[3] The startline for the 1911 TT races was originally situated on a level section of the A2 Quarterbridge Road between Selborne Drive and Woodlands Lodge in Douglas.
[5] The 1920s wooden structure was demolished and replaced with a modern purpose-built brick design on newly acquired land for the 1986 TT Races.
The new development incorporated a race control and communications tower, a wider pit-lane and seating placed 30 ft (9.1 m) further away from the refuellers due to FIM requirements for enhanced competitor and spectator safety concerning fire-risk.
The deceleration lane provides a braking area, terminating in a hairpin turn-around loop in Nobles Park before connecting to the return road, leading back to the winners enclosure and parc fermé, situated as part of the paddock complex, for all race finishers.
The accommodation was in the form of 45 ft (14 m) stacked shipping containers, modified and fitted-out as commodious sleep cells.