A study from national development bank BNDES says Brazil needs to invest 234bn reais (US$68.8bn) to solve infrastructure issues in its 15 main metropolitan regions.

The bank is currently working on an action plan to fund the country's investment partnership program announced by interim president Michel Temer in May, Revista Ferroviária reported.

According to the bank's mobility and urban development architect Felipe de Oliveira, metro line construction in Minas Gerais state capital Belo Horizonte could be one of the first public-private partnership projects launched under the program.

Urban mobility is one of the bank's main priorities, and the Belo Horizonte metro works satisfies the bank's requirements. Although the city has a huge demand for urban mobility, its public transport capacity is quite low when compared to other cities, said De Oliveira in the report.

Although the investment schedule for this year was not defined in the report, the bank confirmed that overall funding would be considerably less this year. BNDES financed approximately 7.7bn reais in urban mobility and waterworks in 2015, and expects this year's funding to be approximately 70% of that.