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Constant increase of traffic volumes exacerbates transportation problems and causes deterioration of safety and life conditions of village inhabitants in the vicinity of throughways. To reduce the adverse effect of road traffic, introduction of traffic calming devices in entry zones has been used for years. Their success in speed reduction and improvement of acoustic climate were dependent on the type of devices, their location and how frequently they were distributed along the pedestrian crossing across the throu...

Zones 30 have been used for years in suburban districts as common traffic calming devices. The solution of zone 30 was used in a street in Szczecin. The street connects the area of detached houses with large panel housing estates. To reduce speed to 30 km/h, four successive raised areas were made of paving stone cubes as well as a 1 m wide median strip in the road axis. The change of asphalt blanket into paving stone cubes is thought to change the acoustic climate, due to differences of noise levels generated by t...