Men's singles on most tracks have their start house close to the bobsleigh and skeleton start locations while both the men's doubles and women's singles have their start house located further down the track. As of 2009, there are sixteen bobsleigh, luge, and skeleton artificial tracks worldwide with a 17th track near Moscow that will host Junior World Cup events in November 2009. Another track in Russia near Sochi, the Sliding Center Sanki, will be in use for the 2014 Winter Olympics, had construction started in May 2009 following controversies at a previous location over track start heights and it being near World Heritage Site, including near an endangered species of brown bear.