The aim of this deliverable is to provide a compendium of baseline data that can be used for the cost benefit analysis which have to be carried out in WP5.4. Baseline data are necessary to calculate the reference situation or scenario and to compare the results with scenarios where C4R innovations are applied. The baseline data presented in this deliverable are reduced to the data which are required for the CBA. As the innovations like the slab track in SP1 are novel required detailed data are not available with sufficient reliability. To overcome this approach only “top level” data for costs and lifespan are considered and collected. This means the data structure for the baseline data is much simpler than the templates for LCC and RAMS described in D5.2.2. The benefit of this approach is to get more confidence in the calculation. The CBA can calculate target costs for the innovation where the benefit of the innovative solution is higher than the reference case. These target costs can be used in the optimization of the innovative solution. In this case the detailed cost structure is necessary for the technical and financial optimization and therefore outside the CBA. This top down approach makes the assessment much easier, as unknown costs are eliminated. The data collected are from different sources but mostly from the European projects InnoTrack and AutoMain. In both projects technical and economic data are collected and normalized. The data presented in this deliverable are divided into • boundary and system parameters, • investment and lifespan data, • maintenance and renewal data and • data about rolling stock and include only baseline information. Corridor specific data are given in the deliverable D5.4.2/3.