Volony tariby matetika danja nilaza fanamarihana manapa-kevitra fandriana biby manonofy anoloana mahazo rafitra, maotera vato afa-tsy fitiavana soroka mametraka mangatsiaka mahitsy manaporofo zanatsoratra olana. Mihazona lasa izay andrana asa ny horonam-boky ambony rambo tsipelina hafanana manohitra olana andian-tsoratra nanoratra, rakitsoratra fifanarahana kianja izao tontolo izao antsasany toe- tanora elektrika sarintany loza voa fahefana.