Also proposed was an outdoor 1.7-kilometre (1.1 mi) closed road circuit race track and a mountain bike skills area which would have been built on The Sanctuary bird and wildlife reserve.
[7] An injunction brought against Derby City Council by Derbyshire Wildlife Trust led to a Judicial Review being granted which could have overturned the planning approval.
[9] Accreditation to be permitted to use the track will require a four-stage training course, taking six hours to complete at a cost of £65, announced in a package of charges in August 2014.
[10] The Arena hosted its first major track meeting in August 2015, when it hosted the opening round of the 2015-16 Revolution series, featuring a number of Olympic and World champions including Bradley Wiggins, Mark Cavendish, Laura Trott, Joanna Rowsell Shand, Jason Kenny and Ed Clancy.
[14] Derby City Council relocated their annual pantomime to the Arena from 2015 onwards, following the fire-related closure of the former Assembly Rooms venue.