The 2020 Winter Youth Olympic Games (YOG) will aim to leave a positive legacy for the city of Lausanne, the canton of Vaud and Swiss sport generally.

One of the key highlights of Lausanne 2020's heritage is the accelerated construction of the student accommodation Vortex, which will house the Youth Olympic Village during the Winter YOG. 

This building will subsequently accommodate 1,200 university students and academic guests, meeting a long-time community need.

You can follow the development of the Vortex live by viewing the construction site webcam here.

Another construction project that will become a reality thanks to the Winter YOG is the Centre Sportif de Malley SA, which encompasses several sports facilities, one of which is a 9,700-capacity ice rink that will be accessible to young athletes. 

This project solves the problem of a genuine lack of sports infrastructure in the French-speaking part of Switzerland.

You can follow the development of the Centre Sportif de Malley SA live, or watch a sped-up version of all the construction work so far, by viewing the construction site webcams here.

Besides these two major construction schemes, Lausanne 2020 will support the following projects:

- The creation of training centres for the future athletes from the French-speaking part of Switzerland

- An agreement with the French Department of Jura for the free use of sports facilities for 20 years

- Support for creating a new regional discipline - short track

- Local training on the sports management of major events

- Development of a new generation of sports managers

- Tangible projects underway to promote winter sports for everyone

Lausanne 2020's educational legacy will be a combination of several elements. 

Firstly, there are the strong partnerships with the University of Lausanne, the Swiss Federal Institute of Technology Lausanne and the Swiss Hotel Management School in Lausanne. 

Secondly is the identification and development of local young people's existing skills. 

And thirdly is the creation of new expertise within the current population. 

To make this happen, an opportunity has been given to young people to involve themselves and take on organisational responsibilities in the Winter YOG.

These learned skills will then be available for organising future international sports events that will continue to grow sustainably within the region.

It is hoped this legacy will even reach future generations, thanks to the connections established with children in local schools.

"Engaging in a project of this scale for just two weeks in 2020 is not the only goal we're hoping to achieve," Olivier Delapierre, the Local Organising Committee's head of public relations and engagement, said.

"You can see that with the new ice rink in Malley, Lausanne, and the Olympic Village, a large circular building called the 'Vortex', whose primary function is to provide a facility for our city's students, a function that we have promoted.

"The athletes competing at the YOG will be the first to use it.

"There are legacies in terms of youth, the development of expertise, and the creation of synergies between the various institutions…[as well as] strong sporting legacies in terms of skills and the renovation of infrastructure in the Vaud Alps and the French Jura.

"There's a cross-border agreement between the French department of Jura and Switzerland's Nordic teams, who for the next 20 years can use the refurbished facilities in Prémanon, including the Stade des Tuffes, a world-class ski jumping, cross-country skiing and biathlon venue. 

"Lausanne's revamped ice rink will be the home of the Lausanne Hockey Club, which plays in the Swiss top flight and will now have the opportunity to develop and progress. 

"It will also host the 2020 World Championships.  

"The YOG have helped bring the ice rink's renovation along more quickly."

There are many other examples of this drive for a strong legacy, including Les Diablerets, where the Alpine skiing events will be held.

Thanks to the Winter YOG, the refurbishment of the ski lifts has been sped up and the mountain will be open all year round. 

An old-fashioned chairlift has been replaced by cabins, and the slalom, giant and super-G piste has been approved by the International Ski Federation and can now host international competitions.

The ski and snowboard facilities in Leysin have also been upgraded, putting the Vaud Alps resort back on the world freestyle map, and the speed skating events will be held outdoors, on an oval situated on a frozen lake in St Moritz. 

"We're going back to the roots of the sport, and that opens up opportunities," Delapierre added.