The main idea behind project CL01000058 is to find suitable spatial and species compositions for vegetation belts of woody plants that will be planted specifically to reduce traffic noise. The aim of the project is to carry out repeated measurements at the same locations under different conditions. All research will be conducted with regard to future road and rail safety, as there must be no risk of vegetation falling and endangering lives and property. At the same time, attention will be paid to climate change, with measurements also being taken of structures that are expected to be in use in 20–30 years.
Acoustic measurements and laser scanning will be carried out at selected locations. Basic "model" measurements will be carried out at the Masaryk Forest Křtiny School Forest Enterprise, where the noise source will be a Brüel & Kjær omnidirectional source. Real vegetation along roads will also be measured, with the noise source here being the traffic itself. Based on real measurements, the effects of individual parameters on noise attenuation will be identified and a methodology for establishing tree belts near roads will be developed. The technical regulation (one or all, based on the requirements of the Ministry of Transport's application guarantor) will then be updated with the information obtained, which may then be used to update SŽ documents. The database will be helpful in designing noise reduction measures.
Project coordinator: Transport Research Center, v. v. i.
The methodology will address the optimal structure (tree species composition, spatial layout, and width) of strips of natural tree species and will define their effectiveness in reducing noise both on a seasonal basis (year) and in their development cycle (lifespan, rotation period, rotation time). These structures will also be related to the site conditions for their optimal installation along roads in the landscape. The methodology will include a proposal for the establishment of vegetation strips and their optimal maintenance. This approved methodology will be available to all interested parties from the professional and lay public on the CDV website. A link to the methodology will also be available on the project website (TAČR), or on the websites of other project participants or the application guarantor, the Ministry of Transport.
The database will be a useful tool for designing and comparing noise reduction measures. It will be an online catalog containing basic typologies of noise barriers with photographic documentation, economic calculations, detailed characteristics of woody vegetation in the barrier, a point cloud of the barrier from laser scanning, a numerical 3D matrix describing the density of vegetation on a voxel basis, visualization of this 3D matrix in the form of an image, and, of course, acoustic noise attenuation (efficiency) for a given vegetation strip. A new website will be created for the results, and a link to it will be available on the websites of the project participants, the project website (TAČR), and possibly also the application guarantor of the Ministry of Transport.
Partial research findings of a more technical nature will be summarized in the form of recommendations. The results will then be applied when updating any of the regulations dealing with vegetation or noise barriers near roads (namely, for example, TP 99, TP 104, or TKP 25), in connection with current legislative developments and the current requirements of the Road and Motorway Directorate, which prepares the regulations, and the Ministry of Transport, which guarantees them. The result will thus be part of the technical regulations accessible to all interested parties from the professional and lay public on the website www.pjpk.cz.
This project, Determination and optimization of vegetation strips of natural tree species composition serving to reduce traffic noise, is co-financed with state support from the Technology Agency of the Czech Republic and the Ministry of Transport of the Czech Republic under the TRANSPORT 2030 Program. This project is financed under the National Recovery Plan from the European Recovery and Resilience Facility.
We use cookies for traffic analysis and marketing purposes. Information about how you use our website is also provided to third parties who provide us with analytical and marketing tools, with your consent. Third parties may combine this information with personal data they have obtained from you and may subsequently transfer it outside the EU.
Choose your cookie preferences. Information on how we process cookies can be found in the Cookie Policy.
Cookies of this type are mandatory and cannot be disabled. They are necessary for the proper functioning of the website.
Through these cookies, we can analyze and evaluate the behavior of website visitors. This allows us to improve and tailor our website to your needs.