The Airport Chill: Why So Cold?

why is the airport so cold

Many travellers have complained about the cold temperatures in airports. While some airports are hotter than the external temperature due to the press of people and equipment, others are so cold that people have had to wrap themselves in blankets to keep warm. There are several reasons why airports are kept cool. One reason could be to prevent the spread of fire, as fire does not spread as quickly in cooler environments. Another reason could be that people tend to dress for cooler temperatures on planes, so airports maintain a similar temperature to avoid discomfort.

Characteristics Values
Temperature 20/21°C or 68-70°F
Reasons Fire safety, passenger comfort, and personal preference
Perception May feel colder due to external temperatures or lower passenger numbers

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Fire safety: fires spread slower in cooler environments

While some people may perceive the temperature in airports to be cold, the indoor air temperature typically falls between 20°C and 21°C (68°F to 70°F). This temperature range is chosen to accommodate the varying preferences of travellers, many of whom may be dressed for cooler temperatures, having arrived from places with cooler climates.

Maintaining a moderate temperature inside the airport also serves fire safety purposes. While fire does not spread slower in cooler environments, solvents and other similar substances vaporize slower at lower temperatures, which can help to slow down the spread of fire.

Additionally, keeping the airport cool helps manage the comfort and well-being of travellers. If the temperature inside the airport is too high, it may cause discomfort and drive people to avoid using the airport altogether.

The perception of coldness in airports may also be influenced by personal factors, such as the clothing worn by travellers, as well as external factors like the temperature difference between the airport and the outside environment.

Overall, the temperature range in airports is carefully considered to balance the needs of fire safety, passenger comfort, and the varying preferences of travellers from diverse climates.

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Comfort: temperatures feel lower when arriving from hotter climates

The temperature inside an airport may feel cold to some people, especially when arriving from a hotter climate. Airports are often large buildings with high ceilings, and the temperature can feel cooler as a result of the large, open space. Additionally, airports are transit hubs that cater to travellers from a variety of climates, and the indoor temperature is set to accommodate the majority of passengers.

While 20-21°C (68-70°F) may not be a particularly low temperature, it can feel much colder in comparison to the hotter climates from which travellers are arriving. For example, a traveller arriving from a 40°C climate will feel a significant difference upon entering an airport set to 20-21°C.

The perception of temperature is also influenced by the clothing one is wearing. Travellers arriving from colder climates are more likely to be dressed in warmer clothing, whereas those from hotter climates may be dressed more lightly, making the airport temperature feel even cooler in contrast.

It is worth noting that not all airports are uniformly cold. Some airports may not have air conditioning, and the large number of people and equipment can make the airport feel even hotter than outside. Additionally, the temperature inside an airport can fluctuate depending on the time of day and the number of people present. As the number of people decreases, the temperature can drop, especially during the night when there are fewer bodies to moderate the output of the air conditioning.

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Cost: lower temperatures when it's hot outside increase utility bills

The temperature in an airport is a careful balance, and there are many factors that influence the indoor climate. Airports are large buildings with high ceilings, and they can feel cold due to the air conditioning, especially when they are busy with lots of people rushing to and from flights. The temperature outside can be extremely hot, but this is largely irrelevant when it comes to the temperature inside an airport—except when it comes to utility costs.

Maintaining a lower temperature in an airport when it is hot outside will increase utility bills. The larger the airport, the higher the costs will be. Airports are often busy, bustling places, and the body heat of thousands of people can significantly increase the temperature indoors. This means that air conditioning is required to keep the space cool, which can be costly.

In addition, airports are often designed with large windows to maximise natural light, which can contribute to solar heat gain. This can further increase the need for air conditioning, driving up utility costs. The challenge for airport operators is to balance providing a comfortable indoor climate for passengers and staff while also managing energy costs.

While it is important to keep costs in mind, passenger comfort and safety are also key considerations. A balance must be struck, as people will be unhappy if the airport is too hot, and they may even avoid the airport altogether. A pleasant indoor climate is particularly important for transit passengers who may be spending a significant amount of time in the airport, and who may be coming from or going to places with very different climates.

