replace tracks. With the new street design, two auto lanes south of the streetcar tracks were eliminated from Spadina Avenue to York Street in order to extend Harbourfront parkland to the edge of the streetcar right-of-way. Thus, streetcars now effectively run on a roadside right-of-way instead of a mid-street median. A bicycle path and rows of trees are located on the immediate south side of the right-of-way. By August 2016, after the reconstruction of Queens Quay West, the TTC reported that streetcars were taking 40 minutes to make a round trip instead of an expected 34 minutes. The new side-of-road track design results in streetcars encountering more traffic lights, pedestrians and cyclists, the latter two requiring streetcar to operate slowly to avoid collisions. TTC service planner Scott Haskill suggested that "public realm and urban design" drove the Queens Quay redevelopment at the expense of transit planning. However, accidents along Queens Quay are no more frequent than along other streets. Transit advocate Steve Munro analyzed the route's performance for May 2016 and concluded that the extra running time was consumed from Queens Quay Loop to the intersection of Bathurst and Fleet streets, and that the running time east of Spadina Avenue was the same as before the reconstruction because of fixes to traffic signal problems. Between 2014 and January 2020, there were 27 instances of private unauthorized automobiles driving down the ramp of the streetcar tunnel entrance just east of York Street and getting trapped in the tunnel. In a January 2020 incident, a motorist bypassed bollards, flashing lights and gates to become stuck at Union Station. These tunnel intrusions have negatively affected both 509 Harbourfront and 510 Spadina service. On 12 September 2017, 509 Harbourfront became the first streetcar route in Toronto to operate Flexity streetcars with electrical pickup by pantograph instead of trolley pole. Pending the conversion of the overhead on other streetcar lines, runs to and from the carhouse continue to use trolley poles, with the changeover taking place at Exhibition Loop. Vehicles used The 604 Harbourfront route began operating in 1990 using rebuilt PCC streetcars belonging to the TTC's A-15 PCC classification. (The A-15 class PCCs were rebuilt from A-9 class cars purchased new in 1950–1951.) The PCC cars were replaced by CLRV streetcars in 1994 due to complaints of squealing from the PCC wheels. On 29 March 2015, Flexity Outlook low-floor vehicles were introduced on the