> with the added disadvantage that changing routes is tremendously expensive since you need to lay new track. That disadvantage is actually a good thing when

> with the added disadvantage that changing routes is tremendously expensive since you need to lay new track. That disadvantage is actually a good thing when you're buying real estate, a bus route can change but my tram stop has much more permanence. It also doesn't have to be an either/or thing, my local trams are dedicated in large parts but on road where congestion is lighter.