The global pandemic has become more frequent due to ozone layer depletion, which has increased atmospheric temperature, making it more conducive to disease growth. To adapt to unforeseen disease outbreaks, hospitals and healthcare facilities need to be flexible and adaptable. Traditional construction models often reduce floor space, but the coronavirus necessitated swift construction to manage the outbreak. In Jordan, converting spacious settings into pandemic management zones could be a better alternative. This would involve reconfiguring entrance spaces, upgrading ICUs, and improving isolation wards. Other designs should be considered based on the ground and the nature of the cases to be managed.
4.3.1. Interior Design Process and 3D Proposed Module Design
Data analysis once again has proven to be a fundamental tool in the analysis and prediction of events. All qualitative and quantitative data were gathered, and case study hospitals were analyzed to develop a new and improved hospital interior design process for Jordan. The new model is not limited to COVID-19 prevention alone but rather supports all areas of improving healthcare for the country, including enhanced building plans with all aspects of enhanced technological features, such as nano-antibacterial self-cleaning, nano-self-sterilizing, air-purifying wall coatings, etc. Finally, special thanks to all participants, the Ministry of Health of Jordan, and all other supporters of the study.
Building Research Establishment Environmental Assessment Method (BREAM) criteria were, however, considered in the process of designing the proposed building. The overall proposal designs emphasize the natural sustainable features, disabled persons, and less capacitated persons.
In the picture above (
Figure 9), special care should be given to pandemic disasters, the safety of all the staff, and the patients within the hospital, making sure all the features required to win the fight against the COVID-19 virus are considered. These features are explained in
Figure 10 showing the process the pandemic hospital design. Natural ventilation in the patients’ rooms; incorporation of greenery within and outside the hospital; the required average number of patients’ capacity; isolation of the patients by making one patient per room; and a respiratory ventilation machine for patients with breathing difficulties. An article titled, “Adapting hospital capacity to meet changing demands during the COVID-19 pandemic”, written by Ruth McCabe, stated that the number of hospital beds must be greater than 1550 in order to fight any kind of pandemic, and this is approved by the National Hospital Service (NHS) in England [
77].
The image below presents the process that interior pandemic hospital management and design processes follow. These processes focus on the interior of the hospital building while stating the necessary steps to follow in order to fight any kind of pandemic, current or future. Technological advancement indicates the need to incorporate the technical, mechanical, and advanced interior features of the hospital building. Nanotechnology was chosen to be within the interior walls of the hospital because of its superior effects. The nanotechnology process is explained in detail in below. The other technological aspect involved in the hospital process was the machinery that will help run the hospital successfully. These machines may involve any mechanical and electronic devices used in the hospital, like oxygen mechanisms, ventilators, electric generators, uninterrupted power supplies (UPS), safety alarms, smoke sensors, HVAC, etc.
Effective policymaking is a necessary process that has to be created and followed carefully in order to successfully combat pandemics in Jordan. These policies are a set of guidelines and principles that will be applied in the interior parts of the pandemic building. These guidelines must be proposed to sustain the exercise of intensive-care professionals throughout the pandemic, in addition to encouraging the growth of national policies, which must be authorized by hospitals’ governing institutions or related local government authorities. These findings are also in line with Stephen Warrillow’s research in 2020 [
77].
Figure 11 below shows the proposed COVID-19 hospital isolation center; it also shows the nine floors in the building, the greenery in the surroundings, the footpaths, and the windows for cross ventilation. The building was designed with greenery to support the natural cooling and good exchange of respiration within the hospital. The plants will absorb the carbon monoxide exhaled by both the patients and the hospital staff while giving out oxygen. However, they help cool down the hospital’s surroundings by absorbing the sun’s heat and protecting the building from direct sunlight. The importance of using greenery was adopted from BREEAM green building criteria in this hospital building proposal.
The picture above (
Figure 12) shows the space between the blocks of the pandemic hospital building. It shows the passageway along with some plants that reduce the impact of the sun penetrating the building interior through the openings. It also protects the building walls from heat, which keeps the interior cool even at night when the exterior walls are cooling.