Furthermore, the temperature in an airport can impact the comfort and safety of passengers when they board their flights. Aircraft cabins are usually maintained at a temperature of around 20-21°C, so if the airport is significantly hotter, passengers may feel uncomfortable when they first board the plane.

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Personal preference: people typically prefer indoor temperatures below 28°C

Personal preference plays a significant role in determining comfortable indoor temperatures. People typically prefer indoor temperatures to remain below 28°C, and most large modern international airports follow this convention.

The preference for cooler temperatures in airports is influenced by several factors. Firstly, passengers often dress in heavier clothing when travelling, anticipating cooler temperatures in their destinations or during flights. Therefore, a temperature of 20°C-21°C in an airport may not be perceived as particularly cold, especially when people are dressed for cooler weather.

Additionally, airports are often busy with rushing passengers, and the body heat generated by large crowds can significantly impact the overall temperature inside the airport. As the number of people in an airport decreases, the temperature may drop, as the heating or air conditioning continues to operate without the body heat affecting the overall temperature.

Furthermore, airports are unique spaces where people from various climates converge. Some transit passengers may never even set foot outside, transitioning directly from one climate-controlled space to another. As a result, airports strive to maintain a comfortable temperature that caters to a diverse range of preferences and expectations.

While some may find the temperatures in airports too cold, others may feel comfortable or even warm due to individual differences in temperature tolerance and clothing choices. Ultimately, the preference for indoor temperatures below 28°C reflects a balance between creating a comfortable environment for the majority of passengers and managing energy costs, as maintaining extremely low temperatures can be expensive.

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Body heat: large crowds generate heat, making spaces hotter

While airports are often perceived to be cold, this is not always the case. In fact, body heat from large crowds can sometimes make the airport environment feel hotter. This is especially true when there is a high number of people in a small space, such as during peak travel times or when flights are delayed. The body heat generated by a large crowd can raise the overall temperature of the airport, making it feel warm or even stuffy.

The perception of temperature is also influenced by the clothing worn by individuals. When people dress for cooler temperatures, as they often do when travelling by plane, they may feel warmer in an airport environment that is set to a typical indoor temperature of around 20-21°C (68-70°F). This temperature range is chosen to balance the preferences of passengers, who may be coming from or going to places with different climates, and to prevent discomfort or avoidance of the airport due to extreme temperatures.

In addition, the temperature regulation in airports can be challenging due to the large and open nature of the buildings. The temperature in different areas of the airport, such as the gates and concourses, may vary, and the design of the airport can impact how heat is distributed. The movement of people and equipment within the airport can also affect the temperature and create pockets of warmth or coolness.

Furthermore, the temperature in an airport may feel colder or hotter depending on the external climate. For example, transitioning from an extremely hot outdoor temperature of 40°C to an indoor temperature of 20-21°C can feel like entering a refrigerator. On the other hand, if the outdoor temperature is mild or cool, the indoor temperature may feel pleasant or even warm in comparison.

Overall, while airports aim to maintain a comfortable temperature for passengers and staff, the perception of temperature can vary due to factors such as body heat from crowds, clothing choices, airport design, and external climate. In some cases, the collective body heat from a large number of people in an airport can indeed make the space feel hotter.

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Frequently asked questions

The temperature in an airport is influenced by many factors, including the number of people inside, outdoor temperature, and the use of air conditioning. The temperature inside an aircraft during the daytime is usually maintained at 20/21 °C, and airports tend to follow this convention. Some people believe that colder temperatures in airports prevent the spread of fires, but this is not necessarily true.

The perception of temperature is subjective and can be influenced by various factors such as personal preference, clothing, and the temperature one is accustomed to. For example, transitioning from 40 °C to 20/21 °C can feel like entering a freezer. Additionally, airports with higher passenger traffic may feel warmer due to body heat, while less busy airports or those without air conditioning may feel hotter due to equipment and external temperatures.

Airports use heating, ventilation, and air conditioning (HVAC) systems to maintain comfortable temperatures. These systems consider factors such as outdoor temperature, passenger volume, and energy efficiency. However, individual preferences vary, and some people may still feel too hot or cold despite the airport's best efforts.

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