DSSR Elective Disaster Management Unit 7.pptx

VageeshaShanthaVeera 16 views 43 slides Oct 19, 2024
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About This Presentation

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Unit 7 : Disaster Management Dr S V Vageesha Campus Director, DSEU

Presentation Components Disaster Management : Disaster Rescue, psychology of rescue, rescue workers, rescue plan, rescue by steps, rescue equipment, safety in rescue operations, debris clearance and casualty management

Introduction A disaster is a phenomenon which puts humans and property in a dangerous and disadvantageous situation. Disasters are serious disruptions to the functioning of a community that exceed its capacity to cope using its own resources. Disasters can be caused by natural, man-made and technological hazards, as well as various factors that influence the exposure and vulnerability of a community. Types of Disasters Natural Disasters Wind related: Cyclone, storm, hurricane, tornado etc. Water related: Floods, cloud burst, drought Earth related: Earthquake, tsunamis, avalanches, landslides, volcanoes. Man-Made Disasters War/battle/riots Accidents of trains/vehicles/ aeroplanes Industrial accidents Fire and forest fires Nuclear explosions/accidents Deforestation/soil erosion/air/water pollution

Introduction Disasters are regular phenomenon in the world. Whatever be the type of disaster, the result is loss of lives and damage to the properties. Thus, it is necessary to reduce these effects by planning beforehand. Disaster management is the discipline dealing with and avoiding risks caused due to hazards/disasters. It involves preparing, supporting and rebuilding society when natural or man-made disasters occur.

Disaster Management  Disasters are serious disruptions to the functioning of a community that exceed its capacity to cope using its own resources. Disasters can be caused by natural, man-made and technological hazards, as well as various factors that influence the exposure and vulnerability of a community.  Though often caused by nature, disasters can have human origins. According to the   International Federation of Red Cross & Red Crescent Societies   a disaster occurs when a hazard impacts on vulnerable people.  The combination of hazards, vulnerability and inability to reduce the potential negative consequences of risk results in disaster ( VULNERABILITY +  HAZARD  ) /  CAPACITY  =  DISASTER  

Disaster Management Earthquake prediction is not possible till to date. disasters will always come and we will have to live with them. Every year mainly lives are lost due to earthquake. The most important activity after earthquake occurrence is Rescue. A properly managed Rescue operation can result in saving of lives. Essentials of rescue Operation : rescue workers, rescue plan, safety aspects, casualty management etc.

Disaster Management

Phases of Disaster Management

Phases of Disaster Management Mitigation Mitigation efforts prevent hazards from developing into disasters or to reduce the effects of disasters when they occur. Example of mitigation are strengthening and retrofitting of buildings to make them earthquake resistance, creating awareness in public about earthquakes through media and schools so that they should know what to do during earthquakes. It also includes enforcement of building codes and their revision from time to time.

Phases of Disaster Management Preparedness: In the preparedness phase, emergency managers develop plans of action for when the disaster strikes. It include the proper training programmes for rescue workers, maintenance and checking of equipment and emergency services, evacuation plans and control of supplies etc. It also includes developing volunteers from common people to work during rescue operations.

Phases of Disaster Management Response: The response phase is the reflection of country’s readiness to cope quickly and effectively during and after disaster. It includes the mobilization of necessary emergency services like police, volunteers, fire fighters and NGO’s. A well- practiced plan developed in preparedness phase can result in effective rescue efforts. Rehearsals of rescue plans is essential to achieve optimum output in the response phase; medical facilities should be checked and enhanced from time to time. The response phase starts with rescue phase which is discussed later. For example: to facilitate emergency operations, the earthquake prone regions should be equipped with a number of emergencies centers. The role of such centers should be to maintain stock of food, medicine, building material etc. for emergencies. They should also do the task of survey, assessment of damages and teaching of evacuation measures to common people.

Phases of Disaster Management Recovery: The aim of the recovery phase is to restore the affected area. Recovery phase is mainly concerned with rebuilding destroyed property, re-employment, repair of other essential infrastructures and services. The recovery phase starts when the immediate threat to human life has reduced. In the long-term disasters, like wars, famine etc. which may last up to many months, the recovery phase starts early. The recovery phase is generally long and may take up to five years. There are three main categories of recovery phase. Restoration: Restoration of essential services, homes and other infrastructure. Rehabilitation: Physical and mental treatment of affected people. Reconstruction: Reconstruction of collapsed buildings and infrastructure.  

