Fire Hydrants Research Articles

Prototyping of vibration-sensing-actuation device which is contained high-power electrodynamic speaker for diagnosis of actual water main network

Water leakage and bursting due to deterioration of water distribution mains lead to water outages and economic losses. To prevent the accidents, we are conducting research to develop measurements and diagnostic methods for buried water mains. In this study, we focused on the shift in eigenfrequencies of in-plane bending vibration of rings because of deterioration. Therefore, we are developing the vibration-sensing-actuation device which detects the frequency changes of in-plane bending mode. The water distribution network is mainly composed from cast iron pipe. Moreover, the attached facilities for example fire hydrant and water valve are contained. Since attached facilities are fabricated from cast iron component, actual water main network is heavy facilities which have high rigidity. In order to excite the desired in-plane bending mode in heavy components, the proposed sensing-actuation device requires the high-power actuator. In this study, we introduce the high-power electromagnetic actuator more than 100W output into the proposed device. Furthermore, the fundamental operational tests were conducted under the various input signals in the laboratory situations. In addition, the field operation confirmation was performed in an actual water main network.

Experimental modal analysis of in-plane bending vibration mode using actual water main network

Accidents of water leakage and bursting due to deterioration of water pipes cause water outages and economic losses in the surrounding areas. We are conducting research to develop measurement and diagnostic methods for buried water pipes. The graphitic corrosion of water pipes in a buried environment causes a reduction in pipe thickness which leads to strength problems. For this reason, methods for detecting pipe thickness are necessary for evaluating pipe deterioration, however, there is no effective way to analyze pipe thickness today because it cannot be visually observed in a buried environment. In this study, we focused on the shift in eigenfrequencies of in-plane bending vibration of rings due to deterioration. At first, we performed an experimental modal analysis by using a water pipe network which is used in a practical water utility. In addition, we conducted a theoretical analysis based on a model of a two-dimensional ring with coupled incidental attachment. As a result, in-plane bending vibration was observed in the water pipe of actual size. Furthermore, in-plane bending vibration was observed when excited through fire hydrants and it is also observed in pipes that are different material and diameters.

Optimization Analysis of Water Supply Mode for Fire Protection System of Super High Rise Building

Abstract In order to improve the applicability and reliability of the fire water supply capacity of super high-rise buildings, the fluid analysis software Flomaster was used for simulation. Through the existing pumps, valves, pipelines, pressure reducing valves and newly developed fire hydrants and other components, the fire water supply system of super high-rise buildings is modeled. The pressure distribution of the system pipe network under a given fire water supply mode is studied. The research shows that the simulation can analyze whether there is excessive pressure in the fire hydrant system under different flow conditions in the actual fire extinguishing process. This paper simulates the actual fire extinguishing process of the fire hydrant system through a specific engineering case. The pressure distribution and flow distribution under different flow conditions are obtained. The excessive pressure position of the fire pipe network system under the given fire pump model is obtained. It provides a method for guiding the selection of fire pump and the design of fire hydrant system pipe network. It has certain guiding significance for the subsequent optimization of the design scheme of the fire water supply network and the prediction of the performance of the R&D equipment.

Efforts to reduce illegal parking in Lampung Province

Purpose: The formulation of the problem in this study is how land is prohibited for parking and the efforts to suppress illegal parking in Lampung Province. Research Methodology: The method used in this study was descriptive and qualitative. Results: The results of this study are There are 10 no-parking areas that must be obeyed, including: Bends, shoulders or a bridge, On pedestrian or bicycle tracks, Near traffic lights, On main roads, Facing or close to other stopped vehicles, Within 6 meters (20 feet) of an intersection, or within 9 meters (30 feet) of a bus stop, unless it is damaged. Then, they do not stop or park 3 m (10 feet) on the other side of a fire hydrant, or which may interfere with the access of firefighting vehicles to the hydrant, along slippery roads, on overpasses, tunnels, or on the side of the road leading to the overpass or tunnel, on grass verge or road shoulder. The efforts of the Lampung Province Transportation Agency to deal with illegal parking constraints are as follows: The Department of Transportation must perform mapping, good parking management not only helps in traffic management but also increases local revenue (PAD), the importance of awareness from the community and the government, the government must be present and provide guidance and ensure that parking is managed properly, there are sanctions for violators of indiscriminate parking, but the emphasis is more on education and guidance than sanctions alone.

