Transit in the summer of 2012 (see above). OC Transpo subsequently ordered 75 Go-Anywhere Enviro500s (numbered 8001–8075) for delivery in 2012/13, the first one officially arriving on 23 August 2012. 73 of 75 these buses are in service as of 12 January 2019. Strathcona County Transit Strathcona County Transit ordered 14 transit-type Enviro500s (numbered 8001–8014) for their commuter service between Sherwood Park and Edmonton, Alberta, with the first arriving in late 2013 and subsequent buses arriving by the spring of 2014. They chose double-deckers over articulated transit and motor coaches after a year of testing between September 2010 and October 2011. United States Gray Line New York, owned by Coach USA ordered 20 open-top Enviro500 for its sightseeing operations in New York and put them into service in spring 2005, these were the first open-top Enviro500 built (another 13 would later be ordered). Gray Line also received three single-door Enviro500 in summer 2005 for operation in San Francisco. Citizens Area Transit (now RTC Transit) of Las Vegas had its first 50 Enviro500s enter service by October 2005. The service, marketed as "The Deuce", runs along the Las Vegas Strip. Certain high-traffic routes, such as along Maryland Parkway and Nellis Boulevard, have also used these buses. They offer extra ventilation grilles outside the engine compartment to cope with Southern Nevada's dry desert climate and high summertime temperatures. Las Vegas's Enviro500s have the largest air conditioning system ever created for a transit vehicle, with eight fans fitted on the air conditioning unit. As of October 2006, CAT had firm orders for another 41 of the type worth $29.8 million; these were delivered in late 2007. A further 40 had also been ordered for delivery in 2008; these were long and had a second staircase to speed loading and unloading. All these vehicles were used for regular fixed-route operations, not for sightseeing operations. Les Cars Rouges, a sightseeing company, ordered 16 open-top Enviro500 for sightseeing operations in the US, delivery of these buses started in early 2007. Eight of the Enviro500 are destined for San Francisco, and the rest of them are destined for Washington, D.C. Community Transit signed a five-year contract on 2 July 2009 with Alexander Dennis to deliver up to 120 Enviro500 coaches after the trial of an Enviro500 demonstrator. The company introduced a fleet of 23 Enviro500s in 2011. Unitrans (the student-run transit service of University of California, Davis,