Disaster Rescue Rescue is to save life and minimize injury to people and damage to property. Common Rescue Operations : To remove trapped people and support them during rescue operations. To recover and identify the dead. To provide support to other services or teams.

Psychology of rescue Rescue operation is also full of danger. People tend to react differently to danger. But mostly there is a feeling of anxiety and fear in all the persons because it is not just the victim who faces the danger, but the rescuer also faces the same danger in order to rescue the victim. Dangers are still present when the main danger has passed. The main difference between the condition of rescuer and victim is that the rescuer is better able to handle the situation because he can for see the danger and he is well equipped. It is normal to be anxious and feel fear during danger. Other emotions which arise during a rescue operation are pity, disgust, contempt, pride, concern and many more. The pressure of urgency or emergency is always there on rescuer. It decreases the efficiency of the rescue operations. The rescuer must understand the psychology of victims also in addition to the physical needs. Rescuer should help them in coming out of the trauma.

Psychology of Rescue When disaster strikes, physical assistance may be only part of what survivors need. “Psychological First Aid” for disaster-induced stress and trauma may also be required. Severe cases will require the assistance of a mental health professional. For many, however, the best medicine you can provide may be a sympathetic ear.

Psychology of Rescue Disaster-induced stress and trauma are “normal” reactions to an “abnormal” situation. Disaster survivors normally experience a range of psychological and physiological reactions. Survivors’ reactions may become more intense as the amount of disruption to their lives increases. Strength and type of reaction varies with each person and depends upon several factors: Preparedness • Prior experience with the same or a similar event • The intensity of the disruption • The emotional strength of the individual • Individual feelings that there is no escape, which sets the stage for panic • The length of time that has elapsed since the event occurs.

Psychology of Rescue Survivors may go through distinct emotional phases following a disaster: In the impact phase, survivors do not panic and may, in fact, show no emotion. They do what they must to respond to the situation and keep themselves and their families alive. In the inventory phase, which immediately follows the event, survivors assess damage and try to locate other survivors. During this phase, routine social ties tend to be discarded in favor of the more functional relationships required for initial response activities such as searching out family members and seeking medical assistance. In the rescue phase, emergency services personnel are responding and survivors take direction from these groups without protest. They trust that rescuers will address their needs and that they can then put their lives back together quickly. In the recovery phase, survivors may believe that rescue efforts are not proceeding quickly enough. That feeling, combined with other emotional stressors (e.g., dealing with insurance adjusters and living in temporary accommodations), may cause survivors to pull together against those who are trying to help them.

Psychology of Rescue Pre-empt some of the symptoms by taking good care of yourself! • Try to rest a bit more. • Eat well-balanced and regular meals (even when you don’t feel like it). • Try to keep a reasonable level of activity - physical activity is often helpful. • Reestablish a normal schedule as soon as possible. Fight against boredom. • If you are alone, have someone stay with you for at least a few hours or periods of a day. • Recurring thoughts, dreams, or flashbacks are normal - don’t try to fight them. They’ll decrease over time and become less painful.

Psychology of Rescue Post-event psychological and physiological symptoms: The intensity, timing, and duration of these responses will vary from person to person. They may be: acute or mild, immediate and/or delayed, cumulative in intensity. Psychological Symptoms: • Irritability or anger • Self-blame, blaming others • Isolation, withdrawal • Fear of recurrence • Feeling stunned, numb, or overwhelmed Physiological Symptoms: • Loss of appetite • Headaches, chest pain• Diarrhea, stomach pain, nausea • Increase in alcohol or drug consumption • Feeling helpless • Concentration and memory problems • Sadness, depression, grief • Denial • Mood swings • Hyperactivity • Nightmares • Inability to sleep • Fatigue, low energy If the symptoms described above are severe or if they last longer than six weeks, the traumatized person may need professional counseling.