This sort of plan depicts a typical hospital model, which serves as a template that is adopted in arriving at the 3D designs in this research work. This is a comprehensive model that pays attention to details in selecting every component of the hospital room, including the passageways for effective circulation. Nanotechnology is employed to include a touch of modern-day advancement, ranging from its applications on tiles, healing vents, water closets, walls, curtains, and upholstery. The implementation of simplicity in the circulation within the interior of the building makes it easy for both the patients and staff to move freely and identify the facilities they require easily. In this design, there are four elevators, i.e., two on each axis: two closer to the main entrance and two at the end of the hospital. These elevators can be used by both the disabled and both staff and patients. However, there are two emergency staircases in this design.
The 3D plan in
Figure 13 is properly explained in the figure below. There are a total of seven external doors in every block in this hospital; some of these doors are connected to the interior and some are not. Doors like the main entrance, the alternative entrance, and the two emergency exits are connected to the interior of the building. While all the service doors only have access to the machines that were placed for utility, supply, and maintenance purposes, such situations usually arise from time to time. Most of these machines require these doors for servicing, maintaining, and the provision of the materials required for the machine to operate properly. The main entrance, as shown in
Figure 14, is facing the parking area of the hospital compound. This door has a sensor to open and close electronically, but it gives access to the reception area first, where patients are first registered and admitted if the need arises. The next room after the entrance door is the airlock room, which prevents the interior air from coming to the exterior. With this, the virus will be contained within the building, and the prevention of its spread will be strong. Also, in the airlock room are hazmat suits, face masks, hand gloves, a hand wash basin, and detergent that the visitors, patients, and staff must wear before entering the hospital. There are 27 patients’ rooms per floor, as shown in
Figure 13, and each patient’s room was designed in such a way that it would not keep the virus for a long period. This is because the virus does not perform well in a hot environment [
79,
80,
81]. Therefore, the patient’s room did not have any cooling device like an air conditioner or HVAC; rather, a natural cross-ventilation was devised in the patient’s room. A detailed explanation of the 3D plan design was shown in
Figure 14 below.
This cross-ventilation was achieved by having one window on two different walls of the room (refer to
Figure 15). This is even more sustainable in terms of cost savings and electric consumption when operating the hospital [
80,
82].
The HVAC, however, exists in the building, but at a controlled rate of temperature that is not more than or less than 24–26 °C. The HVAC exists in the passage and all other rooms within the middle-centered rooms. Because the rooms lack natural ventilation, the interior core will be uninhabitable for both staff and patients. There is no HVAC in the patient rooms, as mentioned earlier.
The patient’s room is shown in
Figure 15, which shows that the room is divided into two portions. The small portion is a small entrance for cleaning up and disinfecting before and after coming into contact with the patient. The bigger portion is the patient’s room, well equipped with several machines that will aid quick recovery and be easily accessible by the patients and the staff. These machines were oxygen machines, ventilators to support people with breathing issues, intensive care devices to support patients in critical conditions, chargers for the defibrillator paddles, etc. As mentioned earlier, there are windows in the room for cross-ventilation. However, the room contains a personal toilet for the patient and a device that will lift patients in a critical condition and take them to the toilet automatically.
In this model, there were about three hospital registration desks, one at the main entrance and the other two at the center of the building. As shown in
Figure 16, this is an example of how the inside of a hospital registration desk looks. In this registration desk, patients who had been discharged, died, or were in critical condition will be recorded and documented. The registration desk at the entrance was for patients who were admitted for the first time. However, the registration desk will always have nurses in case of emergencies that arise from existing patients in the hospital.
In this hallway shown in
Figure 17, the computer is placed beside the door of every patient’s room, along with a washbasin for disinfection. This is necessary to keep individual records that can be accessed remotely and to disinfect the hands for the protection of the staff.
The hallway is part of the pandemic hospital that should connect all the sections and wards of the building. This part is very important and regularly used; therefore, special care must be given to this building part by regularly cleaning and sanitizing it. Also, it must connect with all other parts of the building at the same floor level or elevation so as to provide easy access for patients’ beds, wheelchairs, and other wheeled hospital gadgets to be easily moved around the building to decrease the chance of accidents occurring. Other parts of the hospital that the hallway connected were the patients’ wards or rooms, the interior reception area, elevators, doctors’ and nurses’ rooms, cafeterias, stores, emergency staircases, and exits. All the parts of the hospital can be kept at an average temperature of at least 30 °C except the patients’ room, which is required to be around 37 °C and not more than 40 °C. Cross ventilation is encouraged in the patients’ room instead of the provision of HVAC because natural ventilation is a very important factor in the fight against COVID-19 and it is sustainable as well, according to the Building Research Establishment Environmental Assessment Method [
83].
