Introduction

The sports field lighting layout involves far more than the mere installation of fixtures; it directly impacts the quality of sporting events, the effectiveness of television broadcasts, and the visual comfort of athletes. Common sports field lighting layout configurations include the four-corner high tower arrangement, roof rim mounting, mixed systems, and independent pole arrangements in two sides. The choice of layout directly dictates the selection of fixture models, light distribution curves (What’s light distribution?), and ancillary accessories, serving as the fundamental premise for the entire lighting design process. Sports field lighting layouts vary significantly depending on the specific type of sports venue—ranging from soccer field lighting layout, tennis court lighting layout to baseball field lighting layout, and finally softball field lighting layout. Using soccer stadiums as a case study, this article highlights several typical lighting layouts and analyzes how these different configurations influence key optical metrics, such as uniformity, vertical illuminance, and glare control. Let us now delve into the main text to provide you with an in-depth understanding of these essential design principles.

Different sports field lighting layout

Four-corners high tower soccer field lighting layout

The four-corner tower layout is the most widely adopted configuration among established, large-scale sports stadiums—particularly those serving as multi-purpose venues for both track and field events and football. The implementation is straightforward: a tall tower—typically ranging from 30 to 50 meters in height—is erected at each of the stadium’s four corners, with high mast lights (ZGSM high mast lights) concentrated at the tower summits or mounted on specialized fixtures along the towers. This approach offers several advantages: the lighting is projected diagonally into the field from four distinct directions, ensuring extensive coverage. Furthermore, since the light fixtures are positioned at a distance from both the spectators and the athletes, and are utilized in conjunction with specialized photometric distribution curves (asymmetrical light distribution) designed for sports venues, issues regarding glare on the field can be effectively mitigated. Additionally, routine maintenance is facilitated, as there is no need for personnel to perform high-altitude work across the entire expanse of the stadium. However, the drawbacks are equally apparent: since the primary light source originates from the corners, areas such as the goal zones and midfield—which have higher illumination requirements—demand precise aiming of each individual fixture; failure to do so can easily result in the formation of shadows or insufficient illuminance levels. Overall, this layout successfully meets the rigorous lighting quality standards required for high-definition television broadcasting, making it a reliable and common choice for hosting major international sports competitions. A typical example of this design can be seen in the sports stadium in Gannan, as illustrated in the figure below.

Independent soccer field lighting layout

The independent sports field light layout in two sides is commonly employed in sports venues with limited budgets and modest lighting requirements—such as school playgrounds, community courts, and training facilities. The construction process is relatively straightforward: multiple independent poles are erected along the outer edges of the court’s two sidelines, typically numbering four, six, or eight, with pole heights generally ranging from 10 to 20 meters. The traditional approach involves mounting a fan-shaped fixture bracket atop each pole, to which multiple floodlights are directly attached. This solution offers low costs and rapid installation; it requires no reliance on grandstands or overhead canopies, and the arrangement of fixtures does not demand excessive precision. ZGSM’s current standard practice involves further optimizing the projection angles (aiming points and what’s aiming points of flood lights) of the fixtures—combining professional lighting design with custom-engineered mounting brackets—to ensure the venue’s illuminance levels meet regulatory standards. However, this layout does have distinct limitations: the pole heights are restricted, the number of fixtures is limited, and the overall uniformity of illumination is inferior to that of other layouts, often accompanied by a certain degree of glare. Consequently, it typically suffices only for daily training, amateur competitions, and recreational fitness activities. Nevertheless, once optimized, this solution proves entirely adequate for the majority of school and community courts (with both uniformity and glare issues significantly improved); moreover, it offers excellent overall cost-effectiveness—being practical, hassle-free, and convenient for long-term maintenance.

Roof rim sports field lighting layout

Roof rim sports field lighting layout (bilateral light strip layout) is a sports lighting configuration currently favored by many professional football stadiums. In this layout, sports lights are typically mounted beneath the roof structure or large overhangs—specifically, along the front edge of the grandstand canopy or on maintenance catwalks. The primary advantage of this approach is that it eliminates the need to erect additional high-mast towers solely for lighting purposes; furthermore, because the fixtures are relatively dispersed, every corner of the pitch can be effectively illuminated. Moreover, matches held in such stadiums are frequently televised; since broadcast cameras are typically positioned along the sidelines or behind the goal lines, the light radiating from the surrounding perimeter illuminates the athletes’ faces and bodies with exceptional clarity, resulting in visuals that appear more three-dimensional. It is important to note that when a stadium’s illumination is provided by a single row of linear fixtures encircling the roofline, these fixtures must be positioned at a sufficient lateral distance from the edge of the pitch to ensure that the required levels of vertical illuminance (What’s vertical illuminance?) and uniformity are achieved.

