Safety and certainty in the design of roads

Abstract In many places we experience a cycling infrastructure that is not sufficiently safe and/or perceived as safe. But the needs of cyclists seem to be well known. The existing regulations offer sufficient wealth knowledge and elements. However, these aspects have weighed against each other additional demands. Decisions on design road spaces are made with local political participation, often by committed laypeople. abundance criteria their weighting, which defined in for engineers planners, overwhelm decision-makers or do address them. Uncertainty decision-making fosters lack safety infrastructure. There need more suitable basis construction addresses responsible decision laypersons involved outside numerous technical weighing supports strongly. following, an approach from planning practice presented based two exemplary situations, requires systematic validation. Here, joined engineering sciences social psychology could provide assistance better decisions sense stronger development towards sustainability quality life. Practical Relevance : redesign traffic facilities bicycle pedestrian urban street living particular challenge. It important expert planners guiding questions decision-makers. These must focus goals achievement people whom been set. This leads goal-focused goal-directed effective change.