WHAT IS THE MAXIMUM GRADIENT THAT A PPM VEHICLE CAN CLIMB?

PPM vehicles are designed to negotiate steep gradients on urban tramways (PPM cars' 'party trick' is to drive themselves up the ramp on to road transporters!). 

PPM tram cars are designed for gradients of at least 1 in 15 - and up to 1 in 10 if the application demands - although when used on railway branch lines the gradients will be much shallower.



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