Assessment of Emergency Exit Pathways and Fire Safety Measures in Football Stadium X: An Examination Following Indonesian Guidelines

The most significant football stadium riot tragedy occurred at the National Stadium (Estadio Nacional) in Lima, Peru, resulting in 362 fatalities. The second largest tragedy transpired at the Kanjuruhan Stadium, Malang Regency, Indonesia, leading to 135 deaths. This research aims to evaluate the conformity of evacuation routes and fire protection systems at the one of Football Stadium in Greater Malang, in accordance with the standards and regulations applicable in Indonesia. This analytical descriptive study employs a quantitative research design. The research process involved examining the factual conditions on the ground and subsequently comparing the suitability of evacuation routes and fire protection systems against the standard benchmarks and regulations in place in Indonesia. The results of this study indicate that the conformity level of the evacuation routes, comprising emergency stairs, evacuation routes, safety signs, assembly points, and emergency exits, is at 61.9 percent, denoting adequate compliance. Conversely, the active fire protection systems, encompassing portable fire extinguishers (APAR), hydrants, fire alarms, fire detectors, and sprinklers, show 0 percent compliance, meaning no conformity exists. This study is anticipated to serve as a reference for enhancing evacuation routes and fire protection systems at Football Stadium X: stadium in Greater Malang.

Design of Active Fire Protection System for Warehouse Buildings Using NFPA and Indonesian National Standard (SNI)

In the operational conduct of a company, especially those relating to the storage of materials and goods in warehouses, the occupational health and safety OHS) aspects are critical factors that cannot be neglected. Fire was one of the consequences of a non-standard OHS application. The purpose of this research was to provide a proposal for the design of fire protection systems in the Archives and Documents Company, which are light fire extinguishers, sprinkler systems, hydrants, and reservoirs. This research method is observational-descriptive. In conceptual planning, layout, and coordination with the company, the researchers directly perform observations on the PT Archives and Documents to analyze and identify the deficiencies of fire protection equipment owned by the associated companies. ADC requires a total of 9 light fire extinguishers, 192 sprinkler points, 6 hydrants, and a reservoir size of 343,000 liters as a fire protection system according to the National Fire Protection Association standards (NFPA). All buildings that are occupied by humans and have a risk of fire must be equipped with fire protection. for future research in the field of fire safety research to design an emergency response plan for a building by simulating it with advanced technology. By implementing the proposed fire protection, the Company can prevent fire and spread of fire more widely

Standpipes, Chimmeys, and Memorialization in the Caribbean

In this essay I read debates about amenities of water and waste in the British Caribbean in the late and immediate post-Victorian period through histories of intimacy and kinship centered in fiction by Caribbean writers of the last twenty years. In these novels and short stories, collecting water at a stream or a standpipe or emptying a chamber pot are actions that produce or recall moments of desire and aspiration, shame and punishment, in storylines that move between a past of enslavement and indentureship in the eighteenth and nineteenth centuries and a present of political and psychological stasis or upheaval in the 1950s, 1970s, or the early twenty-first century. Nineteenth-century discussions about fire hydrants or standpipes index a British Caribbean colony's evolving landscape of modernization and the disagreements about what shape and speed this process should take, and recent fiction allows us to discern how these amenities inherit and bequeath associations of trauma.

Determining the influence of an artificial defect on the mechanical properties of a flexible pipeline material during a rupture test

The object of research is the phenomenon of influence of hidden defects on the mechanical properties of the material of flexible pipelines. T-type pressure fire hoses with an inner diameter of 77 mm were used as test samples of flexible pipelines. During the operation of pressurized fire hydrants and their laying on vertical surfaces, they are subjected to significant bursting pressures in their longitudinal direction. That is, such operating modes of the sleeve may occur during its operation. The research was carried out on the FP 100/1 bursting machine, in which the test samples were fixed. The dependence of the stiffness and normal elasticity of the material of the flexible pipeline on the depth and length of the artificial defect when testing it for breaking has been established. With an artificial defect depth of 0.2 mm and its length from 0 to 40 mm, the stiffness of the flexible pipeline material decreases from 573.812 kN/m to 478.276 kN/m. With the indicated values of the defect, the normal elasticity ranged from 86.46 MPa to 64.567 MPa. When the depth of the defect increases by 0.4 mm, the stiffness of the sleeve material decreases to 432.902 kN/m, and the normal elasticity decreases to 58.442 MPa. The obtained results are explained by the fact that when the thickness of the threads of the base of the power frame is reduced by 33 %, the longitudinal stiffness and normal elasticity of the material of the flexible pipeline are reduced by 25 % and 26 %, respectively. The results of these studies are needed in practice because they can make it possible to develop new or improve existing methods of detecting hidden defects in the material from which flexible pipelines are made

