Afwegingen inzake bestuurlijk en publiek draagvlak bij de besluitvorming op het terrein van verkeersveiligheid : een analyse aan de hand van de maatregelen Bromfiets op de Rijbaan en Voorrang voor Fietsers van Rechts.

The central point of this study was how road safety measure decision-makers take into account the (expected) governmental and public support for the measure involved. This process was studied using two measures introduced in the Netherlands as case studies: `Mopeds on the Carriageway' (MoC), introduced on 1st December 1999; and `Right-of-way for Cyclists coming from the Right' (RCR), introduced on 1st May 2001. Within the theoretical framework of the study, support is seen as the result of cooperation between decision-makers. Intrinsic considerations, progress, openness between participating parties in the process, and the preservation of their vested interests, together determine whether the support for the results increases or decreases. Support for the cooperation process, and specific parts of it, such as the measures to be carried out, are preserved by decisions that: (i) have intrinsic value; (ii) encourage progress; (iii) do not interfere with the openness between parties; and (iv) that do not interfere with the main vested interests of the parties. Based on this theory, the decisions of the policy-makers about the two measures can, for example, be expressed in terms of progress (1), contents (2), and openness between the parties and the preservation of their vested interest (3). The study consisted of an analysis of the facts of the decision-making process (a), an appreciative analysis of the decision-making process in terms of the theory (b), its implementation (c), and an abstraction of both case studies to a more general process dynamics (d).