Anzob Tunnel Road. It is also a transit route between Dushanbe and Uzbekistan's capital Tashkent. Prior to construction of the tunnel, especially during winter, the threat of year-round avalanches led to periodic disruptions of commerce. The tunnel was officially opened in March 2006; it was built by the Iranian Sabir Co. Due to the significance of the tunnel, limited traffic flow was permitted via signing a waiver form noting potential hazards such as flooding and smog from construction equipment operating inside the tunnel prior to the final construction phase which may have included installation of ventilation and drainage infrastructure. As of May
Channel Tunnel 2013 DB was granted access to the tunnel. In June 2014 the plans were shelved, because there are special safety rules that requires custom made trains (DB calls them Class 407). Diesel locomotives for rescue and shunting work are Eurotunnel Class 0001 and Eurotunnel Class 0031. The following chart presents the estimated number of passengers and tonnes of freight, respectively, annually transported through the Channel Tunnel since 1994, in millions: Transport services offered by the tunnel are as follows: Both the freight and passenger traffic forecasts that led to the construction of the tunnel were overestimated; in particular, Eurotunnel's commissioned