Freestyle Olympic Stadium Design part 2

From Fiswiki

Jump to: navigation, search

5.0 RELATIONSHIP BETWEEN THE TWO COURSES


TABLE OF DISTANCE AND ANGLES OF RECENT FRESTYLE STADIUMS


 

Freestyle Stadium

02 OWG
Deer Valley, USA
05 WSC
Ruka FIN
 
06 OWG Sauze D’Oulx ITA
Distance between AE & MO finish / center lines:
57 meters
34 meters
53 meters
Angle between AE & MO center lines:
45 degree
34 degree
33 degree
Set back of Stand from the MO finish line:
81 meters
50 meters*
60 meters
Angle of the spectator stand to the MO finish line:
5 degrees
0 degrees
29 degrees
Angle of the R2 Curve (landing hill / finish area) to spectator stand:
50 degrees
29 degrees
9 degrees
Distance from the end of aerials finish area to center of spectator stand:
27 meters
30 meters*
18 meters
Distance from the end of the Aerial landing R2  to the Spectator Stand
55 meters
40 meters*
28 meters
Mogul finish line to bottom center of spectator stand:
81 meters
30 meters*
60 meters
End of Mogul Finish Area to Spectator Stand
40 meters
15 meters*
28 meters

 

* There was no spectator stand in Ruka, but the site was in a natural bowl, so the slope behind the courses created a natural viewing stage and platform.

 

5.1 Analysis

Sauze D’Olux had the ‘better feeling’ of all three of the venues. Everyone felt very close to the action, and this brought a special atmosphere for the athletes and the spectators.

 

The standing spectators faired much better in Deer Valley, than Sauze D’Oulx. If the position of the Spectator Stand was at right angles to the Moguls course, this would have allowed more spectators.

 

In Deer Valley, the stand was quite far away from the action and some of the space was not used very well. The stadium was also used for the Olympic Slalom, which entered between the mogul and aerial courses.

 

5.2 Implications / Design Features

 

  • There needs to be an angle between the mogul courses – like a ‘V’. If not, then the aerial landing hill (skiers left side) will block the view of the lower part of the mogul course.

 

  • For Cypress, the center line of the mogul course is in a good position, but the aerial site needs to be moved off at an angle to the mogul course by maybe 20 to 30 degrees. (more distance between the courses at the top of the AE inrun)

 

  • I would look at adding some more space (5 meters) between the center lines of each course. The skiers left side of the aerial hill and right side of the mogul course is perhaps unusable space and a machine cannot move around in here.

 

  • From the weather proofing aspect, the cross winds coming on to the landing hill need to be avoided, therefore the landing hill needs to be pushed back into the slope to create more coverage for the landing hill and table. (see more detailed remarks in the aerial section and weather proofing)

 

  • Regarding the position of the spectator stand, this should be used to also block the wind, so it should come around to the side (towards the hill) to block the wind.

 

 

6.0 WEATHER PROOFING

 

Some real considerations need to be taken in regard to the wind and the position and location of the aerial site.

 

6.1 Trees as wind blocks

Setting of the aerial site close to the trees. These trees will as act as a wind block.

 

Please keep as a many trees as possible and as close to the skiers right side of the aerial course. This will also add in great visibility of for the site in case of snow and fog.

 

6.2 Moving The R2 Back Into The Slope

Moving the R2 (landing hill to finish area) back into the hill some meters would also create more of a natural wind block.

 

6.3 Spectator Stands as Wind Blocks

The Spectator Stand, as least for the Games time, should be used as a wind block to the aerial landing hill and the finish area.

 

 

7.0 AERIAL SITE REMARKS


Specification Revision 4 Revision 5 FIS Requirements
Inrun Length: 85m (@ 26º) 89m @ 24.5º Table up-1st 30m @ 25º, rest @ 26º
Inrun Width 26m 26m 26m
Landing Hill: 30m @ 37º 30m @ 37º 30m @ 38º
Table Length: 25m 25m 25m @ 0º
Finish Area: 30 m 30m 30m

 

 

7.1 Inrun

The inrun above the R1 (inrun to table) needs to be 25º for 30 meters, then it can be 26º for the next 50 meters.

