Stadium Bowl Design

Seating Arrangement

Stadium Image

It might appear plausible that the seating arrangement ought to be specifically related to the shape of the playing surface thus forming a rectangle.

In fact, an arena layout in the past followed this reasoning. Bur, this made viewing limitations for anyone sitting at either end of the stadium, especially those next to the goals. Due to the fact that the seats faced directly in front, fans were continually looking side to sides so as to see the plays.

Hypothetically, the best arrangement for a football arena is a rounded bowl which is as near as it can be to the ground of the football field, giving all fans an equivalent excellent, clear, view along the entire length of the football field.

Even though the bowl appearance from the air and from the center of the stadium will appear straight, it is in fact a little curved. This curve identifies what is called the “C-value”, that relates to each seating having an excellent view. Wanting to obtain the optimum distance to the football field to have the ideal C-value plus the steepest angle requires that different sport functions have various bowl designs.

As the maximum number of spectators an arena can accommodate grows, exact quantitative measurements for the design of the bowl are required. Architects for that reason want to have an equilibrium between the bowl viewing layout and the field to provide the best contour and the best possible sightlines.

Excellent Field of Vision

sightline
An example of a patron’s sightline

A vital feature of an arena design will be to make sure everyone of the seats offer an outstanding view of the whole field. For that reason attention should be brought to optimize the sightlines of all the seats.

The main goal should be to decrease the distance between the fans and the playing field to make sure the view is not impeded.

For all of the important games, international regulations specify that those seats that are at a range greater than 190m, or seats with restricted sightlines, are omitted from the computation of the maximum number of fans an arena can hold.

Range of Sight

A fantastic view obviously is determined by the distance the seat is from the players. A restricted bowl design attempts to also take the most remote seating as near as you can to the playing field, improving the great view and assisting to produce a “magical” effect. The goal is to have the seating inside the optimum distances laid out by international official regulatory associations.

Outstanding Sightlines: The C-Value

The C-value is actually a factor which specifies the calibre of the viewers line of sight above the head of the individual in front, often called “the sightline”.

In theory, the greater the C-value, the better the sightline, which means a better view of the playing field. A great stadium layout has a very good C-value all over the bowl. Interestingly, raising the C-value can even lead to a rise in the entire length and breadth of the arena. The common method for determining the sightline is described below:

C = D (N + R) / (D + T) – R

C = the C-value
D = a line drawn horizontally from each spectator’s location to the playing field
R = the height from the spectator’s eye level to the playing field
N = the riser height for each row of seating
T = the depth for each row of seating

To create a great C-value, the area from one’s eye level to the top of the head from the fan in front ought to be around 120mm (best) and 90mm (satisfactory).

It is vital that the project be done by architects that are acquainted with the C-value formula and who have learned to maximize sightlines.

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Sightline Calculation Example – Courtesy of www.starenaaust.com

Clear Views

The entire field must be visible to all viewers of the game. On the other hand, adhering to legal regulations regarding handrails in addition to fixtures indicate that some obstacles are in one’s line of vision sometimes creating a partly blocked view.

Architectural features like a roof covering, posts, ads and scoreboards may obstruct the sightlines for a certain amount of seats. These seats are not included in the capacity of a stadium.

In conclusion, a great view is accomplished by making sure that every seat has a good line of sight, is near as it can be to the playing field and has nothing to block the view of the game.

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