The V85 speed is - and has historically always been - a widely used indicator in the world of mobility and road safety, to check whether a speed limit is consistent with the road layout and environment. The V85 speed is considered to be representative of the speed that can be safely maintained on a given road.
It is important to place the V85 indicator in a broader context and to not only use this indicator as an indication of livability. In order to reach policy decisions and interventions, it is important to draw conclusions based on different data (traffic intensities for different modes, average speed, road characteristics and function) and statistics (e.g. accident figures). Neighborhood residents, experts by experience, are often well placed to identify specific issues. Those local insights, from a participatory approach are important to properly interpret the value of V85.