Computer-Aided System for Layout of Fire Hydrants on Boards Designed Vessel Using the Particle Swarm Optimization Algorithm

Abstract The functional layout of fire safety equipment in technical spaces of ships is a time-consuming process. When designing a ship fire protection system, the designer must manually position each system component in such a way as to meet the requirements of regulations arising from the technical specification, various legal regulations of maritime conventions and classification societies of the vessel to be designed. Layout of fire hydrants assisted by a computer that is based on pre-defined criteria and various constraints could significantly support the designer in working easier and faster. This paper presents a prototype computer-aided design system that enables optimal placement of fire hydrants using the metaheuristic Particle Swarm Optimization (PSO) algorithm. This algorithm was used in Rhinoceros 3D software with its Grasshopper plugin for visualizing the arrangement of fire safety equipment. Various solution arrangements compared with the fire hydrant placement in real ships are illustrated by a case study. Demonstrating how design work can be facilitated and what potential benefits can be achieved are presented as well.

Evaluation of Fire Protection systems in Residential High-rise Buildings for Evacuation Optimisation- A Case of Bengaluru

Significance of the research- Among different types of occupancies, a Residential high-rise building presents a more significant challenge to fire protection due to its functionality, complexity, and economic value. Objective of the study- The key objective of the present paper was to examine the situation of physical (as opposed to non-physical) fire protection systems in randomly selected Residential high-rise buildings in Bengaluru for Evacuation optimization. Methodology- Methods used include Physical observation, document review, and interviews. A multi-attribute evaluation model/approach was applied to establish the sufficiency or suitability of fire protection systems in light of NBC-2016 [1] and Bangalore Byelaws-2016. The study reveals that fire-fighting/evacuation lifts and other fire protection systems are primarily present in the buildings. Nevertheless, due to inadequate maintenance or unsuitable elements, their safety performance is compromised. Research findings- The analysis revealed that fire hoses and hydrants demonstrated the highest level of adequacy and suitability in terms of their number, locations, and maintenance across the buildings. Conversely, only 50% of the buildings had a sprinkler system that was sufficiently installed, indicating a need for improved coverage and maintenance, possibly due to cost considerations. The performance of other systems was as follows: fire driveways (83%), fire escape staircases (83%), fire detection and alarm (40%), corridors and passageways (67%), assembly areas (83%), hose reels and hydrants (100%), fire brigade access and facilities (67%), safety signs and notices (17%), portable fire extinguishers (50%), and fire audits (17%). Based on these findings, it is recommended to prioritize increased efforts in inspecting and maintaining fire protection systems throughout the lifespan of the project to address the identified shortcomings. Additionally, the design of residential high-rise buildings should incorporate provisions for fire-fighting evacuation lifts and facilities catering to the needs of disabled individuals.

