In modern life aircrafts are one of the most disturbing noise sources. Vibrocomp determines and reduces the noise coming from aircraft operations in the vicinity of airports.

VIBROCOMP predicts aircraft noise from existing and planned airports or airport expansions, we determine the noise protection zones around airports and deliver cost effective solutions to reduce aircraft noise.

Vibrocomp provides the following services:

• Noise prediction and noise mitigation measures
• Determination of the future effect on people, and what mitigation measure is optimal at your airport
• Noise monitoring measurements
• Traffic optimization according to sleeping hours
• Encouraging airlines to use even more new generation aircraft
• Optimization of the use of the runways according to disturbance
• Flight track and style - approach and take off - optimization
• Noise insulation at dwellings close to the airport
• Assigning of noise protection zones around the airport
• Reduction of ground (taxi, handling) noise
• Land use planning to avoid future problems around airports
• Noise monitoring system
• Public awareness raising

Land use planning should be always carried out when planning new developments at airports. The study can take future aircraft operations as a basis. In the results for example the RED noise zones shows where residential areas cannot be planned, and where only industrial sites should be developed.

Our model will show you the present and future silent zones in the airport neighbourhood and where we can suggest to put the sensitive buildings

At Budapest Airport, where Vibrocomp is responsible for environmental noise protection since 2008 Vibrocomp’s work consist of noise measurements, noise prediction /modelling/ of current and future aircraft operations, noise reduction planning, support in PR communication and any other noise related issue at the airport.

Public complains around the airport dropped by over 80% since 2008 as the result of the major achievements in noise protection by the Airport supported by the professionalism and expertise in noise reduction and public communications of Vibrocomp.

VIBROCOMP has calculated and reduced noise at the most important international airports in Hungary and Romania: Budapest Liszt Ferenc, Bucharest Henri Coanda and at over 20 regional international airports in both countries (eg. Balton-Hévíz, Cluj-Napoca, Debrecen, Győr Audi Cargo, Nyíregyháza, Pécs-Pogány, Satu Mare, Sibiu, Szeged, Timisoara) Our experts have been also been involved in evaluations of several international projects to lower aircraft noise. (FP7 Evaluations for AAT.2008.1.4.1. Integrated approach to lowering aircraft external noise, FP7-AAT-2012-RTD-1, FP7-AAT-2013-RTD-1 & FP7-AAT-2013-RTD-RUSSIA)

Design of engine test-facilities at airports

With the number of aircrafts maintained in the two main maintenance centres in Budapest increasing, the capacity of the existing aircraft engine test facilities in Budapest slowly became insufficient. Therefore, engine tests had to be carried out in free field without proper noise protection. VIBROCOMP measured and predicted the emitted noise levels from the engine tests of the most common aircraft types, based on which, a cost effective, low noise aircraft engine test facility was planned. This low noise test facility fulfils the high standards set and significantly reduces the noise at the neighbouring commercial and residential areas.

GCC references:

Sharjah International airport

Architects can benefit from our model prediction when considering an environmental friendly and sustainable development with comfortable interior noise levels. Usually mitigation measures are best and cost-effective in the planning phase.

For buildings neighbouring airports, roads or railroads we are able determine the future effect on people, and if mitigation measures are necessary.

Facade Noise Maps are able to present the noise level at every single point at the facade of the building. In the illustration the 3D building models are coloured according to the real noise levels at the facade of each floor of each building. Based on the model calculation you will know exactly which cost-effective noise abatement measure is needed at every floor to ensure comfortable interior noise levels.

Facade Noise Maps support building design. Based on facade noise maps one can take the noise load of the different facades of the building in decision, when developing apartment / office layouts.

Building Acoustics to ensure comfortable interior noise levels!

Prediction and mitigation of structure born noise. Vibrocomp predicts Vibration at buildings close to rail bound transport infrastructures, if necessary cost effective building insulation is planned.

Vibration prediction and mitigation of duct systems.

Vibrocomp ensures that all mountings are appropriate for the design loads, operating and environmental conditions.

Vibrocomp carries out vibration prediction calculation on a model to ensure, that the isolators selected are appropriate for the operating weight of the equipment and are positioned for equal deflection.

Vibrocomp provides all necessary information, including but not limited to actual loads and running speeds, to the vibration isolation specialist/supplier to enable final isolator selections to be made. Selection shall allow for uneven load distributions such that the minimum deflection is achieved on all vibration isolators under normal operating conditions.

Constructions come usually with short term very high levels of noise and sometimes vibration. In order to minimize the effect of constructions on the neighbouring sensitive areas VIBROCOMP measures models and predicts the noise and vibration coming from construction activities. Mitigation measures are the best and cost effective, when planned in the preparatory phase of the constructions according to the organization plan.