 

 

7.2 Landing Hill

Make the landing hill 38º degrees verses the 37º degrees shown now in the revision # 5.

 

 

7.3 Center Line / Landing as visual block

The Center Line of the Aerial Course needs to be shifted some 20º to 30º from it present position at 90º / square to the parking lot or as it is shown now on revision 5, more of less parallel to the mogul center line.

 

If this not done, then the landing hill will block the view of the mogul course from the ‘lookers left’ of the spectator stand.

 

7.4 R1 Inrun to Table

Eventually this area needs to be filled in to make the transition smoother than having just a 25 degree angle.

 

This should be done after the initial major work is finished.  We can then find the best fit and make this final modification and improvement on the course.

 

 

8.0 MOGUL SITE REMARKS


Specification Revision 4 Revision 5 FIS Requirements
Length: 252m 252m 252m
Average Grade 26.5º 26.5º 27.5º to 28.5º
Course Width: 23m 23m 23m
Venue Width: 37m 37m 37m
Top Section 98m @ 28.7º 98m @ 28.7º 98m @ 28.7º
Bottom Section 152m @ 25º 152m @ 25º 152m @ 27º
Finish Area: 30m 30m 30m @ 0º

 

8.1 Angle Of Course

In your bid book, page 5 ‘Freestyle Skiing Technical Plans’, you indicate, ‘a 27º slope’ for the mogul course.  The slope needs to be challenging and slopes below 27º, do not offer a significant challenge to the skiers skills.

 

8.2 Air Bumps

Regarding the placement of the air bumps, on a permanent basis, we should wait until we have used the hill once for a competition. After this, we can determine the best location on the hill.

 

They will be located from around 50m to 70m from the top and some 50m to 70m from the bottom.

 

8.3 Access to Both Sides at the start

On your plans Revision 4 & 5, you show only access to the start area from one side (skiers left). Access needs to be from both sides in order to make the site more functional. I see the so-called ‘Old Growth Forest’ on the skiers right, and perhaps this access can go above and behind the start and turn down hill to come to the start.

 

9.0 SPECTATOR STANDS

Where and how big the spectator stands will be, but we prefer to have them closer to the finish areas. They can also block the wind.  It is stated that for moguls and aerials the venue capacity would be 12,000; 8,000 seated and 4,000 standing.

 

 

TABLE OF FACTS AND FIGURE OF THE PAST TWO STADIUMS


 

Freestyle Stadium

02 OWG
Deer Valley, USA
06 OWG Sauze D’Oulx ITA
Depth of Spectator stand
44 meters
32 meters
Length of Spectator stand:
100 meters
86 meters
Diagonal width of stand:
108 meters
53 meters
Video wall to left lower corner of spectator stand:
64 meters
67 meters
Angle of Video wall to Spectator Stand
45º
40º
Angle of Video wall to Mogul Finish Line
10º
120º
Angle of Video wall to Aerial R2 Line
85º
135º
Seating Capacity
10,000
5,600
Venue Capacity
13,400
8,460
Tickets Sold
67,000
41,102
Percentage of Tickets Sold
100%
95%
Number of Competition Days
5
6

 

 

10 LIGHTING

Any lighting poles need to be beyond the field of play. The lighting poles cannot create a visual block between the spectators and the course.

 

You will need to light the full skiing access / ingress and exit / egress from the freestyle stadium to and from the ski lifts. Therefore, lighting will be needed on those ski runs and the lift towers according to industries standards for skiing.

 

The Sauze D’Olux Freestyle competitions were the first ever HD (High Definition) TV Production of a Winter Olympic outdoor event. I would expect this will continue to be the norm in 2010.

 

The requirements for illumination of the field of play are significant and higher than for a normal TV broadcast.

