I am a senior consultant in acoustics with about 40 years of experience. My disciplines are acoustics, noise, vibration and air quality. More specific industrial noise, road traffic noise, low noise road surfaces SPB and CPX measurements, noise and vibration from railway, trams and light-rail, squeal noise, rail constructions, measurements, propagation models and dispersion models. Mijn vak disciplines zijn akoestiek, geluid, trillingen en luchtkwaliteit. Meer specifiek betreft het industrielawaai, wegverkeerslawaai, stille wegdekken, SPB en CPX metingen, geluidschermen, geluid en trillingen van treinen, trams en light-rail, booggeluid, spoorconstructies, metingen, overdrachtsmodellen voor geluid en trillingen en luchtverspreidingsmodellen. Voor trillingen betreft dit voelbare trillingen en contactgeluid als gevolg van trillingen (laag frequent geluid) en finite elements.I was for about 15 years general manager at DGMR Consultants for construction, industry, traffic, environment and software. A few years before my formal retirement, I had to end this job as general manager by a general internal agreement to give young people a better chance. Now I am an independent consultant.