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The further expansion of decentralized renewable energy sources and ramp-up in electric mobility and heat pumps triggers the need for traditional grid reinforcement measures. To effectively address the growing demand, it is crucial to simultaneously assess numerous options to generate technically optimal and economically feasible solutions. Therefore, new traditional grid reinforcement measures are introduced to the grid planning tool, eDisGo, and grid reinforcement simulations are conducted on high-resolution synthetic grid models representing the German grids for the investigations. Firstly, one scenario representing the future state of the German grid and six synthetically generated medium voltage grids, including underlying low voltage grids, are chosen. After grid issues are determined by respecting voltage and loading limits with power flow analyses based on the selected scenario, the existing and new measures are applied to the grids as a group or individually to solve the issues. Subsequently, with the results obtained for the MV and LV grid levels, the changes in the grids are analysed, and the extent to which the employed measures provide improvements. Lastly, as a result of the analyses, considering the grid reinforcement costs of each measure or measure group, the optimal solution for each grid characteristic is presented. In grids with highly loaded long feeders and a high number of feeders, reinforcements for LV grids with an additional MV/LV substation can offer the most suitable solution in terms of cost and improvement ratings. Splitting the feeders at a particular point provides cost-efficient solutions in reinforcing critical voltage deviations in MV and LV grids. In the reinforcement of overloading issues, the most optimal solutions cost- and improvement-wise is generally adding-line-based measures if the feeders are not long and comprised of highly overloaded lines. Optimization of switching unit in medium voltage rings conducted based on the loading of the feeders; although it is not a suitable solution in every case in terms of cost and improvement, costs can be kept at a lower priority since it is a vital reinforcement measure in terms of ensuring supply reliability in the rings.