The hospital’s tools and equipment sterilization process will be explained in the picture below (refer to
Figure 18).
Figure 18 depicts the process of sterilization of equipment and tools during the event of COVID-19 and any other pandemics. The fact that thorough sterilization and burning or incinerating some tools and consumables eliminates the virus makes it an effective process of disinfecting the tools before reusing them on another patient. This process was developed in an effort to avoid the spread of the virus between different patients. The stages in the sterilization process, as shown in
Figure 18, begin with the temporary storage of the equipment and the wearing of protective gear like hand gloves, protective suits, and boots to protect the staff conducting the process. A preliminary wash should be performed with a detergent because any detergent can kill the virus and remove dirt from the tools. Then, a disinfectant can be introduced, and the tools should be left inside the liquid for 5 s before finally being thoroughly washed to make sure they are safe to be reused. The disinfectant liquids are many, but some effective COVID-19 disinfectants are sodium hypochlorite (bleach or chlorine) (0.1% or 1000 ppm, or 1 part of 5% strength household bleach to 49 parts of water) and alcohol (at 70–90% concentration) [
84]. The sterilized equipment should be taken to a separate clean storage area, separated from the dirty ones, ready to be used.
4.3.2. The Application of Nanomaterial in the Design Process
The new nanometer materials challenge designers’ thinking and promote the evolution of designers and interior design styles. As a result, nanomaterials in building materials have a very broad market application potential as well as significant economic and social benefits; new nanomaterials are increasingly “created”, forming a virtuous cycle that has influenced and promoted the development of interior design [
85,
86,
87].
This underlines the importance of carefully selecting finishing materials in the process of building or structural design. Nanotechnologies, therefore, serve as a useful tool for putting materials to better use in the field of architecture. The use of substances on a nano-length scale can enhance the features they possess and ensure that the ways in which they are properly utilized are well spread out [
88,
89].
The nanomaterial technology process in pandemic hospital design is shown in the figure above (
Figure 19). The importance of this technology has been highlighted, which will help achieve an effective pandemic hospital management system. The pandemic hospital requires regular cleaning and sanitation, performed hourly. This technology will assist in so many parts of the hospital when it is applied. It needs to be applied to the walls, ceramics, ceiling, furniture, and floor of the whole hospital
Figure 19. This will minimize sanitation efforts, prevent the transmission of infectious or communicable diseases, and purify indoor air quality. This is undertaken because the nanomaterial possesses several features that a clinical environment requires in order to have a disease-free environment. This feature is the self-cleaning environment, which prevents hospital infectious diseases, is antibacterial, kills insects like spiders and their webs, eliminates mold and fungi, and prevents chemical hazards.
The table above (
Table 14) explains the effects of nanotechnology when applied to the hospital building. The assessment was performed using various literature reviews conducted for this research. The table begins with the pillars of sustainability measures such as economic, social, and environmental sustainability measures, for which the overall assessment was very good. The negative effects of nanotechnology are minimal, thereby resulting in a poor score; the score for unknown effects was also very poor, which indicates that most of the effects of the nanomaterials are known and are mainly positive. Preventing the loss of the energy effect of nanotechnology was good, as the material helped in retaining the interior temperature and used less energy in maintenance, which resulted in energy loss prevention from nanomaterial effects. The overall assessment of this table was “very good” with 13 scores and 6 measures indicated as “good”, “fair”, “poor“, and “very poor”. This shows the importance of nanotechnology’s involvement in this study. These results are summarized in the chart below; refer to
Figure 20.
The chart above (
Figure 20) shows the overall assessment of nanomaterials when applied to hospital buildings. The result was presented in percentages, which summarizes the overall outcome of
Figure 20. Good and very good amount to 82.61%, while poor and very poor amount to 13.04%, and fair is 4.35%, which means that it is neither good nor poor. The overall effects of 82.61% supersede the negative or poor effects; this shows that nanotechnology is highly effective in hospital design and management.