inter.noise 2000
The 29th International Congress and Exhibition on Noise Control Engineering
27-30 August 2000, Nice, FRANCE

I-INCE Classification: 7.6


F. Elbers*, J. Oertli**

* NS Technisch Onderzoek, Concordiastraat 67, 3551 EM, Utrecht, Netherlands

** Swiss Federal Railways, Parkterrasse 14, CH-3000, Bern 65, Switzerland

Tel.: +31 30 2358128 / Fax: +31 30 2359150 / Email:



This paper presents Eurano99: A noise policy tool for monitoring and prediction of large scale impact of railway noise. This tool was recently used for two mayor European studies: (1) Cost-Benefit Analysis for European Rail Noise Abatement, to support the decision making process of the UIC brake block initiative and (2) Economic study for Silent Track, Silent Freight and Eurosabot, to support the decision making process of introduction of source measures on railway noise. Eurano99 Data Manager is the tool for data collection used by DB-AG, SNCF, SBB and NS Technisch Onderzoek. The Eurano99 database has information on two mayor European freight railway lines Rotterdam-Köln-Basel-Milano and Bettembourg-Lyon. Eurano99 Analysis calculates for source reduction scenarios, noise legislation scenarios and/or traffic scenarios the noise impact and cost and extent of forced noise measures.


Eurano99 is an improved and enlarged tool of the Gerano software. Development of the Gerano concept started in 1995. Eurano99 combines two comprehensive tools (1) Data Manager for collection of national data and (2) Analysis for calculation of noise impact and cost and extend of forced noise measures for different scenarios. For the UIC sponsored Cost-Benefit Analysis (CBA) study data collection was undertaken by a team of noise researchers in Germany (DB-AG Forschung Zentrum), France (SNCF Direction de la Recherche), Switzerland (SBB) and The Netherlands (NS Technisch Onderzoek). Data exchange to a central data set was undertaken with internet connection. For both the CBA study and the Economic study calculation of noise scenarios was undertaken for one combined data set on a central computer. Figure 1 shows the way above mentioned companies work together with the Eurano99 software tools.

Figure 1: Network configuration and software tools for collection of national data and for noise calculation.


Geographical data collection is undertaken on the basis of 1:25.000 topographical maps. Geographical elements are railway lines, urban areas and individual houses. Figure 2 gives two samples along the Germany and French part of the railway line. Data collection is undertaken by individual railway companies within national co-ordinate systems. This concept gives many opportunities to use national general topographical information and to use available railway data within the company.

Figure 2: Sample of geographic data collection with Eurano99 Data Manager along the French part of the railway line and an overview of the European dataset.

The input of the railway line related data is undertaken by the geographical interface. In the Eurano99 data model railway line related data does not have geographical information. A connection to the geography is made by a code of line number and meter position. This concept in combination with the use of a database improves performance and keeps data sets compact. Railway line related data is supported for number of (meter) trains per hour, train speed, track construction, tunnels, noise barriers and track height. To meet local noise prediction methods Eurano99 supports a combination of 30 train types and 30 track types. Figure 3 gives two samples.

Figure 3: Sample of railway line related data collection (track type, number of trains and train speed).


To be able to calculate different scenarios for one combined European data set, national sets of Germany, France, Switzerland and The Netherlands were combined within Eurano99 Analysis. For compiling this combined data set the tool supports two way geographical transformation between Rijksdriehoeks co-ordinates (The Netherlands), Gauss-Krüger co-ordinates (Germany), Schiefachsige winkeltreue Zylinderprojektion (Switzerland) and Lambert 2 (France) via WGS84.

A schematic presentation of the Eurano99 modules is given in figure 4:

Three modules can be adapted to specific policy questions like: What measures are forced to meet a 60 dB(A) limit? What is the consequence of source measures for freight wagons? What is the consequence if the freight traffic volume will increase with x %? Results of Eurano calculations is the noise impact and cost and extend of forced noise measures for a specific noise policy scenario.

Figure 4: Schematic presentation of the Eurano99 modules: data management, noise creation, noise propagation, noise reception, noise measures and annoyance.

Eurano99 supports 30 different kind of train types. Noise creation values are approximated to national prediction methods. Train types that run on those two freight lines are selected for the purpose of those projects. The noise creation default values are given in figure 5.

Figure 5: Eurano99 default noise creation values used for the projects [1] and [2].


Eurano99 is a proven powerful software system for support of large scale noise policy questions. Eurano99 can handle thousands of kilometers railway lines including urban areas and houses within a zone of about 1000 m. A wide variety of questions are tested in the studies Cost-Benefit Analysis for European Rail Noise Abatement [3] and Economic study for Silent Track, Silent Freight and Eurosabot [4, 5]. Further improvement, enlargement and use of Eurano will be made in the EC/UIC sponsored project STAIRRS.


We like to thank Manfred Beier, Stéphanie Joncour and Brian Hemsworth for their work in the Cost-Benefit Analysis group. With their effort and the confidence of the UIC Task Force Noise we were successful in integrating national noise prediction methods, collecting data and building and using a common software tool for these strategic studies within one year.


[1]   Jakob Oertli, Frank Elbers, Manfred Beier, Stéphanie Joncour and Brian Hemsworth, European Rail Noise Abatement: Cost-Benefit Analysis, UIC Task Force, 1999
[2]   Frank Elbers and Rik van Haaren, European economic study on railway noise reduction measures, NS Technisch Onderzoek, 2000
[3]   Jakob Oertli, European Rail Noise Abatement: Cost-Benefit Analysis, Internoise2000, 2000
[4]   Frank Elbers and Paul van der Stap, Economic study on railway noise: Environmental impact of different noise legislation, Internoise2000, 2000
[5]   Rik van Haaren, Economic study on railway noise: Effectiveness of different source reduction configurations, Internoise2000, 2000