of the Meltdown, when the same trip on Muni Metro could take three times as long. Mayor Brown re-enacted the race as the pedestrian on September 3; this time, Muni Metro service had improved and train passengers completed the trip in just seven minutes. At the request of the San Francisco Examiner, a member of the executive committee for Rescue Muni tracked the length of each ride on her eight-stop daily commute to the Financial District from the Sunset that week. Four of the ten trips took longer than 40 minutes, and the best time was 15 minutes. By the third week of operation under automatic train control, the Muni Meltdown had passed and service was uneventful, albeit with fewer LRVs than normal and with drivers onboard each train. Muni officials apologized for the rough transition and promised to continue to improve service; privately they called the Meltdown "the biggest fiasco in the railway's history." In an effort to improve service, Muni began to replace its troublesome fleet of Boeing-Vertol light rail vehicles with newer Italian Breda light rail vehicles in late 1996. The two-decade-old fleet of Flyer trolleybuses were replaced with Electric Transit, Inc. (ETI) trolleybuses in the early 2000s. Likewise, the diesel bus fleet saw an infusion of 45 new NABI buses from AC Transit in 1999. 2000s Construction on a sixth light rail line from Caltrain Depot in Mission Bay to Visitacion Valley and Bayview/Hunters Point was completed in December 2006. The new line, named the T Third Street, consisted of 19 new high-platform stations at street-level. On October 8, 2007, SFMTA's cable car signs were awarded the AdWheel Award as the best in print promotion by the American Public Transportation Association. Nathaniel Ford, executive director of Muni, said that the "marketing group has done an outstanding job making the key boarding areas more attractive and inviting for residents and our guests." On November 15, 2007, city officials announced that they were looking into the possibility of adding double-decker buses to the Muni fleet, which would be operating mostly on the 38 Geary and the 14 Mission routes. The test period started on December 12, 2007, and ended on January 8, 2008. On December 1, 2007, Mayor Gavin Newsom announced that the entire city fleet, including all of Muni buses, are henceforth powered with biodiesel, a combination of 80% petroleum diesel fuel and 20% biofuel, to reduce