Question: What Swiss lawyer announced the new Mobility Pricing system?

full_context: Document 1: Simonetta Sommaruga: Simonetta Sommaruga (born 14 May 1960) is a Swiss politician of the Social Democratic Party of Switzerland who is a current member of the Swiss Federal Council, the federal government of Switzerland, and head of the Federal Department of Justice and Police (the Swiss justice minister). She served as Vice President of the Swiss Confederation for the year 2014, and in 2015 succeeded to the role of President.
Document 2: Mobility Pricing: Mobility Pricing is a planned traffic congestion pricing system in Switzerland which was announced by Doris Leuthard, the Swiss transport minister, on 30 June 2016.
Document 3: Swiss Federal Council election, 2010: Two by-elections to the Swiss Federal Council were held in Switzerland on 22 September 2010, after Federal Councillor Moritz Leuenberger (SP) announced he would leave the Federal Council effective 31 December 2010 and Federal Councillor Hans-Rudolf Merz (FDP.The Liberals) on 6 August 2010 announced his intention to retire effective late October 2010. Elected were Simonetta Sommaruga and Johann Schneider-Ammann.
Document 4: New Mobility Agenda: The New Mobility Agenda is an international institution which, although a virtual and open collaborative project today, was originally set up by an international working group meeting at the Abbey de Royaumont near Paris in 1974 with the support of the Parisian OECD to challenge old ideas and practices in the field of urban transport through a long term collaborative program of information exchange, education and peer support. The Agenda today draws together the experience, expertise and support of more than four thousand individuals and groups worldwide in an open collaborative peer network. One of the original proponents of this approach, Professor Mikoto Usui then director of the OECD Development Centre, referred to it in the founding meeting at the "Abbé de Royaumont as an "invisible college". Drawing together the experience and expertise of more than four thousand individuals and groups worldwide, who are networked via a combination of websites, discussion groups and fora, and collaborative projects, the Agenda takes an approach to transportation planning, policy and practice that has gained considerable force over the last two decades—provides a leading-edge alternative to earlier (20th century) methods of looking at and providing mobility for people and goods in cities. The Agenda has received prestigious awards for its contributions, including the Stockholm Environment Challenge Prize (2000) and the World Technology Environment Award (2002).
Document 5: Fast Lane (E-ZPass): Fast Lane was the original branding for the E-ZPass electronic toll collection system used on toll roads in Massachusetts, including the Massachusetts Turnpike, Sumner Tunnel, Ted Williams Tunnel, and Tobin Bridge. It was introduced in 1998, and later folded into the E-ZPass branding in 2012. Fast Lane transponders were fully interoperable with member agencies of the E-ZPass Interagency Group, however Fast Lane transponders (or the "E-ZPass MA" replacement transponders exclusive to Massachusetts) afford users discounted tolls in some junctions that out-of-state users are not offered.
Document 6: Variable pricing: Variable pricing is a pricing strategy for products. Traditional examples include auctions, stock markets, foreign exchange markets, bargaining, electricity, and discounts. More recent examples, driven in part by reduced transaction costs using modern information technology, include yield management and some forms of congestion pricing. Increasingly, sport venues, such as AT&T Park in San Francisco, have employed variable pricing to capture the most revenue possible out of consumers and fans.
Document 7: Ruth Dreifuss: Ruth Dreifuss (born 9 January 1940 in St. Gallen) is a Swiss politician affiliated with the Social Democratic Party. She was a member of the Swiss Federal Council from 1993 to 2002, representing the Canton of Geneva.
Document 8: Alain Berset: Alain Berset (born 9 April 1972) is a Swiss politician of the Social Democratic Party. Since 1 January 2012, he is a member of the Swiss Federal Council, the seven member Swiss government, and head of the Federal Department of Home Affairs (the Swiss interior minister). Before being elected to the Federal Council in December 2011, he was a member of the Swiss Council of States for the Canton of Fribourg since 2003, serving as the chamber's president during the 2008/2009 term.
Document 9: Doris Leuthard: Doris Leuthard (born 10 April 1963) is a Swiss politician and lawyer. Since 1 August 2006, she has been a member of the Swiss Federal Council, and was elected as President of the Swiss Confederation for 2010 and 2017.
Document 10: Micheline Calmy-Rey: Micheline Anne-Marie Calmy-Rey (born 8 July 1945) is a Swiss politician. She was member of the Swiss Federal Council and became Switzerland's foreign minister as head of the Federal Department of Foreign Affairs from 2003 to 2011. She was Vice President of the Confederation in 2006 and 2010 and President in 2007 and 2011. She resigned her office as member of the Federal Council on 31 December 2011.
Document 11: Joseph Deiss: Joseph Deiss (born January 18, 1946) is an economist, Swiss politician and a member of the Christian Democratic People's Party (CVP/PDC). From 1999 to 2006, he was a member of the Swiss Federal Council, heading first the Federal Department of Foreign Affairs (1999–2002) and then the Federal Department of Economic Affairs (2003–2006). He was elected President of the United Nations General Assembly for its 65th session in 2010.
Document 12: List of Presidents of the Swiss Confederation: The List of Presidents of the Swiss Confederation (1848–present) presents the presiding member of the Swiss Federal Council, Switzerland's seven-member executive. Elected by the Federal Assembly for one year, the President of the Confederation chairs the meetings of the Federal Council and undertakes special representational duties. "Primus inter pares", he or she has no powers above the other Councillors and continues to head his or her department (see President of the Swiss Confederation for full details).
Document 13: Eveline Widmer-Schlumpf: Eveline Widmer-Schlumpf (born 16 March 1956) is a Swiss lawyer, politician, and former member of the Swiss Federal Council from 2008 to 2015. She was the head of the Federal Department of Finance (the Swiss finance minister). She served as President of the Swiss Confederation for the year 2012.
Document 14: Dynamic pricing: Dynamic pricing, also referred to as surge pricing, demand pricing, or time-based pricing is a pricing strategy in which businesses set flexible prices for products or service based on current market demands. Businesses are able to change prices based on algorithms that take into account competitor pricing, supply and demand, and other external factors in the market. Dynamic pricing is a common practice in several industries such as hospitality, travel, entertainment, retail, electricity, and public transport. Each industry takes a slightly different approach to repricing based on its needs and the demand for the product.
Document 15: Ueli Maurer: Ulrich "Ueli" Maurer (born 1 December 1950 in Wetzikon) is a member of the Swiss Federal Council. Formerly head of the Swiss Federal Department of Defence, Civil Protection and Sports (the Swiss defence minister), Maurer has been the head of the Federal Department of Finance (the Swiss finance minister) since January 1, 2016.
ground_truth: Doris Leuthard