GRB-66-12
Problems with noise emissions of L-category vehicles
Problems with noise emissions of L-category vehicles
Discussion of motorcycle and related vehicle noise issues, especially related to aftermarket modification (non-original replacement exhaust silencer systems (NORESS)).
GRB-66-15
Study on Euro 5 sound level limits of L-category vehicles
Study on Euro 5 sound level limits of L-category vehicles
Presentation on the status of the European Commission-sponsored study to investigate the potential of and develop a proposal for new sound limits of L-category vehicles under Euro 5.
GRB-66-17
Possibility of “Pass-by-Light” Noise-measurement of vehicles of Category L
Possibility of “Pass-by-Light” Noise-measurement of vehicles of Category L
German authorities have carried out a study to assess the possibility for measuring UN R41.04-approved L category vehicles using typical “roadside check” equipment. The study found that such equipment provides a “lite” version of the UN 41.04 procedures that is useful in evaluating real-world performance. Germany intends to pursue a national “pass-by lite” test directive for UN R41-approved motorbikes and for non-original replacement exhaust silencer systems (NORESS) roadside and periodic technical inspections.
GRB-66-18
Environmental Noise in the European Union
Environmental Noise in the European Union
Update on the EU Environmental Noise Directive 2002/49/EC intended to avoid, prevent or reduce the effects of exposure to environmental noise harmful for health.