Sound dimension
Audible frequency range, Sound level

Spread of sound
Sound emission level – Traffic
Noise protection regulation
Distance dependency
Effect of obstacles
Noise protection embankment, Wall
Lowering of street level

Airborne and impact sound
Determination of noise protection against airborne noise
Sensitivity to airborne and impact sound
Minimum requirements for internal airborne sound
Determination of noise protection against impact sound
Minimum requirements for impact sound
Nomogram of noise level correction
Volume related correction
Assessed impact sound reduction

Design principles for noise protection
Airborne sound insulation of building elements