The implementation of the Delft bicycle network plan, consisting of a variety of measures, has been evaluated. This evaluation was carried out as a before-and-after study into the effects of the plan on bicycle use, traffic safety and perceived cycling conditions. Separate investigations were made into general mobility, modal choice, origin and destination pattern, route choice and traffic flows, In addition to cyclists' travel behavior, other modes of travel, in particular car drivers, were analyzed. This integral summary report summarizes the findings of the various investigations and gives consistent estimates of the plan's effects. It integrates the findings using a common theoretical framework that enables an explanation of the behavioral responses.
It was found that the bicycle network plan resulted in a significant increase in bicycle use and in improved cycling conditions. Car use did not increase in the study period.