Mixed sports field lighting layout

Another layout configuration for sports field lighting is the hybrid arrangement, which typically combines light towers (or poles) with a roof-rim mounting system. Professional stadiums frequently utilize a combination of four corner towers and roof-rim fixtures to deliver superior illumination. In certain scenarios—specifically when one side of the stadium perimeter features light poles while the other is occupied by buildings or grandstands—lighting fixtures are installed along the roof rim of the grandstands on one side and mounted on the poles on the opposite side. The primary rationale for this approach is either cost savings or the unsuitability of the opposing side for the installation of light towers. This specific hybrid layout is well-suited for professional stadiums; a notable example is the Eintracht Stadium in Braunschweig. During the renovation of such older stadiums, where the existing roof structure may lack the load-bearing capacity to support a large number of fixtures, supplementary light towers are erected at the four corners to help meet the required illumination levels. Consequently, a completely new lighting design is implemented, featuring the erection of iconic floodlight towers. Of course, due to constraints such as budget limitations or site-specific conditions, a lighting scheme utilizing a roof rim arrangement on one side and pole-mounted fixtures on the other may also be adopted.

The impact of different lighting layouts on lighting performance

Here is lighting results base on four sports field lighting layouts. Please take a moment to briefly review the comparative results; below, we will analyze—one by one—the differences among these four layouts, as well as the potential reasons behind them, focusing on uniformity, vertical illuminance, glare, cost, and other photometric parameters.

Lighting layout	4 high towers	6 independent poles	Roof rim arrangement	Mixed lighting layout
Eh ave	1588	646	2008	1805
U1	0.76	0.61	0.64	0.63
U2	0.83	0.77	0.85	0.83
GRmax	46	48	48	39
Ev ave	About 1200lux	550lux	About 1300lux	About 1300lux
Ev U2	0.5	0.3	0.6	0.6

Lighting uniformity difference caused by sports field lighting layouts

The table data clearly shows the differences in illuminance uniformity among the four layouts: the four-corner high tower (4 high poles) layout exhibits the best overall uniformity (What's light uniformity?), with a U1 value of 0.76 and a U2 value of 0.83, both significantly better than the six-pole independent pole layout (U1: 0.61, U2: 0.77), as well as the Roof rim arrangement (U1: 0.64, U2: 0.85) and the mixed lighting layout (U1: 0.63, U2: 0.83). The four-corner high tower layout uses diagonal long-distance projection to allow light to fully overlap within the field, effectively reducing brightness variations and achieving excellent uniformity across the entire sports field. Due to limited pole height and the need to manage glare, the 6-pole layout has restricted light throw angles, resulting in the lowest uniformity among the four configurations. While uniformity can be improved by adding more fixtures, glare reduction is not significant (high tilt angle), making this layout generally suitable only for non-professional training scenarios. The U2 value (0.85) of the roof rim sports field lighting layout is slightly higher than that of the four-corner high tower lighting layout, and its overall uniformity is excellent. However, to meet the vertical illuminance requirements for television broadcasts, its U1 value is not high, which requires special attention. The U1 and U2 values of the hybrid layout are similar to those of the roof rim lighting layout, with average uniformity. At the same time, its GRmax (39) is significantly lower than that of the other three layouts. It achieves excellent glare control while ensuring uniformity, balancing lighting performance with visual comfort.

Vertical illuminance difference caused by sports field lighting layouts

Vertical illuminance refers to the intensity of light received on a plane perpendicular to the ground; its unit of measurement is also the lux. As a core metric in stadium lighting, the images captured by broadcast cameras essentially represent the visual rendering of players on a vertical plane. The magnitude of vertical illuminance—along with its uniformity—determines the clarity and three-dimensional depth of the players as they appear in the broadcast footage. As illustrated in the chart, a stadium utilizing a six-pole lighting layout exhibits the lowest levels of vertical illuminance. While these levels can certainly be improved by increasing the number of luminaires, the uniformity of the vertical illuminance remains difficult to enhance—particularly in scenarios where the light poles are positioned inside the end lines. Sports field employing a "four high poles" lighting layout demonstrate significant improvements in both vertical illuminance and uniformity; however, the uniformity of the vertical illuminance is still not entirely ideal. In such cases, the lighting simulation typically requires optimization, necessitating repeated adjustments to the aiming points of the luminaires on the four high poles to achieve the desired level of uniformity. Conversely, sports field utilizing a "roof rim sports field lighting layout" find it easier to meet the requirements set forth by standards such as those from FIFA, UEFA, and RP-6-15 (What's RP-6-15 sports lighting standard?). The primary reason for this is that this configuration is better suited for luminaires featuring an asymmetrical light distribution.

Glare difference caused by sports field lighting layouts

ZGSM has compiled statistical data from lighting simulations involving four distinct sports field lighting layouts; the tabulated results reveal significant differences among these four lighting layouts regarding glare control. The mixed lighting layout exhibits a maximum glare rating (GRmax) of just 39—a figure significantly lower than that of the other three configurations. This superior performance is primarily attributable to its specific design approach: the floodlights positioned along the roof rim utilize an asymmetric light distribution pattern (What's asymmetic light distribution?), while those mounted on the high poles feature a narrow beam angle design, thereby achieving exceptional glare suppression. The four-corner high tower lighting layout records a GRmax of 46, demonstrating relatively good glare performance; however, the level of glare can be further reduced by equipping the fixtures with shields or using part of asymmetrical light distribution flood light. Both the roof rim arrangement and the six independent pole layout register a GRmax of 48 - the highest rating among the four lighting layouts. Notably, the six pole layout is particularly prone to generating glare due to the limited height of its poles and the consequently excessive tilt angles required for the light fixtures. In the roof rim sports field lighting layout, relying solely on asymmetric light distribution is insufficient to meet the required standards for illuminance uniformity; consequently, it becomes necessary to incorporate a certain number of stadium lights featuring symmetric light distribution, which inevitably results in higher glare values. For further information on how to mitigate glare, please refer to our blog post: "Reduce glare – UGR, GR and Ti in lighting design."