• noise and vibration prediction from any kind of construction
• noise and vibration mitigation from any kind of construction
• noise and vibration modelling along transport routes during construction
• noise and vibration monitoring measurements, during construction to ensure the safety sensitive buildings around the construction site

Vibration prediction and permanent monitoring of sensitive buildings during constructions

Construction in cities very close to sensitive or old historical buildings is always a challenge. VIBROCOMP predicts the vibration load of the construction and also the vibration sensitiveness of the building. VIBROCOMP sets limit values for the vibration load that the construction must not exceed at the critical points of the building. VIBROCOMP places up to five permanent monitoring systems at the most sensitive points of the protected building. If for any reason, the vibration is close to the limit, the systems send an instant SMS alarm to stop the current construction procedure. VIBROCOMP uses this system to control the construction of a parking garage and a visitor centre beside the more than 100 years old Hungarian Parliament Building

Industrial developments nowadays face a significant challenge to reduce their noise emission both inside the plant /workplaces/ and in the surrounding environment. Vibrocomp gives quick and accurate answers to the questions and provides cost-effective noise and vibration solutions if reduction is necessary

For existing industrial plants and future developments Vibrocomp provides the following services:

• Noise and vibration measurements, modelling prediction and mitigation
• Noise calculations in and outside: noise coming from the outside sources can be modelled inside buildings such as workshops, warehouses, etc.
• Acoustic studies for PA/GA systems
• Vibration insulation for heavy machinery

The input data for the noise modelling of industrial noise are:

• sound power levels of the noise sources,
• information on the type of building walls, windows
• operating time for the noise sources during day, evening and night,
• topographic information,
• height and sound absorption coefficients for noise barriers and buildings,
• ground effects,
• atmospheric absorption,
• meteorological conditions.

It is considered unlikely that sufficient information will be available on the specific plant items. Vibrocomp collects the necessary input data, wherever input data is not available Vibrocomp uses either company internal data from previous similar projects or maximum plant noise emission limits to be calculated and set in relation to the nearest sensitive receptors.

Vibrocomp sets up for the noise calculations a 3D model of the industrial area. Noise calculations will be carried out on this noise model.

Vibrocomp has significant references in the Power, Mining, Oil and Gas industry.

Noise model and noise reduction plan for the Seaport of Constanta in Romania

The Port of Constanta is the largest on the Black Sea and the fourth largest in whole Europe. The port is located in Constanta, Romania, on the western coast of the Black Sea., 179 nautical miles (332 km) from the Bosphorus Strait and 85 nmi (157 km) from the Sulina Branch, through which the Danube river flows into the sea. It covers a total are of 47 km2.

VIBROCOMP prepared and used the noise model to predict and to reduce the noise coming from the over 1500 different noise sources of the port. The noise level of every group of noise source has been measured individually. VIBROCOMP planned cost effective noise reduction measures to ensure that limit values at the neighbouring residential areas are met.

Noise model and noise reduction plan for the open cast coal mine and power plant in Visonta and Bukkábrány in Hungary

Mátrai Erőmű with an installed output of 836 MW is the largest coal-fired power plant in Hungary. Its main profile is electricity production providing up to 13% of the national demand. This electricity is produced from a local energy source: lignite.

The lignite production in Visonta and Bükkábrány takes place through strip mining. According to strip-mining technology, the dirt beds (clay, mud, sand etc.) above lignite seams must be removed first then dead materials must be backfilled into the mine-openings. As soon as one of the trenches are exhausted, mining goes further on and any exploited dead materials are to be inserted into the hollow of the previous area.

Winning coal occurs with help of crawler-bucket ladder excavators and one-bucket dredgers. The materials won are transported with a network of conveyor belts.

VIBROCOMP prepared and used the noise model to predict and to reduce the noise coming from over 1000 different noise sources at the two mines and the power plant. The noise levels from every group of noise source have been measured individually. For the model calculation VIBROCOMP prepared very detailed three dimensional terrain models for future excavations. VIBROCOMP planned cost effective noise reduction measures to ensure limit values at the neighbouring residential areas are met.

Other references:

Rabigh II 

GDF-SUEZ powerplant in Százhalombatta

Gas compressor station in Városföld

Al Zara powerplant in Syria

Vibrocomp supports road infrastructure development projects with noise model calculations and noise abatement plans

Vibrocomp provides the following services from sketch to construction:

• noise mitigation planning for the road and the change in traffic due to the development in the vicinity
• determining the future effect on people, and if mitigation measures are necessary
• mitigation measures: if noise barriers, silent pavement or other reduction measures are necessary we deliver the acoustic design and the cost prediction
• cost-effective noise abatement solutions
• noise and vibration planning for the construction
• noise and vibration modelling along transport routes during construction
• permanent noise and vibration monitoring for the sensitive buildings during the construction

VIBROCOMP is expert in noise prediction and abatement planning for existing and future urban roads and motorways. In the EU VIBROCOMP planned noise reduction (eg. barriers) for over 1200 km of existing and future roads, including full sections of the busiest A1, DJ68, DN1, DN59, M0, M1, M2, M3, M5, M7, M9, M15, M35, M85, M86 motorways.