 

In a final analysis on Sauze D’Oulx, there was too much light production capacity and at times 30% to 40% of the lights were turned off.

 

 

11. TV POSITIONS

There are anywhere from 20 to 25 TV positions on each freestyle site.

 

Usually, this has to deal with the position of the sun, but since the finals of these competitions will occur at night, this might not be a factor.

 

Given the design, we would prefer that the TV positions be outer side of both courses. This would prevent the TV instillations creating a visual block of the course, like the tower for the mogul cable cam did in Sauze D’Oulx.

 

 

TABLE OF NUMBER OF TV CAMERAS 1994 - 2006


 

Freestyle Stadium

94 OWG
Kanthagen, NOR
98 OWG
Iizuna Kogen, JPN
02 OWG
Deer Valley, USA
06 OWG Sauze D’Oulx ITA
# of Cameras AE
19
23
22
24
# of Camera MO
17
22
24
23
TV Positions of side of Mogul Course
Skiers Left
Skiers Right
Skiers Right
Skiers Left
TV Positions of side of Aerial Course
Skiers Left
Skiers Right
Judges side
Skiers Left
Skier Right
Judges side
Cable Camera MO
Yes
Yes
Yes
Yes
Boom Camera Aerials
Yes
Yes
Yes
Yes

 

 

12. SKI LIFT


The faster the lift the better, the newer the lift, the better. If they are just using your money to replace another lift and use an old lift to access the freestyle site, I would then prefer a simple surface lift which just accesses the top of the mogul course.

 

 

 

13 SNOW MAKING

Any ski run that services the top or bottom of the mogul course will need to have snowmaking installed on that run.

 

 

14 JUDGES STAND

We would need to see the designs for these two permanent stands once they have been developed.

 

For Aerials, the stand needs to be on the skiers right, as you have shown in your plans.

 

Presently the aerial stand is parallel to the center line of the Aerial hill. We have found that if the aerial stand is offset by a few degrees (5º), towards the landing hill, this will improve the line of site and vision of the judges.

 

In Sauze D’Oulx, we had a significant amount of TV cameras and lights affixed to the aerial judges’ stand. In Deer Valley, the TV was on the opposite side of the aerial site.

 

This judges stand also needs to be used as a place where the athletes can get out of the weather.

 

 

15 VIDEO WALL / SCORE BOARD

The Video and Score Board location needs to be closer to the skiers right side of the mogul course.

 

Further to this note above, I would wait until the site is more or less finished before you determine the location of and the angle of the score board and video wall.

 

VIDEO WALL RELATIONSHIPS TO COURSE EXITS AND SPECTATOR STANDS


 

Freestyle Stadium

02 OWG
Deer Valley, USA
06 OWG Sauze D’Oulx ITA
Distance of the Video wall to mogul exit gate:
57 meters
42 meters
Distance of the Video wall to aerial exit gate:
70 meters
52 meters
Video wall to right side lower corner of spectator stand:
128 meters
92 meters
Video wall to left lower corner of spectator stand:
64 meters
67 meters
Angle of Video wall to Spectator Stand
45º
40º
Angle of Video wall to Mogul Finish Line
10º
120º
Angle of Video wall to Aerial R2 Line
85º
135º

 

 Appendix 1 – Sauze D’Oulx ITA

 

 

