average of 10,091 passengers daily. On 11 March 2021, UP Express launched a pilot project for the new Presto open payment system. In addition to a Presto card, riders have the option to tap on and off using a credit card (Visa, Mastercard or American Express) or a mobile device (mobile phone or watch). Metrolinx plans to allow open payment by debit card later in the second quarter of 2021. If the UPX pilot is successful, Metrolinx plans to make the open payment feature available on GO Transit and eventually expand to other regional public transit service providers in the Greater Toronto Hamilton Area including the Toronto Transit Commission. Public opposition and legal challenges Residents living along the Weston section of the route have objected to alterations to accommodate the GO Georgetown South corridor improvements and the addition of UP Express trains. Concerns include the division of Weston from the closing of level crossings, noise levels, air quality and property values. In April 2009, the Clean Train Coalition (CTC), representing the communities along the rail corridor, formed to put pressure on Metrolinx and the province to immediately prioritize electrification of the densely populated Georgetown South corridor and Union-Pearson Rail Link on opening day. However, both the province and Metrolinx Chairman Rob Prichard have indicated that using diesel trains is the only way to prevent significant delays. "We believe the Greater Toronto Area needs this project as fast as possible, and that means going with the cleanest diesel technology in the world," stated Prichard. In August 2012, the CTC took legal action against Metrolinx by submitting an application for judicial review. The application requested "quashing and setting aside any decision to implement or run Diesel Multiple Units along the Air Rail Link", on the basis that by taking direction from the Ontario government to complete the UP Express in time for the Pan American Games, a proper analysis between operating diesel and electric trains was not completed, running contrary to Metrolinx's legislated mandate. It also asserted that another review of air quality was warranted due to the World Health Organization's (WHO) reclassification of diesel exhaust as a carcinogen. Saba Ahmad, the lawyer representing the CTC, described the application as a test of whether government agencies must obey their own legislation. On 21 November 2012, the Ontario Divisional Court turned down the application, and ordered the CTC to pay $30,000 in court