Old Street Roundabout is a road junction in Central London, England. Historically a square roundabout, it is now a three-way junction. It is among access points of the Inner Ring Road for the adjoining St Luke's south part of Islington and the City of London beyond, west and south, respectively. It is roughly on the western limit of Hoxton in the London Borough of Hackney which straddles both sides of the Ring Road, a road which after taking up a little of the eastern part of Old Street then veers south-east, taking Great Eastern Street, at Apex Junction.
It is sometimes known as St. Agnes Well after the shopping centre beneath it, while the moniker of Silicon Roundabout owes to the local prominence of technology companies. Since October 2020 the layout has been a simple junction, not gyratory.[1][2]
morg
was invoked but never defined (see the help page).