabul, and Ürümqi amongst others. Tajikistan's principal railways are in the southern region and connect Dushanbe with the industrial areas of the Gissar and Vakhsh valleys and with Uzbekistan, Turkmenistan, Kazakhstan and Russia. The Dushanbe trolleybus system operates public buses in the city. Automobiles are the main form of transportation in the country and many highway and tunnel construction projects are underway or have recently been completed. Major projects include rehabilitation of the Dushanbe – Chanak (Uzbek border), Dushanbe
Capital city of one constituent nation will also be the capital of the state overall, such as London, which is the capital of England and the United Kingdom. Similarly, each of the autonomous communities of Spain and regions of Italy has a capital city, such as Seville or Naples, while Madrid is the capital of the Community of Madrid and the Kingdom of Spain as a whole and Rome is the capital of Italy and the region of Lazio. In the Federal Republic of Germany, each of its constituent states (or "Länder" - plural of "Land") has its own capital city, such