in 2016, bringing the fleet of double-deckers to 19 as of 2017. Strathcona County Transit currently has 24 Enviro500s in their fleet. Mexico The Mexico City Metrobús bus rapid transit system started operating a fleet of 90 Alexander Dennis Enviro500s on its new line 7, along the city's boulevard, Paseo de la Reforma, in February 2018. Panama At least one double-decker bus. United States With the exception of coaches, double-decker buses are uncommon in the United States. Many private operators, such as Megabus, run by Coach USA, employ double-decker buses on busier intercity routes. For publicly run transport, articulated buses are generally preferred. Nonetheless, a handful of municipal operators use double-decker buses, primarily on the West Coast. In Davis, California, Unitrans, the student-run bus company of University of California, Davis, operates six double-decker buses imported from London. One of these buses has been converted to run on compressed natural gas (CNG). There was also the prototype GX-1 Scenicruiser of Greyhound Lines, which enters from the first floor: the second floor contains the driver's compartment and more seats. Citizens Area Transit, the transit authority in the Las Vegas, Nevada area, introduced a fleet of double-deckers to serve the Las Vegas Strip route in October 2005. The route is branded as "The Deuce". As of 2009 it serviced eight lines. In Snohomish County, Washington, Community Transit operates 45 Alexander Dennis Enviro500 double-decker buses, which are used on commuter routes between Snohomish County and Seattle. An initial order of 23 buses went into service in 2011, and a second order of 17 went into service in 2015. Sound Transit, another operator in the Seattle area, bought five double-decker buses through a Community Transit order and began operating their own fleet in 2015. In 2016, a joint procurement between three transit agencies in Washington state ordered additional double-decker buses from Alexander Dennis. Community Transit would order 17 buses, with an option for 40, Sound Transit would receive 32 with an option for 43, and Kitsap Transit would buy 11 of their own. As of 1 January 2020, Community Transit owns 52 and Sound Transit owns 37. Community transit purchased 23 in 2010 (10800-10822), 22 in 2015(15800-15821), and 8 in 2019(19850-19857). Sound transit purchased 5 in 2015(91501-91505) and another 32 in 2017(91701-91732). One of the 10800s has been retired, bringing the total for Community Transit from 53 to 52. In San Luis Obispo, California, SLO