>>1248014Pt. 2
Comparison w/ Motorbuses
Aesthetics - The jumble of overhead wires may be perceived as unsightly. Intersections often have a webbed ceiling appearance, due to multiple crossing & converging sets of trolley wires.
Dewirements - Trolley poles sometimes come off of the wire. Dewirements are relatively rare in modern systems w/ well-maintained overhead wires, hangers, fittings, & contact shoes. Trolleybuses are equipped w/ special insulated pole ropes which drivers use to reconnect the trolley poles w/ the overhead wires. When approaching switches, trolleybuses usually must decelerate in order to avoid dewiring, & this deceleration can potentially add slightly to traffic congestion.
Difficult to re-route - When compared to motorbuses, trolleybuses have greater difficulty w/ permanent or temporary re-routings, wiring for which is not usually readily-available outside of downtown areas where the buses may be re-routed via adjacent business area streets where other trolleybus routes operate.
Overhead wires create more obstruction - Trolleybus systems employ overhead wires above the roads used by the trolleybuses. The wires can restrict tall motor vehicles such as delivery trucks & double-decker buses from crossing or using roads fitted w/ overhead wires, as such vehicles would hit the wires or pass dangerously close to them, risking damage & dangerous electrical faults. The wires also may create a hazard to activities such as road repairs using tall excavators or piling rigs, use of scaffolding, EtC.
Trolleybuses are used extensively in large European cities, such as Athens, Belgrade, Bratislava, Bucharest, Budapest, Chisinau, Kiev, Lyon, Milan, Minsk, Moscow, Riga, St. Petersburg, Sofia, Tallinn, Varna, Vilnius, & Zurich, as well as smaller ones such as Arnhem, Bergen, Coimbra, Gdynia, Kaunas, Lausanne, Limoges, Luzern, Modena, Piatra Neamț, Plzeň, Prešov, Salzburg, Solingen, Szeged, Târgu Jiu, & Yalta.