singapore's public transport system has been mostly buses, until the opening of the first section of the mass rapid transit in 1987. although buses still enjoy an average daily ridership exceeding the number carried on both the mrt and lrt systems (3.9 million on buses, compared to 3.1 million on the mrt and lrt in the year 2016), the land transport authority plans to expand the rail system such that buses will eventually play only a feeder role to an extensive rail network.