Currently, the EU is facing an ageing population. The key task of EU Member States is therefore to ensure a sustainable pension system. One of the tools used for this sustainability is long-term savings in pension funds. In order for this tool to be functional, the pension fund must ensure the preservation of the value of savers’ savings over the long-term savings horizon. Deposits in pension funds must be stored safely and be resistant to negative fluctuations in financial markets. The article deals with the idea of interlinking Pension Funds with Public Private Partnership projects in the field of transport. This connection has the potential to bring Pension Funds the sought-after safe investment, which also has to overcome inflation in the long term. The use of accumulated capital of Pension Funds in public PPP projects, which can simultaneously bring a rejuvenating financial injection and increase the efficiency of competitive projects.