This study investigated the cooperation between municipalities and other parties in the construction of 60 km/h zones. For various reasons it is advisable that municipalities cooperate with for example road authorities and road users like citizens, companies, emergency services, public transport companies et cetera. In the study we examine the effect of this cooperation for the road's safety. The study poses the following question: To which extent did the organization of the cooperation between the parties involved contribute to the policy's effectiveness in the first phase of Sustainable Safety (more concretely the construction of 60 km/h zones by municipalities) and, based on the findings, what can be said about the second phase of Sustainable Safety in a prescriptive sense? This report presents the data that was collected for the study in the municipality of Roerdalen. The study measured two things. Firstly, the cooperation between the parties involved in the decision-making about the construction of 60 km/h zones was measured. Secondly, the effectiveness of the policy was measured. To measure the cooperation we made an inventory of who maintained contact with each other and the frequency of that contact. This was done in interviews with the municipal employee and a survey among the parties with who contact had taken place or should have taken place. The data was translated into a graphic representation: a diagram of the network. We specifically looked at the cooperation with three groups. In the first place we looked at the cooperation with neighbouring municipalities and other road authorities with whom the municipality shares 60 km/h roads with adjoining boundaries. Secondly, the cooperation was investigated with emergency services (police, fire brigade, ambulance) and public transport companies (for as far as their routes make use of the 60 km/h roads). Finally, the contacts with citizens, companies, and interest groups were studied. To measure the effectiveness of the policy we operationalized the results of the decision-making process as the Sustainable Safety level of the 60km/h roads. All 60 km/h roads and intersections were inspected visually and rated with the Sustainable Safety Indicator. This instrument was used to measure certain road features such as edge markings, centre line markings, and direction separators for road sections, and priority arrangements and physical speed reduction measures for intersections. Based on these measurings the Sustainable Safety rating for the 60 km/h zone was determined. Next the roads were assessed on specific characteristics that are connected with the parties that were involved in the consultations. This approach was used to rate the transitions of municipal roads to neighbouring municipalities and the number of measures that are 'friendly' for emergency services and transport companies. In Roerdalen the cooperation with neighbouring municipalities appears to be good. There have also been consultations with emergency services and public transport companies. Cooperation with citizens, companies and interest groups took place using, among others, feedback groups and information meetings. The result of the decision-making process, the rural 60 km/h roads that have been realized, has been rated with the Sustainable Safety Indicator. This resulted in a Sustainable Safety level of rural 60km/h roads in the municipality of Roerdalen of 92% for road sections, while the intersections scored 72%. Road sections had a less than optimal score on the characteristics edge marking and centre line marking, and scored insufficient on the characteristic 'obstacle-free zone'. The scores for intersections were negatively affected by the presence of priority intersections and the absence of physical speed reduction measures. The two roads that cross the municipal border from a Zone 60 do not show any discontinuities in the road image. Finally, it can be concluded that the 'emergency service and public transport friendliness' of the Zones 60 in Roerdalen was rated as 'good'. Generally it can be concluded that the Zones 60 that were included in the inventory do not yet entirely meet the Sustainable Safety requirements.
Samenvatting