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Meet the speakers!


Helle Søholt

Founding Partner, CEO

Helle is Founding Partner and CEO of Gehl. She started Gehl with professor Jan Gehl in 2000. Through her leadership, strategic and organizational talent, the office developed a knowledge base and experience portfolio that is respected internationally in the field of urban design and urban development. Over the years of its existence, Gehl has been awarded multiple prizes and recognitions for its contribution to making cities around the world more liveable and sustainable.

Marius Macku

Senior Associate Public Policy & Government Relations EU, Uber

Marius Macku is leading Uber’s mobility policy in Europe, working with among others public authorities, non-profits, academics and mobility providers to help understand how Uber can play a positive role in the future of urban mobility. Before working for Uber Marius was the lead on European and governmental affairs for the highspeed train Thalys. During that time, he was also the President of the European Commission’s Working Group on International Passenger Issues. Prior to that Marius worked in the European institutions. Marius has studied French, German and European law and politics.

Harriët Tiemens

Deputy Mayor, City of Nijmegen

Harriët Tiemens has been a Vice-Mayor at the City of Nijmegen since May 2014. She is responsible for mobility, sustainability (including climate and energy), housing, green areas and water. Tiemens studied Environmental Science at Saxion University of Applied Sciences and Public Administration at Leiden University. She joined the political party GroenLinks as an active member in 1999. In 2002 she was elected onto the municipal council of Rheden, where she served as Vice-Mayor from 2007 to 2014. In 2018, Nijmegen is European Green Capital. In this year, the city of Nijmegen strongly supports the local, national and European push towards more sustainable cities by creating a legacy of sustainable and circular solutions.

Frederic Ximeno I Roca

Commissioner for Ecology, Barcelona City Council

A biologist and technical urban planner, Frederic has worked in the field of environment, urban planning, climate and environmental management for 27 years, mainly as a consultant and for the United Nations Development Programme. He has directed, coordinated and participated in multi-disciplinary teams to develop more than 100 sustainability projects in Europe and Latin America. Frederic was Director-General of Environmental and Sustainability Policies of the Government of Catalonia from 2006 to 2011, where he fostered climate change and environment policies and international environmental cooperation. In 2016, Frederic was appointed as Commissioner for Ecology of Barcelona City Council, where he is promoting holistic and transversal policies on issues including air pollution, climate change, nature and biodiversity and zero waste.

Pascal Smet

Minister of Mobility and Public Works, Brussels Capital Region

Pascal Smet is the Minister of Mobility and Public Works of the Brussels Capital Region. Smet is a qualified lawyer with a background in government, politics and urban development. In 2000, he became the Commission General for Refugees. Following the June 2004 elections, Pascal Smet became Secretary of State for Mobility of the Brussels Capital Region. After four years as the Minister for Education, Youth, Equal Opportunities and Brussels in the Flemish Government, Smet chose again for Brussels’ politics in 2014. As the Minister of Mobility and Public Works of the Brussels Capital Region he is driven by the belief that Brussels needs more space for cyclists, parks, pedestrian zones, and safe play areas. Following the vision of the Danish architect Jan Gehl, he pursues a region moving from a city for cars to a city for people. Pascal Smet wants Brussels to be known as an international city on a human scale.

Philippe Crist

Advisor on Innovation and Foresight, International Transport Forum

Philippe Crist is Advisor on Innovation and Foresight for the International Transport Forum (ITF) at the Organization for Economic Cooperation and Development (OECD). He coordinates the research of the ITF’s Corporate Partnership Board and manages international research projects for the ITF’s 59 member countries. His current work focuses on disruptive urban mobility scenarios and examines how car-based and active mobility, public transport and taxis must adapt to these. He is also leading work on data science and public policy within the ITF, investigating new strategies to leverage knowledge derived from new and rapidly growing data sources to improve transport decision-making. His other work currently looks at managing mobility in rapidly growing urban areas, assessing GHG emission strategies in the transport sector, as well as investigating national transport asset and network management strategies. Philippe is a recognized world expert on cycling safety and policy and won the Danish Cycling Embassy's Leadership Award for Cycling Promotion in 2016. A French-American dual national, he is an ex-competitive cyclist and avid mushroom hunter. He also does much of his best thinking on a bicycle.






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