Psychology of Rescue Emotional First Aid for Survivors: Using these techniques will provide the survivor the initial comfort and support he/she needs in taking the first step toward recovery. • Establish Rapport. Talk to the person. Encourage him or her to talk about his/her feelings as well as their physical needs. • Listen. If the person has something to say, take the time to listen. • Empathize. Show through your response that you understand the person’s concerns or worries and that such feelings are to be expected. • Provide Confidentiality. Respect the person’s confidence. Don’t repeat personal information to other people. • Some of the following may also help to alleviate the emotional pain of a traumatic event: • Spend time with the traumatized person. • Reassure them that they are safe. • Offer your assistance even if they have not asked for help. • Don’t take their anger or other feelings personally. • Don’t tell them that they are “lucky it wasn’t worse” - they won’t be consoled by this. Instead, tell them that you are sorry such an event has occurred and you want to understand and assist them.

Psychology of Rescue “Humanizing” the disaster response: In the aftermath of a disaster, rescue operations can be more responsive to both the survivors’ and rescuers’ psychological needs if their feelings are recognized. Psychologists encourage open, honest expression of emotions as a self-protection mechanism. To avoid “emotional overload,” survivors and rescuers should be allowed to express their feelings openly, as long as doing so does not interfere with the rescue. Listen, but try not to take ownership of others’ feelings.

Rescue Workers Survivors: Survivors are those persons who have escaped in the danger i.e. they are not injured. The first reaction of survivors, is to help their neighbors and families. Sometimes, they don’t know what to do but feel that they must do something. Their intention is good but sometimes it hampers or interrupts the function of trained rescue teams. But survivors are the first one to help victims. For example, in case of fire or toxic gas exist at the site of emergency; the first group to start rescue work is of the survivors. But there is danger also involve with group of rescue workers because they are untrained

Rescue Workers Untrained People: The second group of rescue workers is those people who witness the event or are in the neighborhood of the event. Some of these people have a desire to help the victims. They also bring necessary things with them and can be very effective if these things are properly supervised. But a large number of people are curious and just want to watch without helping rescuers and victims. They can cause interference in rescue operations and should be controlled.

Rescue Workers Trained People: These are the last one to arrive at the scene. These are the trained rescuers from police, fire NGO’s and state emergency departments. These people know what to do and how to use the available resources and materials. They can also take the help of untrained people efficiently to carry out rescue operations in proper way.

Qualities of Rescuer Physical fitness : The rescue operation requires stamina and physical fitness because they often continue for long time and in challenging environment. Interest: The rescuer should have genuine interest in rescue work. He should not have any feeling of impressing people etc. Training: The rescuer should have undergone training which will help him in performing the rescue work efficiently and in safe manner. Initiative: The rescue operation is a very big and complex process. Thus, it is impossible to closely supervise each team member. Each must be able to see and plan what is needed at the movement and do accordingly. Versatility: Each situation or emergency is one of its kind. So the rescuer must be able to understand the problems and use the skills and knowledge to handle new situations. Cooperation: Rescue work involves lot of people. To make it successful, a good team effort is needed. Thus, co- operation with other team members is an important quality of the rescuer. Leadership qualities: All rescuers should have leadership qualities. They require it at various times. A rescuer having leadership qualities can make proper and safe use many more untrained people. Controlled fears: Rescuers must know what are his limitations. He should be aware of any fears he is having and should be able to control them. It is also important that the leader of a rescue team should know if any team member has fear of any kind. Some fears which commonly affect a rescuer should be identified and explained in the training programmes . Confidence: A rescuer must have confidence in himself and his acts. His appearance must instill faith and confidence in others also.

Rescue Plan A strategy or procedure, planned in advance, to retrieve safely a person who has fallen from an elevated work surface and is suspended in a full body harness, to include self-rescue or mechanically aided rescue. Major Stages Reconnaissance Every member of the rescue team must be trained in rescue reconnaissance. In most of the cases team leader does the reconnaissance but if he has deployed some person for conducting reconnaissance, then the person should take and report the observations back to the leader. Reconnaissance of the disaster area/site should result in an accurate assessment of : The number and location of casualties. Dangerous situations such as gas, leak electricity, overhanging walls, unsafe structural components or anything else which may endanger rescue workers or survivors. Access to the casualties. The extent and type of damage. Emergency services available and disrupted. Available resources, both personnel and equipment. An approximate analysis of the time, the task will take with available resources. Support agencies.

