The relationship between infrastructure and economic development has been the subject of several theoretical and empirical studies. These studies showed in large part a positive impact of infrastructure development on growth and income inequality (Canning and Pedroni, 2004, Calderon and Serven, 2008). This study is an ex-ante evaluation of public policy. Indeed, using micro-simulation techniques, we will try to show the impact of road rehabilitation on local development but also on income inequality between men and women. We will use an indicator of growth in per capita consumption of households and the major hypothesis is that the rehabilitation of a road reduces transportation costs.