>>1008823Monorail switches are way shorter which is an valuable advantage in a urban environment. For any northern region energy consumption and maintenance is lower. At least for suspended monorail. It's better protected from harsh whether. Ordinary overground rail switches usually need to be heated during winter to prevent failure.
Accidents are less likely then for trams, in case a car is badly damaged the next car comes in slowly, is coupled and both go to depot.