Rescue Plan Major Stage : Appreciation Process/Problem Solving Process It is a simple method of problem solving which involves logical assessment of the situation and the reconnaissance. It results in the formation of a workable plan. Experienced persons may use their experience and intuition also to make the rescue plan more effective. Steps in Problem Solving Define the problem: The problem to be solved should be clearly defined in terms of the task which is to be performed. If the problem is too large or complex to tackle easily, then it may be divided into a number of small elements, which are connected properly. State the aim: The aim is a clear picture of what the rescue team has to do in order to solve the problem. The aim should be clear brief and achievable. For example, one of the aims during an earthquake rescue operation can be, “to rescue the casualty from the basement floor.” Consider the factors: The factors to be considered in a rescue operation may include: Number and location of casualties, Time, Topography of the area, Weather, Available resources, both personnel and equipment, Support requirements and availability, Communication, Priority of tasks. Each factor should be considered and all the “ifs” and “ thens ” should be analyzed properly. Each factor should lead to some conclusions. Determine all possible solutions: Consider all possible solutions, that are practical, for achieving the aim. This is done by considering all the factors listed above. Decide on the best possible solution: At this stage one of the best possible solution is selected which takes into account all the factors. It is the solution with the most advantages and least disadvantages.

Rescue by Steps A six-phase process for rescue operation at a collapsed structure is given below which explains the rescue operation by steps. These six phases are recognized internationally and are used by rescuers world-wise Phase 1: Reconnaissance and Survey Phase 2: Elimination of utilities Phase 3: Primary surface search and rescue Phase 4: Exploration of all voids Phase 5: Access by selected debris removal Phase 6: Terminate by general debris removal. Acronym : REPEAT

Rescue Steps : R EPEAT Phase 1: Reconnaissance and Survey: After reaching the hazard site, it is difficult to conduct thorough reconnaissance and survey. During reconnaissance, question victims, witnesses and others who are able to provide information such as occupancy of the building, location of victims and potential hazards etc. Survey involves a visual inspection of the site and may identify the type and size of the structure, collapse patterns, possible hazards and location of victims etc.

Rescue Steps : R E PEAT Phase 2: Elimination of utilities (Risk Assessment and Control): It is one of the most important phases. It involves the assessment of risk and controlling them with the measures available to the rescuers. For example, barricading the site or shutting of power supply etc. I t is necessary to control all the possible risks as soon as possible otherwise it may result in more disaster.

Rescue Steps : RE P EAT Phase 3: Primary Surface Search and Rescue: The third phase include searching surface areas around the collapsed or damaged structure. Any injured person or lightly trapped person should be immediately attended. During the primary surface search, rescuers may become aware of victims located within voids or within damaged structures. The location of victims should be marked and reported to trained persons with appropriate equipment for safely extraction of victims.

Rescue Steps : REP E AT Phase 4: Exploration of all Voids: In this phase, specially trained and equipped rescuers explore those places which have been marked during primary surface search. All the places, where the trapped victims might have survived the collapses, are explored although there is no evidence of the presence of such victims. If possible, technical devices can also be used to know the location of the trapped victims.

Rescue Steps : REPE A T Phase 5: Access by Selected Debris Removal: Phase 5 involves the removal of selected debris for accessing the trapped victim. This requires specially trained personnel and equipment. As the time passes, the chances of survival of victims decrease. Thus, the rescue operation should be carried out speedily but safely. It is essential to locate all victims before starting phase 6.

Rescue Steps : REPEA T Phase 6: Terminate by General Debris Removal: Phase 6 involves the use of heavy plant and machinery to remove all the debris in an attempt to recover and account for all victims. This phase also involves the use of forensic processes to identify victims. It is important to note that the rescue operation must be completed without interruption until phase 6 is completed. Every person known or likely to have been in the structure must be accounted for. It is impossible to tell from external inspection whether victims buried in the debris will be alive or not. Thus, the effort should be continued to save lives, no matter how long it takes.

Safety in Rescue Operations The rescue operation involve lot of works which need skills like clearing of debris, operation of equipment, working in dangerous environment like fire and collapsed structure etc. These tasks if not properly carried out, may prove dangerous. Thus, safety in rescue operations is of main importance. It is also needed to observe and follow these safety measures strictly during the rescue operation. Training and exercises also. Most of these safety precautions are very basic and simple.