서울시의 소방 및 범죄분야 지역안전지수 향상 방안

This study aimed to propose a political alternative for improvement of local safety level index by making an in-depth analysis on the publicly-announced ratings and various sub-indicators connoted in the hidden side of the ratings focusing on the firefighting and crime prevention of Seoul Metropolitan City out of 6 fields shown in the local safety level index announced publicly by the Ministry of the Interior and Safety.
 As a result of detailed analysis on the local safety level index of Seoul, the field of firefighting which was rated 4 turned out to be relatively vulnerable as the index exceeded or fell short of national average value for more than 1 year in the number of participants who attended Sososim(fire extinguisher, fire hydrant, CPR) such as the number of service providers related to warehouse and transportation, ratio of firefighting policy budget per 10,000 of population as compared with the base year.
 And the field of crime prevention was rated 3 in the local safety level index but as for 8 sub-indicators for the year 2022, index such as the number of 5 major crimes occurrence rate per 10,000 of population, the number of bars per 10,000 of population, stress detection rate, the number of police stations per 10,000 of population, the number of crime-prevention CCTV per 10,000 of population, the number of safety house per 10,000 of population and the number of voluntary crime prevention group members per 10,000 of population exceeded or fell short of national average value, so everyone’s effort for improvement is considered necessary.
 Therefore, political plans for improvement of local safety level index in the field of firefighting and crime prevention of Seoul Metropolitan City out of local safety level index are First, improvement of relevant laws and institutions is considered necessary. A detailed plan for the foregoing includes establishment of a tentative name「Ordinance on Supporting Management and Improvement of Local Safety Level Index 」, creation and expansion of safety control tower and organization through reorganization of safety organization of Seoul.
 Second, vulnerable indicators of local safety level index in firefighting and crime prevention must be improved. As a plan for the aforementioned, creation of firefighting safety by service providers related to warehouse and transportation, support for enhancement of ability for firefighting safety for old houses, expansion of budget for firefighting policy of Seoul and expansion of Sososim education of Seoul for firefighting are considered necessary.
 For improvement of vulnerable indicators in crime prevention, the result shows that political improvement such as improvement of crime-inducing environment of area where bars and adult entertainment establishment are congested, request for extension of local police stations through consultation with Seoul Metropolitan Agency, expansion of CCTV and application of CPTED method through the connection with urban regeneration project, expansion of psychological support system, extended operation of safety house, revitalization of operation of voluntary crime prevention groups for the citizens of Seoul is urgently necessary.

ANALYSIS OF FIRE PROTECTION SYSTEM ON THE MULTIFUNCTIONAL LABORATORY BUILDING OF AR-RANIRY STATE ISLAMIC UNIVERSITY BANDA ACEH INDONESIA

Fire can occur if three main elements are met, namely heat, oxygen, and fuel or it is called the fire triangle. Risks arising from fire incidents can be minimized by a fire protection system and the reliability of building safety systems. To ensure that the two systems run optimally, an evaluation and examination are needed on the existing conditions based on the applicable safety technical standards. This study aims to determine the existing condition of the applied fire protection system and to determine the reliability of the building safety system in the Ar-Raniry Multifunctional Laboratory Building. This research was conducted using a quantitative descriptive method. Research data collection was carried out using observation and interview methods. The observation method for existing conditions was carried out using a checklist compiled based on the Indonesian Minister Public Works’ Regulation Number 26/PRT/M/2008 of 2008 for fire protection systems and fire protection code from the National Standardization Agency of Indonesia Number Pd-T-11-2005-C on the reliability of building safety systems. The results show that the fire protection system in the UIN Ar-Raniry Multifunction Laboratory building was in the Enough category, with a value of 3.25. This is due to the absence of several active fire protection instruments such as fire extinguishers, sprinklers, and hydrants. Addionally, from the results of the reliability of the building safety system for the UIN Ar-Raniry Multifunction Laboratory building, it is in the Enough category with a value of 63.02. This is caused by the absence of emergency lighting and water sources as a source of hydrant water.

Water, Sanitation, and Hygiene (WaSH) insecurity in unhoused communities of Los Angeles, California

BackgroundAccess to water and sanitation is a basic human right; however, in many parts of the world, communities experience water, sanitation, and hygiene (WaSH) insecurity. While WaSH insecurity is prevalent in many low and middle-income countries, it is also a problem in high-income countries, like the United States, as is evident in vulnerable populations, including people experiencing homelessness. Limited knowledge exists about the coping strategies unhoused people use to access WaSH services. This study, therefore, examines WaSH access among unhoused communities in Los Angeles, California, a city with the second-highest count of unhoused people across the nation.MethodsWe conducted a cross-sectional study using a snowball sampling technique with 263 unhoused people living in Skid Row, Los Angeles. We calculated frequencies and used multivariable models to describe (1) how unhoused communities cope and gain access to WaSH services in different places, and (2) what individual-level factors contribute to unhoused people’s ability to access WaSH services.ResultsOur findings reveal that access to WaSH services for unhoused communities in Los Angeles is most difficult at night. Reduced access to overnight sanitation resulted in 19% of the sample population using buckets inside their tents and 28% openly defecating in public spaces. Bottled water and public taps are the primary drinking water source, but 6% of the sample reported obtaining water from fire hydrants, and 50% of the population stores water for night use. Unhoused people also had limited access to water and soap for hand hygiene throughout the day, with 17% of the sample relying on hand sanitizer to clean their hands. Shower and laundry access were among the most limited services available, and reduced people’s ability to maintain body hygiene practices and limited employment opportunities. Our regression models suggest that WaSH access is not homogenous among the unhoused. Community differences exist; the odds of having difficulty accessing sanitation services is two times greater for those living outside of Skid Row (Adj OR: 2.52; 95% CI: 1.08–6.37) and three times greater for people who have been unhoused for more than six years compared to people who have been unhoused for less than a year (Adj OR: 3.26; 95% CI: 1.36–8.07).ConclusionOverall, this study suggests a need for more permanent, 24-h access to WaSH services for unhoused communities living in Skid Row, including toilets, drinking water, water and soap for hand hygiene, showers, and laundry services.

