I wonder if it would be possible to get a sound chip, not for the locomotives or rolling stock, but for the yard itself to make it a bit more authentic?
In Last train to Barrack Street at about 13.35 there is a view of St Joseph's Church and Monastery which is just across the road from Barrack St Yard. In the years before it closed, the predominant sound coming from the yard was the siren from the gantry as it moved up and down the yard loading and unloading containers on and off the train underneath it. However, in the days of steam engines and loose coupled four wheeled wagons, the sounds were quite different. As trains arrived in from different parts of the country they were 'broken up'. The wagons were uncoupled and loose shunted into the different sidings to wait until they were unloaded. The shunter(s) uncoupled and coupled the wagons with a shunting pole and ran beside the moving wagons, using the hand brake on the wagons to control the speed until they bumped into the wagons already in the siding with a clanging of the buffers. The shunters changed the points and told the drivers where to put the wagons. The engine drivers would always give a short whistle before they would move forwards or backwards. In the evenings, until about 2.00 am, wagons from the different sidings were assembled into trains and departed. Then there was about a two-hour break until about 4.00 am when trains began to arrive, and the shunting would begin again. Another sound coming from the yard then, was the language of the shunters, especially on a cold wet winter's night. For many years the monastery across the road was a Novitiate House and young novices, some fresh in from the country, were living on the top floor of the house, overlooking the goods yard and their tender ears were assailed by this language. According to the Monastery folklore, after one very cold wet night, the priest in charge of the novices went across the road to complain to the yard foreman, who responded "I have to agree with you, Father, the bl***y language is f**king awful!"