D5 Annex report WP 3: ETIS Database methodology ... - ETIS plus

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D5 Annex WP 3: DATABASE METHODOLOGY AND DATABASE USER MANUAL – FREIGHT TRANSPORT DEMAND region Ruhrgebiet in Germany. The goods are characterised by commodity group and characteristics such as manifestation, conditioned, hazardous and/or unitised. The volume of the goods is expressed in tonnes, value, tonnekilometres, number of vehicles/vessels, vehicle/vesselkilometres, number of TEUs and TEUkilometres. Because part of the information is estimated, on this level of detail the results should be interpreted in a proper way by transport experts. As the data is aggregated to a less detailed level, the results become more reliable and can be easier understand and interpreted. Detailed data can only be interpreted in the proper way by transport experts, in order to avoid problems with the interpretation of the results common users should only get access to aggregated OD data. The most detailed OD data can only be used by experts who are trained on the specific characteristics of the database. Developing a training program after the project might be an option. More aggregate submatrices will be developed for the final product that are easier to understand and interpreted by a broader audience. 66 Document2 27 May 2004

D5 Annex WP 3: DATABASE METHODOLOGY AND DATABASE USER MANUAL – FREIGHT TRANSPORT DEMAND 7 OBSERVATIONS UP TO PHASE 2 7.1 Introduction This chapter describes the observations up to phase 2 of ETIS reference database on legal aspects and organisational aspects. These descriptions will be extended along the course of the project based on experiences. 7.2 Legal aspects and organisational aspects EUROSTAT has provided data to ETIS free of charge for use within the project. No arrangements have been made yet on future use of the data by third parties outside the Commission. For now the data have to be considered restricted. Some data available at EUROSTAT (for instance international interregional road transport data) cannot be provided due to the statistical law or because of confidentiality reasons. For other data available at EUROSTAT (for instance the porttoport data) a license has to be signed in which it is expressed that the data will only be used in this project. The conditions of data delivery from national statistical offices also differ from country to country. For some countries the data can be downloaded from the internet without any restrictions (for instance trade data of Spain), the only restriction is that the statistical office should be mentioned as source (for instance transport data in the Netherlands), a price has to be paid and a contract has to be signed for restricted use (for instance transport data in Germany) or in addition an official letter from the European Commission is required (for instance transport data France). As has also been discussed at the second open conference of ETIS it is recommended that a discussion is opened on how this data collected can be streamlined in the future as a follow up of the current ETIS projects. Should this be done through EUROSTAT or is a less formalised approach more appropriate. In any case it should be attempted to come to long lasting agreements on data delivery to avoid time consuming data collection procedures. 7.3 Other remarks It has been observed in chapter 6 that the resulting OD matrix is very detailed which requires caution in its use. In case the most detailed level is used the reliability of the figures is in some cases relatively low due to the fact that some elements have been estimated. The user therefore has to be guided. One option is to provide only submatrices that do not contain all the variables in one matrix, to be used by the common users. The complete matrix can be used by expert users only which need to be trained to make the proper selections and interpretations. Document2 27 May 2004 67

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