Tony Abbott. Transport Warringah Road is the main thoroughfare that connects Forestville to the adjacent suburbs of Roseville Chase and Frenchs Forest. Two different bus companies operate in Forestville. The privately held Forest Coach Lines operates numerous routes through the suburb, connecting Forestville to the Sydney CBD, Chatswood, Terrey Hills, Mona Vale and Warringah Mall. Keolis Downer Northern Beaches operate a single bus route, which runs from Chatswood to Dee Why and passes through Forestville. References Suburbs of Sydney Northern Beaches Council