Am intrigued about greasing wheels on the curves...
Had a trial run on Edinburgh`s new £1,000,000,000, yup 1 billion pounds, Tram.
Take it advantage of light over heavy rail is an ability to handle short in clines and tight curves, Edinburghs Ghost Train has tight curves which soun ded quite noisy inside.
Is it usual for tram systems to use greasing systems on the curves?
What wears first , the rails or the wheels?