The main objective of this research is to observe the evolution of road accident rates in five municipalities of the State of São Paulo, Brazil (Araraquara, Franca, Matão, Ribeirão Preto and São Carlos), by means of analyzing the relationship between the accident/mortality indexes and the actions performed by each municipality in the following areas: engineering, education and enforcement. As a first step, statistical data on road accidents in the above-referred municipalities during the period between 2005 and 2014 will be collected. As a complement, group interviews will be carried out with the responsible people for each area related to the performed actions in each municipality. These group interviews follow a Focus Group protocol aiming at stimulating discussion among participants in order to get more complete information than in individual interviews. Based on the collected data a questionnaire will be developed in order to be applied to drivers from each one of the targeted cities. It is assumed that the subsequent use of these methodological tools will enable the analysis of the relationship between the statistical indexes and the effects of the adopted actions (engineering, education and enforcement) on road users’ behavior within each targeted municipality from the perspective of different road users’ categories: experienced, novice and professional drivers, pedestrians and motorcycle and bicycle riders.