Initially it had a shelter shed, loading bank and crossing loop and was used to cross trains until the introduction of signalling at the larger Wairarapa stations.
Instructions for crossing trains required down (southbound) trains to take the siding or loop and up (northbound) trains to take the main line.
It also has a siding at its southern end which is used to cross trains.
The station had a passing loop and was used to regularly cross trains from 1874 until the line was duplicated in 1886.
This line carries one coal train each way each day, meaning the trip crossed trains both days.
The junction is a grade-separated structure that allows trains to run on and off without crossing on-coming trains on the level.
In the days of single-line working Ngahauranga was used to cross trains and in 1887 became one of the first stations in the region to receive new signalling equipment.
She often cross trains by snowshoeing in sub-zero temperatures and practicing yoga.
It is possible to cross trains at stations equipped with only a siding.
In 1891 the traffic situation on High Street reached a crisis, with the roadway blocked for up to seven hours per day by crossing trains.