About 50 ventilation shafts were constructed during the construction phase.
Midpoint tunnel ventilation shafts remain between stations.
Special "local arrangements" are in place should it be necessary to evacuate passengers from trains via Netherton Road emergency escape shaft.
Planning permission for a shaft at Ferry Lane, next to Tottenham Hale station, was granted on 11 January 1968, during the first phase of construction.

By mid-2009, trial boreholes for a cooling system at Green Park station had been created and more were scheduled to be created by the end of 2009.
In 2010, Engineering & Technology reported that 200 litres (44 imp gal) of water per second for the cooling system was being pumped through heat-exchangers at Victoria station from the River Tyburn and into the River Thames.

Between 2009 and 2014, thirteen ventilation shafts were refurbished.
In the first phase were Drayton Park, Gillingham Street, Moreton Terrace, Pulross Road, Somerleyton Road and Tynemouth Road.
For the second phase were Cobourg Street, Dover Street, Gibson Square, Great Titchfield Street, Isledon Road, Kings Cross, Palace Street and Rita Road.

By 2009, changes at Cobourg Street were in the planning stage and demolition at Moreton Terrace, Somerleyton Road and Drayton Park shafts had taken place.
Planning permission for Netherton Road shaft was granted on 8 September 1967.
On 31 March, the demolition and rebuilding of Netherton Road shaft was allowed as permitted development.
About 50 ventilation shafts were constructed during the construction phase. Midpoint tunnel ventilation shafts remain between stations. Special "local arrangements" are in place should it be necessary to evacuate passengers from trains via Netherton Road emergency escape shaft. Planning permission for a shaft at Ferry Lane, next to Tottenham Hale station, was granted on 11 January 1968, during the first phase of construction.
By mid-2009, trial boreholes for a cooling system at Green Park station had been created and more were scheduled to be created by the end of 2009. In 2010, Engineering & Technology reported that 200 litres (44 imp gal) of water per second for the cooling system was being pumped through heat-exchangers at Victoria station from the River Tyburn and into the River Thames.
Between 2009 and 2014, thirteen ventilation shafts were refurbished. In the first phase were Drayton Park, Gillingham Street, Moreton Terrace, Pulross Road, Somerleyton Road and Tynemouth Road. For the second phase were Cobourg Street, Dover Street, Gibson Square, Great Titchfield Street, Isledon Road, Kings Cross, Palace Street and Rita Road.
By 2009, changes at Cobourg Street were in the planning stage and demolition at Moreton Terrace, Somerleyton Road and Drayton Park shafts had taken place. Planning permission for Netherton Road shaft was granted on 8 September 1967. On 31 March, the demolition and rebuilding of Netherton Road shaft was allowed as permitted development.
Victoria line