The Natonal Traffic Congress 2016 was attended by more than 400 traffic and mobility professionals. They listened and talked about among others urban mobility, road design and big data. TrafficQuest had 2 contributions this year, both papers for discussion (in Dutch). One paper deals with the requirements from road authorities that can be specified for C-ITS applications, which are now in development everywhere. The paper discusses new control possibilities that become available if information is exchanged between traffic signal control systems and road users. In the session the persons present could vote on propositions that were put forward. Based on the outcome the discussion was held.