ABSTRACT: The public works sector undoubtedly contributes to the economic development of the country.This sector is unfortunately damaged and destroyed by local populations for various reasons. This study wasconducted in two regions which are the region of Diana and that of Sofia with the objective of identifying thesources of degradation of road infrastructure. The methods consist of: (i) developing questionnaires onpoliticians concerned by these two regions and the neighboring populations of these infrastructures and (ii)carrying out statistical analyzes of the data using the analysis of variances. The majorities of the peoplesurveyed are the district heads and the regional directors, who represent 35% each. The causes of thedegradation of road infrastructure are significantly higher for non-compliance with load, lack of awareness andnozzle theft. The Measures taken into account for the fight against the degradation of road infrastructure aresignificantly higher for law enforcement, program exit, public awareness, rain barriers and adequate sanitation.These infrastructures constitute sources of income for certain populations and also for the Malagasy State, fromwhich they deserve to be maintained and protected.
Keywords : ethics, politics, issue, infrastructure, Madagascar