2020 Annual Polis Conference Event Event date Wed, 2 Dec - Thu, 3 Dec 2020 Location Arnhem-Nijmegen City Region Following a record-breaking conference in Brussels, which brought together over 600 participants in November 2019, the 2020 Polis Annual Conference will take place in Arnhem-Nijmegen City Region, Netherlands, on 2-3 December 2020. The Polis Annual Conference provides an Website Polis 2020 annual conference STRIA Roadmaps Transport mode