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
Tajik Soviet Socialist Republic created at the same time within the predominantly Turkic Uzbek SSR as an Autonomous Soviet Socialist Republic (Tajik ASSR) – one rank below a Soviet Socialist Republic in USSR geopolitical hierarchy. The new autonomous republic included what had been eastern Bukhara and had a population of about 740,000, out of a total population of nearly 5 million in the Uzbek Soviet Socialist Republic as a whole. Its capital was established in Dyushambe, which had been a village of 3,000 in 1920. In December 1929, Tajik ASSR was detached from the Uzbek SSR and given full status as a Soviet Socialist