TABLE OF MESUREMENTS OF DIFFERENT ASPECTS OF THE STADIUM


Size of Spectator stand: 32m long x 82m wide
Diagonal width of spectator stand: 86 meters
Distance from center line at finish area mogul to aerials: 53 meters
Distance from center line at end of the finish area mogul to aerials: 36 meters
Angle between center of moguls and aerials: 33 degrees
Width from outside Aerial fence to outside Mogul fence: 87 meters
Eastern top corner of spectator stand to start of Moguls: 278 meters
East bottom corner of spectator stand to start of Moguls: 246 meters
Western top corner of spectator stand to start of Moguls: 307 meters
Western bottom corner of spectator stand to top of moguls 278 meters
Mogul finish line to bottom center of spectator stand: 60 meters
End of mogul finish area to center of spectator stand: 28 meters
Distance from the end of aerials finish area to center of spectator stand: 18 meters
Aerial Knoll to bottom western corner of Spectator stand: 71 meters
Aerial Knoll to top western corner of Spectator stand: 115 meters
Aerial top of inrun to top western corner of Spectator stand: 265 meters
Aerial Knoll to bottom eastern corner of Spectator stand: 134 meters
Aerial top of inrun to top eastern corner of Spectator stand: 205 meters
Video wall to mogul exit gate: 42 meters
Video wall to aerial exit gate: 52 meters
Video wall to Eastern lower corner of spectator stand: 67 meters
Video wall to Western lower corner of spectator stand: 92 meters
Video wall to Western top corner of spectator stand: 107 meters
Video Wall to Eastern top spectator stand: 99 meters
Video Wall to Western bottom spectator stand: 92 meters
Video Wall to Western side of Aerial course finish fence: 90 meters
Angle of Video Wall to Spectator stand: 40 degrees
Angle of Video Wall to mogul finish line: 10 degrees
Angle of Video Wall to Aerial Knoll: 45 degrees
Angle from the Top western corner of Spectator stand to video wall: 40 degrees
Angle from the bottom Western corner of Spectator stand to video wall: 30 degrees
Angle from the bottom Eastern corner of Spectator stand to video wall: 5 degrees
Top of aerial course to center line of moguls (parallel) : 130 meters
Top of aerial course to center line of moguls (straight line) : 182 meters
Top of aerials skiers left mogul fence: 90 meters

 

Appendix 2 - Deer Valley Freestyle Stadium

 

 

TABLE OF MESUREMENTS OF DIFFERENT ASPECTS OF THE STADIUM


Angle between center of moguls and aerials: 45 degrees
Size of Spectator stand: 44 m long x 100 m wide
Diagonal width of spectator stand 108
Angle of Spectator Stand to Video Wall 45 degrees
Distance from the Mogul Finish line to the Spectator Stand 81 meters
Distance from the end of the Mogul Finish area to the Spectator Stand 45 meters
Distance from the end of the Aerial Finish area to the Spectator Stand 27 meters
Angle of Aerial Knoll to Video Wall 80 degrees
Front left bottom corner of spectator stand to Video Wall 64 meters
Front right bottom corner of spectator stand to Video Wall 128 meters
Top right corner of spectator stand to Video Wall 156 meters
Top left corner of spectator stand to Video Wall 108 meters
Angle of Spectator stand to mogul finish line 5 degrees
Angle of Spectator stand to Aerial Knoll Line 50 degrees
Finish line Moguls to front of Spectator Stand 80 meters
End of R2 aerials to front of Spectator stand 55 meters
Front right bottom corner of spectator stand to start of Moguls 334 meters
Front left bottom corner of spectator stand to start of aerials 210 meters
Front right bottom corner of spectator stand to start of aerials 155 meters
Front left bottom corner of spectator stand to knoll of aerials 115 meters
Front right bottom corner of spectator stand to knoll of aerials 46 meters
Top of Aerials to top of moguls 215 meters
Mogul exit gate to Video Wall 57 meters
Aerial Exit Gate to Video Wall 70 meters

 

 

Appendix 3 - Ruka FINLAND

 

 

TABLE OF MESUREMENTS OF DIFFERENT ASPECTS OF THE STADIUM


Angle between center of Moguls and Aerials: 34 degrees
Distance that end aerial landing is set back from moguls finish 5 meters
Distance from the outside fence moguls to top of AE inrun 90 meters
Distance from the inside fence moguls to the top of AE Inrun 65 meters
Distance from the outside fence moguls to knoll on AE 42 meters
Distance between the finish / centerlines of the Mogul and Aerial Site 34 meters



Return to Freestyle Skiing Olympic Stadium Design, Freestyle Skiing or Olympic Winter Games - Freestyle Skiing

Personal tools