The invention relates to a method for dynamically obtaining relevant traffic information andor for dynamically optimizing a route followed by a first vehicle which belongs to a self-organizing traffic information andor traffic guidance system to which other vehicles belong as well. The resonant grating filter comprises an array of diffraction elements having a periodic spacing that is less than the wavelength of radiation to be filtered and which are formed over a waveguide layer. During the injection, at least the temperature of the atomization liquid which is to be injected upstream of the atomization device or the temperature in the inflow duct downstream of the atomization device is measured. The moveable panels or profile plates are spring-biased to assume a normally closed position.