Diesel trains + whistles

[MCDomYT]

Now we have oil, could this not be turned into diesel(not too sure on RL production) but if it were possible then we could have better trains that are faster or intelligent. Also need train whistles!! The amount of time i cross my track and i've died due to a train running me over is quite alot. Trains should whistle when eirher leaving the station and/or going over whistle track. Aldo a keybinding to whistle manually.