In‐situ leakage diagnosis of urban water supply network by fire hydrants and EPANET simulation

AbstractA method of in‐situ leakage diagnosis of a water supply network using fire hydrant water flow measurements and simulation by EPANET software was established. A network with 1032 m of water distribution pipes and 350 user‐side water meters in Taipei was separated into five zones. The lowest volume of daily water flow occurred between 1:00 a.m. and 6:00 a.m., with values ranging from 0.004 to 0.785 m3/min; these data can be regarded as a minimum value of water leakage in the network at midnight. The volume of water leakage was strongly correlated with observed pressure transients, enabling the measurement of the water leakage in the network, which ranged from 5.76 to 628 m3/d. The total water leakage simulated by EPANET was 1.48 m3/d in the network. Although this value deviated by 23% from the District Metered Area (DMA) results, both EPANET and DMA tools confirmed that zones 4 and 5 had severe water leakage problems. Simplifying valves and combining neighboring pipes of the same diameter during the EPANET simulation was efficiently tackle water leakage. EPANET allows for quick diagnosis of the water leakage areas, whereas the DMA tool allows for precise measurements of water volume and pressure. The costs of in‐situ diagnosis and EPANET simulation include instruments, labor, and time, and are estimated to be lower than those of the DMA tool. Furthermore, the methodology of this study can reduce the risks of underground working disasters.

Authorized Vehicles Only: Police, parking, and pedestrian access in New York City

Sidewalks and crosswalks do not benefit pedestrians if they are blocked by automobiles. In New York City, local media have documented that cars outside of law-enforcement offices routinely park on sidewalks and in crosswalks. This study systematically and longitudinally pursues this topic by tracking the geographic extent of this obstructive parking via in-person observation of the streets surrounding all 77 New York Police Department (NYPD) station houses, across all five boroughs. Combined with review of historical street imagery, this approach reveals widespread and longstanding parking on sidewalks, and to a lesser extent, in crosswalks. Of 77 NYPD station houses, 70 (91%) exhibited parking of at least one of these kinds, with sidewalk parking often extending along the entire block (and not simply in front of station houses), on adjacent blocks, and on both sides of the street. This renders many sidewalks impassable – forcing pedestrians into traffic – and in many cases directly abuts residences and businesses, curtailing access to such destinations. Longitudinally, such obstructive parking was present across 82% of 703 street-imagery data points, indicating this has largely become the default (and not occasional) use of adjacent sidewalks. In-person observation also demonstrated other ways this parking has had negative effects surrounding NYPD station houses, including double parking, obstruction of bus and bike lanes, and blocking of fire hydrants. These findings broaden the study of pedestrian accessibility and safety beyond the quality and design of sidewalks and intersections, to include chronic automotive obstruction, and indicate that parking behavior surrounding public-sector offices, if left unchecked, significantly degrades walkability.

Optimization-Based Selection of Hydrants and Valves Control in Water Distribution Networks for Fire Incidents Management

In England and Wales, water utilities reduce hydraulic pressure to a minimum regulatory threshold in order to reduce leakage and avoid financial penalties. However, utilities are not legally bound to guarantee specific flow rates from fire hydrants, thus posing a risk for firefighting. We formulate a biobjective mixed-integer nonlinear program (MINLP) to simultaneously determine control valve settings and the location of fire hydrants to be utilized in a water distribution network during urban fire incidents. The goal is to provide the required flow rate from the fire hydrants while minimizing 1) the distance of the utilized fire hydrants from the fire location and 2) the impact on customer supply. As the solution is required in real-time, we propose an optimization-based heuristic, which relies on iteratively solving a NLP approximation and relaxation of the MINLP formulation. Furthermore, we assess the quality of the heuristic solutions for the presented study case by calculating global optimality bounds. The proposed heuristic is applied to an operational water distribution network.

