What buses to use on what lines?

19 - 29: 12m bus recommended, it's a quiet line.>
20: at least 15m/18m bus recommended, it is a busy line during the day. 12m/10m should do fine at nighttime/weekend though.‎
21: 12m bus recommended because of tight turns along the route. It can get busy during rush hours, so make sure to pick a high capacity 12m bus.‎
22: Only use buses up to 12m. Short line with very tight corners around the Siedlung Hohn area. 
23: 18m or bigger on longer versions, 12m is okay on shorter versions
25: 12m bus recommended (although articulated will fit also). Überland bus is perfect to use on this line
27: Any bus is fine on this route. 18m bus reccomended during rush hour. Watch out for the second to last corner in the direction of Osterfelder Markt (bus stop Hohlweg). This corner is difficult with 18m, but do-able.
28 - High capacity 12m bus or if you think you can handle Osterfeld Markt area with 18m, that is also option

810A/810B/811 - Don't use hybrid (incl MAN A37), CNG buses & coaches, they are too high for the tunnel near Pöllen stop  
818: Articulated bus recommended, it is a busy route.
821: 12m reccomended, Derenhofen new area has extremly tight turnabout.
828/838: - Exit from Banhof Niederburg is tight. 15m buses not reccomended.

E80/E81/E82: 15m/18m bus recommended. Express routes in Laurenzbach can get quite busy, especially during the rush hours. ‎

ALX/AE/SB6: Volvo 9900, MAN Lions Coach (L), or any other überland buses. Using an articulated bus on this route can be a bit tricky, because of the AI traffic on the highways. ‎

NE1: - Buses up to 12m reccomended
NE2: Don't use hybrid (incl MAN A37), CNG buses & coaches, they are too high for the tunnel near Pöllen stop  
NE3: Articulated bus‎
NE5: Articulated bus‎
NE9: 12m or smaller‎
NE11 - Don't use hybrid (incl MAN A37), CNG buses & coaches, they are too high for a certain bridge on the route.

Do not use double deckers on this map.