GCC references:

Noise barrier design at Beirut street, Dubai UAE

Noise barrier design JVT, Dubai UAE

Vibrocomp supports rail infrastructure development projects with noise model calculations and noise abatement plans.

For rail, metro or tram developments Vibrocomp provides the following services from sketch to construction:

• noise mitigation planning for the rail and the change in traffic due to the development in the vicinity
• determining the future effect on people, and if mitigation measures are necessary
• mitigation measures: if noise barriers, vibration insulation under rail or other reduction measures are necessary we deliver the acoustic design and the cost prediction
• cost-effective noise abatement solutions
• noise and vibration planning for the construction
• noise and vibration modelling along transport routes during construction
• permanent noise and vibration monitoring for the sensitive buildings during the construction

VIBROCOMP is expert in noise and vibration prediction and abatement planning for existing and future railways. In Hungary and Romania VIBROCOMP planned noise reduction (eg. barriers) for over 600 km of existing and future railways, including full sections of the busiest Budapest-Balatonszentgyörgy, Budapest-Hegyeshalom, Budapest-Nyíregyháza, Cluj-Napoca-Oradea, Cluj-Napoca–Turda, Gyoma-Békécsaba, Pitesti-Bucuresti, Sopron-Szentgotthárd and Timisoara–Arad international (cargo) railways.

Noise and vibration prediction and reduction plans for tramways and subways in cities

When it comes to environmental friendly urban public transport development subways and tramways are the preferred alternatives. VIBROCOMP is expert in calculating the noise and vibration from rail bound public transport. We also deliver cost effective solutions to reduce the noise and vibration in the vicinity of the new lines. VIBROCOMP planned noise and vibration reduction for over 500 km of rail bound urban public transport systems in Hungary and Romania, including metro line nr 4., the cog wheel line, tramlines 1, 3, 17, 19, 42 in Budapest, tramline nr 101, 102 in Cluj-Napoca, tramline nr 100, 102 in Craiova tramline nr. 2 in Debrecen tramline nr. 4 in Szeged and tramline nr 1, 2, 4, 6 in Timisoara. Our experts have been also involved in the planning of the Tripoli Metro line in Libya.

In the newly developed Budapest Metro Line Nr 4 (10 km deep under soil construction crossing the river Danube and 10 new stations) Vibrocomp provided the following services from sketch to construction:

• environmental noise planning for the line and the traffic
• environmental noise, air and vibration planning for the construction of the new stations
• vibration planning for the tunnel construction
• vibration planning for the rail, the car and the tunnel
• vibration planning and acoustics for the existing buildings
• noise and vibration monitoring at the construction sites of the new stations
• noise, air pollution and vibration modelling along transport routes during construction
• noise and vibration monitoring for the tunnel construction in the buildings above
• permanent vibration monitoring for the sensitive buildings during the construction

Urban planning nowadays faces more and more the challenge of sustainable environmental friendly development. While still being in the planning phase, VIBROCOMP predicts the noise and vibration impact of future urban developments. This means you can integrate the environmental factor into your decision-making procedure when evaluating alternatives

Use our model prediction when considering an environmental friendly and sustainable urban development for: 

• buildings neighbouring airport, road and railroad projects to determine the future effect on people, and if mitigation measures are necessary
• building layout: with our building acoustics so you can take the environmental factor in decision, when developing your apartment layouts
• location of sensitive buildings: our model will show you the present and future silent zones in the city where we can suggest to put the sensitive buildings
• mitigation measures: if noise barriers or other reduction measures are necessary we deliver the acoustic design and the cost prediction
• noise and vibration prediction from operation and construction
• noise and vibration mitigation from operation and construction
• noise and vibration monitoring measurements, during construction to ensure the sensitive buildings around

Based on the noise models Vibrocomp will determine the noise in the different scenarios of the proposed development. If it is necessary cost-effective mitigation measures will be identified and the achievements presented on the noise model. Difference maps will be drawn up to present the difference in noise levels!

VIBROCOMP has prepared sustainable environmental friendly urban development plans to improve the quality of life in major cities like Budapest, Cluj-Napoca, Craiova, Debrecen, Győr, Kecskemét, Szeged Timisoara and Tripoli.