9. The previous month, the 1953 ex-Osaka car returned to service after a 9-month overhaul that included restoring its original identity as Kyoto 869. Meanwhile, additional historic trolleys were being acquired, to replace the Birney car and expand the fleet. Ex-Brussels, Belgium, car 1511, a two-axle car built in 1936, arrived in April 1995, having been stored for several years in Phoenix, where plans to use it in a restaurant did not come to fruition. Toronto car 4608, a 1951 PCC streetcar, arrived in June 1996. 2009 extension At 4:00 p.m. on August 20, 2009 the new 4th Avenue Underpass and 5th Avenue Loop were opened for traffic. The new 5th Avenue Loop runs west along Congress Street to Fifth Avenue, south on Fifth Avenue to Broadway Boulevard and west on Broadway Boulevard to the intersection of Congress Street and Fourth Avenue. New car stops on the Fifth Avenue Loop are at Ninth Street, Fifth Avenue and Congress Street. Impact of modern-streetcar project In May 2006, the Regional Transportation Plan was adopted by a vote of almost 60% in favor. This election also passed a 20-year, 1/2-cent sales tax to finance the transportation improvements. Among the items in the plan was $75 million for the Sun Link modern streetcar system which follows the alignment of the Old Pueblo Line with extensions west through downtown to the Mercado District and north-east through the University of Arizona campus to the Arizona Health Sciences Center. The approved funds were a match to an equal amount of Federal Transit Administration funding. The new system is double-tracked, replacing the original OPT single track. A maintenance facility has been constructed just west of the present OPT car barn and yard on 9th Street west of 4th Avenue. Old Pueblo Trolley suspended operations in October 2011. Construction of the new system began in April 2012, and the line – named Sun Link – opened in July 2014. OPT hopes to be able to resume historic trolley operation on weekends and for special events. Motor bus collection The Motor Bus Division collects, restores and operates historic motor buses that are either representative of transit buses that were operated by carriers or public transit agencies in Arizona or are documented to have been owned and operated by carriers or public transit agencies in Arizona. The collection includes more than 20 coaches to date, most of which are stored at