Question: What is the capacity of the stadium that Stadium railway station, Perth will serve?

Context paragraphs:
Khadki railway station: Khadki Railway Station is on the Mumbai - Pune Railway route.  It is owned by central railways department of Indian Railways.  Sinhagad Express, Sahyadri Express, Deccan Express, Koyna Express and Mumbai - Chennai Express have their halt at this station.  It has four platforms, six lines and one footbridge and is an electrified station.  The nearest railway station is Pune Railway Station and nearest airport is Pune International Airport at Lohegaon (Viman Nagar).  The Pichola offers accommodation which is just 4 km away from the station.  This is a Major halt for Military.  This makes this an important station on Pune Suburban Railway.  This station is to the east of Khadki Auto Rickshaw Stand and is near Khadki Bazaar.  This Station was built for access to Khadki Cantonment (Kirkee Cantonment).  Even today this station is mostly used for Indian Army.  The CAFVD Sports Stadium is in front of this railway station which hosts local Association Football and Field Hockey matches.

Watford Stadium Halt railway station: Watford Stadium railway station is a disused railway station in Watford, Hertfordshire, United Kingdom on the branch line from Watford Junction to Croxley Green .  It served Vicarage Road stadium, home of Watford F.C., and was open only on match days.

Meadowbank Stadium railway station: Meadowbank Stadium railway station was opened on 14 June 1986 by British Rail next to Meadowbank Stadium in Edinburgh to allow spectators to travel to the 1986 Commonwealth Games that were being held at the stadium.  A shuttle service ran from Edinburgh Waverley: at most times this consisted of a single train running at 20–30 minute intervals, but at times of high demand a second train was used and frequencies were higher.  These operated from platforms 20 and 21 at Edinburgh Waverley, and a temporary ticket office nearby was the only outlet at which tickets could be bought.  Special pre-printed Edmondson tickets were issued at a flat fare of £0.50.

Howrah Junction railway station: Howrah Junction railway station (station code HWH) is the largest railway complex and biggest railway station in India.  It's the busiest railway station in India in terms of train frequency after Kanpur Central, Vijayawada Junction, Delhi Junction, New Delhi and Ambala Cant.  Around 673 train routes start, end, or pass through the station daily.  With 23 platforms (the largest number of platforms in the entire Indian railway system), it has the highest train-handling capacity of any railway station in India and is one of the busiest railway stations in terms of passenger volume per day.  It is one of the five intercity railway stations serving the city of Kolkata, the others being Sealdah Station, Santragachhi Station, Shalimar Station and Kolkata railway station.  The terminal station is located on the West bank of the Hooghly River and is linked to Kolkata by Howrah Bridge.

Abbeyhill Junction: Abbeyhill Junction was a railway junction in Abbeyhill area of Edinburgh.  It was used to connect the East Coast Main Line towards Abbeyhill railway station.  Passenger services stopped using this line in the 1960s but briefly reopened in 1986 as a shuttle service was set up from Waverley station and Meadowbank Stadium railway station for the Commonwealth Games.  Abbeyhill Junction signal box closed on 6 November 1938, when an old box at Waverley East took over control of the junction.

Perth Stadium: Perth Stadium is a multi-purpose stadium under construction in Perth, Western Australia, located in the suburb of Burswood.  On its completion, it will have a capacity of 60,000 people, making it the third-largest stadium in Australia (after the Melbourne Cricket Ground and Stadium Australia).

Perth marshalling yard: Perth marshalling yard (also known as Perth Yard) was a railway marshalling yard to the immediate west of Perth railway station in Perth, Western Australia and east of West Perth railway station.

Stadium railway station, Perth: Stadium railway station is a station being constructed on the Armadale/Thornlie line in Perth, Western Australia.  It is scheduled to open in 2017 to serve the new Perth Stadium.

Croke Park railway station: Croke Park railway station is a proposed railway station intended to serve Croke Park stadium and the planned new National Children's Hospital at the Mater in Dublin.  In 2007, Córas Iompair Éireann began examining the feasibility of building a new station to serve the hospital at Dorset Street, near the stadium.  In August 2008, an announcement was made that Iarnród Éireann had entered discussions with the GAA, the owners of the stadium, with a view to them contributing to the cost of building the new station.  As of 2017, the nearest station to Croke Park is Drumcondra ; the two branches of the Western Commuter line run directly behind the Hill 16 terrace and the Canal End.

Wembley Stadium railway station: Wembley Stadium railway station is a Network Rail station in Wembley Park, Wembley, Greater London on the Chiltern Main Line.  At a quarter of a mile (400m) south west of the sports venue it is the nearest station to Wembley Stadium.

Supporting paragraphs: Stadium railway station, Perth Perth Stadium
Answer: 60,000