Highbury Avenue is an arterial road located in the Canadian province of Ontario. In addition to serving as a primary north–south thoroughfare in eastern London – through which part of it is a limited-access freeway – the road also provides access to Highway 401 and continues south to St. Thomas. The southern terminus of Highbury Avenue is an intersection with South Edgeware Road, just north of Highway 3 and the eastern end of the St. Thomas Expressway. From there, it travels north to Highway 7, east of Elginfield. Outside of London and St. Thomas, the road also passes through the communities of Ballymote and Bryanston. It is designated as Elgin County Road 30 within Central Elgin, and as Middlesex County Road 23 within Middlesex Centre, the two rural municipalities through which the route passes. North of the Thames River, the road was laid out as part of the survey of London Township. It came to be known as the Asylum Side Road until being renamed Highbury Avenue in 1928. It was extended south of the river to Highway401 as a four-lane freeway in 1963, which the City of London named the Wenige Expressway in 1965. Between 1963 and 1991, the section from Wilton Grove Road to Hamilton Road was provincially maintained and designated as Highway 126. In the 1990s, Highbury Avenue was continued south to St. Thomas along Hubrey Side Road and Radio Road. Route description Highbury Avenue is a road that travels north from St. Thomas, through London, to Highway7, east of Elginfield. Located within Elgin County, Middlesex County and the City of London, it is classified as an arterial road throughout its length, with the exception of a section between Highway401 and the Thames River, which is classified as a freeway by the City of London. Between St. Thomas and London, approximately 15,000vehicles travel Highbury Avenue on an average day. This climbs to 48,000vehicles at the Thames River crossing before gradually dropping to 30,000vehicles at Fanshawe Park Road. North of there, traffic levels drop to 9,000–10,000 through Middlesex Centre. South of Highway 401 The southern terminus of Highbury Avenue is an intersection with South Edgeware Road, just north of Highway3 and the eastern end of the St. Thomas Expressway. It travels in a straight line north as a two lane road through an industrial park on the outskirts of St. Thomas and crosses the Ontario Southland Railway tracks.