The regional government of the Flemish region is responsible for the environmental legislation within Belgium and reports the impact of environmental burdens since 2003 to support environmental policy. The Ghent university is providing and structuring the indicators for the noise discipline since that time. The underlying data and the quality of the models has evolved through time but in general, the time series of the indicators are very stable. In an-ongoing project, the sensitivity and spatial resolution of the indicators is evaluated and improvements are proposed to achieve even better policy support. In this manuscript, the results of this evaluation will be presented. The focus is on defining indicators with a region-wide coverage and sensitive to the potential effects of the legislation affecting all types of noise exposure. The goals of the project are manifold: (1) SWOT-analysis identifies strengths, weaknesses, opportunities and threats; (2) potential developments in available data are identified to improve sensitivity; (3) technological options are identified to move from simulated to measured indicators; (4) modifications of the existing indicators are proposed when relevant. The technological developments on low-cost noise monitoring have a huge potential. The large-scale implementation of measurement based indicators for regional and local policy support is under evaluation. Actual implementation will require the alignment of priorities and budgets across different governmental departments.