Does it pay to park in front of a fire hydrant?

Abstract You’re a New York motorist, running horribly late, and there’s an empty space beckoning right outside your destination. Problem is, it’s in front of a fire hydrant. Should you risk getting a ticket? Take some advice from Chris Andrade, Jonathan Auerbach, Icaro Bacelar, Hane Lee, Angela Tan, Mariana Vazquez, and Owen Ward

Linking Police and EMS Records: An Approach to Strengthen Bicyclist Injury Reporting

Bicyclist injuries are underreported in police crash databases. We explored the value of linking police-reported crash data with emergency medical services (EMS) data within the City of Milwaukee, WI. Using data from 2014 to 2016, we linked records by inspection (identical date, similar time of day, and similar roadway location) and found 154 matching records between the two databases (representing 41% of the 375 police crash records and 44% of the 348 EMS injury records). Matched records were more likely to involve fatal and severe injuries according to police-assessed injury ratings. The two datasets also provided different insights into bicyclist injury crashes. Injuries captured only by police reports were significantly more likely than injuries captured only by EMS to be along high-traffic streets and commercial districts and significantly less likely to be near parks. Nearly all police records described the driver and bicyclist movements (e.g., turning) and operating behaviors (e.g., failure to yield) that had contributed to the crash. In addition to capturing more bicyclist injury events, EMS records revealed additional information about their causes. Twenty-three percent of EMS narratives described falls. These falls involved intoxication, striking a curb, swerving to avoid automobiles or other bicyclists, doing tricks, and getting a tire caught in rail tracks. Another 11% described bicyclists striking objects, including a bus stop shelter, stop sign, fire hydrant, and fence. Although there are strengths and limitations to both datasets, linking police-reported crashes with EMS records produced a broader understanding of bicyclist injuries.

Time-Lapse Resistivity Monitoring of a Simulated Runoff Test in a Bioswale, Philadelphia

As part of the reconstruction of Interstate-95 in Philadelphia, a series of vegetated stormwater infiltration basins (bioswales) have been installed to manage highway runoff. To assess these bioswales, we used simulated runoff tests (SRTs), where the bioswale is flooded from a fire hydrant to simulate a major storm event. SRT monitoring relies on point measurements of inflow, outflow, and soil moisture to determine the volume of stormwater the bioswale can handle and the time to recovery. To provide better spatial coverage for site assessment, we tested the use of time-lapse electrical resistivity tomography (ERT) during a SRT. Using an onsite geophysical monitoring station, we performed ERT surveys every 4 h before, during, and after the SRT test. Inflow and outflow measurements taken during the SRT found that a majority of the water did not exit the bioswale via the outlet box. The time-lapse inversion results indicated that runoff uniformly spread throughout the basin before infiltrating into the heterogeneous urban soil below. The ERT demonstrated that the underlying native soil contributed to the overall performance of the bioswale, a contribution which was previously assumed to be minimal. Recovery to pretest soil moisture levels took roughly 2–3 days, according to both soil moisture sensors and time-lapse geophysical data. The SRT results were consistent with natural storm events recorded by our geophysical monitoring station, which have been monitored continuously for over a year. Use of ERT during SRTs characterize the pattern of infiltration and recovery rate of the soil beneath a stormwater control. Additionally, the heterogeneous infiltration observed during the SRT suggested that ERT surveys preconstruction may improve future planning of stormwater controls by guiding the location of infiltration measurements.

Interior designs of medical rooms for disabled people

This article is devoted to the specifics of space planning in medical institutions for disabled people and the impact of these factors on the interior solution. The space-planning solution of such institutions should be easy-to-read, without a complicated plan. Communication zones should not have the function of a waiting area. It is offered to specially organize such zones with the installation of various information and announcement systems. Within the zones of space perception by disabled people, there should be handrails with tactile information, light-signal designations and other fixtures to facilitate the movement of disabled people. It is advisable to relocate disruptive equipment in the form of light switches, different maintenance boards, fire hydrants, and other equipment from this zone, which will result in the requirements for change in a number of regulatory documents. Special equipment should be installed in the lavatories and wards for disabled people. The color solution can be close to the solution of a dwelling unit.