Mr Turner said his love for trains sprang out of his car-less student days, when a cheap, fast rail network was a "lifeline".
"It is no exaggeration to say that rail transformed New Zealand. When it was first pioneered here, mid last century, there were no inland road routes across the country, and large areas were inaccessible or impassable. If you wanted to travel any distance, you did so by sea.
"The early rail lines were lightweight and sharply curved, so the average speed was slow, but the many rural branch lines that fed the main trunks connected us as a nation, carrying us and our produce during the pre-automobile era and beyond. Trains ferried produce - meat, wheat, coal, timber - to cities and ports, and carried men to war."