Edited sentence: Circular lines (prefix "C" - C1, C2, C3), as the name indicates, run in a circular manner, usually connecting parts of the downtown area to the nearest neighborhoods.It is quite common to switch buses at downtown but, considering there is a myriad of lines there, it can be challenging to find the right terminal to hop on the next bus.It is recommended to check if the correct level is being charged in the beggining of the trip.Next to the value, there is a "flag" indicator that shows the level of price being paid, always according to the service.Tele-táxi may charge extra for this service.The "lotação" is an alternative system, with fewer lines, smaller cars (up to 20 people), where one can hop on and off at any point (i.The BR-101 connects Curitiba, Florianópolis and Osório, and is being upgraded to highway standards.The fare is usually more expensive.The other way to get to Porto Alegre from the North is using BR-101 to Osório.The price of the fare is determined by a machine called taxímetro, usually in front of the passenger seat.There are plenty of taxis.There is always a minimum price, which is shown when the machine is reset for the trip.They can be pricey, if compared to other towns, but they are also an easier, safer and more dependable option than buses in some cases.Those lines have no prefix.To ride a cab, one can walk to the nearest "taxi stop" (usually in crowded areas or points of interest), wave for an empty passing cab or call a tele-táxi service.Transversal lines (prefix "T" - T1, T2, ..., T11), connect different neighborhood without going through the downtown area, effectively eliminating the need of changing buses for the most common trips.Usually there is a table inside of the cab explaining each level of service.outside designated stops) of the trip