Price difference caused by sports field lighting layouts

Based solely on the cost of the lighting fixtures themselves, Corners Lighting incurs the highest expense; under identical illuminance requirements, a larger portion of the light emitted by these fixtures tends to spill into non-target areas (What's light spill?). The roof rim arrangement ranks second in terms of cost; although the fixtures are positioned relatively close to the playing field, a comparatively larger number of units are required to satisfy the necessary vertical illuminance standards. The costs associated with the other two lighting layouts are roughly equivalent and fall within the lower range. Regarding the cost of the light poles, significant variations exist among the different perimeter arrangements. In ascending order of cost, the independent 6 pole lighting layout is the most economical option, characterized by simple pole structures and relatively straightforward construction procedures. The four-corner tower lighting layout entails the highest pole costs, presenting significant challenges in foundation construction—though the actual fixture placement process is relatively simple. The roof rim arrangement, while requiring no light poles, imposes stringent structural demands on the building's roof rim and presents complexities regarding both fixture placement and electrical wiring installation. In the case of a mixed sports lighting layout—specifically one that combines both light towers and catwalks—the overall cost is the highest; however, if one side of the layout utilizes the stadium's existing grandstand canopy for mounting purposes, the cost is relatively lower, as it necessitates an expenditure for only half the number of light poles.

CRI，TLCI，Flicker factor, is there any difference?

The CRI (Color Rendering Index) indicates a light source's ability to accurately reproduce the true colors of objects; the higher the value, the more natural the color rendering appears. The TLCI (Television Lighting Consistency Index) is particularly relevant for HD broadcasting and professional cinematography, as it directly impacts color accuracy as captured through a camera lens, making it a critical metric for sports venue lighting. The Flicker Factor, meanwhile, quantifies the degree of light flicker produced by a source; a lower value minimizes the likelihood of visual artifacts—such as horizontal banding or flickering—appearing during slow-motion playback and live television broadcasts. Together, these three metrics determine the actual visual quality of the sports lighting as well as its suitability for broadcasting purposes. It is worth noting that while the sports field lighting layout has no impact on these three parameters, their performance fundamentally depends on the quality of the light fixtures' LED chips and the performance of their LED drivers. High-quality LED chips can enhance CRI and TLCI performance—often through methods such as optimizing phosphor formulations—though this typically entails a certain trade-off in terms of luminous efficacy. For more details, please check our blog posts: " CRI vs luminous efficacy " and " Why TLCI is important in sports lighting?" The Flicker Factor, conversely, is primarily determined by the quality of the LED drivers; the more stable and reliable the driver performance, the lower the flicker percentage, thereby significantly reducing the probability of visual flickering or banding artifacts appearing during television broadcasts and professional filming.

ZGSM LED sports lighting solutions

Summary

This article presents a comprehensive analysis of sports field lighting layouts. It begins by establishing that lighting layout is a critical design element determining the quality of sporting events, broadcast effectiveness, and athletes' visual comfort. Subsequently, it details four mainstream lighting arrangement schemes—four-corner high masts, independent light poles, roof rim lighting layout, and mixed lighting layout—outlining the structural characteristics, applicable scenarios, and respective advantages and disadvantages of each. Building upon this foundation, the article utilizes empirical data to comparatively analyze the impact of these different sports field lighting layouts on key lighting parameters: the four-corner high-mast lighting layout demonstrates the best overall illuminance uniformity; the independent light pole lighting layout exhibits the poorest uniformity (How to improve light uniformity in sports lighting?) and vertical illuminance; the roof rim sports field lighting layout is most adept at meeting professional broadcasting standards regarding vertical illuminance and uniformity; and the mixed lighting layout performs best in terms of glare control. Concurrently, the four towers lighting layout differ significantly in construction costs, with the independent light pole layout incurring the lowest cost and the mixed lighting layout requiring the highest overall investment. Furthermore, the article notes that key metrics such as CRI, TLCI, and flicker factor (What's flicker factor?) are primarily determined by the inherent quality of the lighting fixtures themselves and are not influenced by the sports field lighting layout. Overall, the judicious selection of a lighting layout allows for a balanced optimization of core metrics—including uniformity, vertical illuminance, glare control, and cost—thereby providing a practical reference for the lighting design and solution selection for football fields and various other sports venues. If you require lighting solutions for a sports venue, please feel free to contact ZGSM for further information regarding lighting layouts, fixture selection, lens options, and related topics.

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