Basic Operations Regularly and carefully check the equipment both before and after the use. Ropes can wear and rot, batteries can corrode equipment, machinery can break down. Faulty equipment can cost lives. Immediately label the faculty equipment and send it for repair or replace it. Protect people at heights or depths with care and monitoring. Never ignore the safety limits. Control the emotions during rescue operations. These basic precautions help in protecting the casualty and the rescuer. Other types of safety measures are explained in the following articles.

CASUAL SAFETY The safety of casualties is of prime importance. Every effort is to be made to ensure that no harm should be done to the casualty during rescue operation. The injured persons should be given care and first aid immediately. They should be handled in a safer way and made comfortable. The damaged building parts or the debris should be handled such that no more injury is done to the people trapped inside Priority attention is given to the casualties depending on their condition. The safety measures should be discussed during the traini9ng and exercises along with the dummy casualties. The injured persons are sent to the hospitals by the ambulances or other vehicles. These vehicles should be driven by trained drivers.

EQUIPMENT SAFETY All equipment should be of standard quality and operated as per instructions. They should be operated by trained persons. While using power tools such as disc cutters or saws, the operator should wear safety goggles and gloves and take proper care to avoid jamming of blades. If the cutting operation is near the trapped casualty, the cutting blades should be directed away from the casualty body. Proper care is to be taken while load lifting operations to prevent total collapse or slippage or dropping. All rescue equipment should be checked before and after use.

Debris Clearance Earthquake Debris : Debris will be generated from damaged buildings, infrastructure, equipment, and personal belongings. Vegetative debris, boulders, and sediment may result from landslides. Term disaster debris generally refers to waste materials created by or in the aftermath of a natural or man-made disaster, such as: construction and demolition (C&D) waste from destroyed buildings; vegetative debris, soils, and sediment; rotting materials, such as food or dead animals (e.g., pets or livestock); damaged vehicles, consumer appliances, and electronic devices; and hazardous chemicals or products, including those released from commercial, industrial, agricultural, or residential sites.

Challenges in Managing Debris Volume Difficulty in separating contaminated waste Potential for limited participation by returning residents

Debris Management (FEMA Guidelines) Debris Category   Description   Factors That Can Affect Management Construction & demolition (C&D) waste Components of damaged or destroyed buildings, roads, and other man-made structures, such as lumber, gypsum wallboard, glass, metal, roofing material, tile, carpeting, pipe, concrete, asphalt, utility poles, wires, furnishings, and fixtures. The definition of C&D debris may vary between states and waste management agencies within a state. May contain materials that must be removed and handled in accordance with federal standards, such as asbestos-containing insulation or tiles or transformers containing polychlorinated biphenyls (PCBs). C&D waste may also be mixed with materials that affect whether the debris can be safely recycled, reused, or burned (e.g., lumber or wood products that are chemically treated or coated with lead-based paint or that contain termites). Municipal solid waste (MSW) Personal belongings and general household trash. May be generated in volumes that overwhelm existing landfill capacity or contaminate otherwise non-hazardous wastes. Vegetative debris Downed trees, branches, shrubs, and logs. May require immediate removal when they affect public access routes and critical infrastructure. Often generated in large amounts that can be substantially reduced by burning or chipping. Reduction and reuse options may be limited if contaminated.

Debris Management (Continued) Debris Category   Description   Factors That Can Affect Management Soil, mud, and sand Earthen material deposited on property and rights-of-way by floods, landslides, high winds, or storm surges. May be reused as fill on residential or agricultural land. Options for reuse may be limited if contaminated with sewage, pesticides, fertilizers, or other chemicals that make it unsafe for reuse. Putrescibles Materials that will rot or decay quickly, such as fruits and vegetables, meats, dairy products, and other produce from grocery stores, restaurants, schools, hospitals, and residences. It can also include animal carcasses, such as pets or farm animals. May be composted or rendered to reduce volume, but must be collected and managed quickly to avoid attracting disease vectors, such as rodents and flies. If not managed quickly, putrescibles may contaminate otherwise benign waste streams. White goods Destroyed or discarded household appliances such as refrigerators, freezers, air conditioners, washers, dryers, ovens, ranges, heat pumps, water heaters, and dishwashers. Can generally be recycled but may contain substances that must be removed according to federal law (e.g., PCB capacitors, ozone- depleting refrigerants, or compressor oils). Refrigerators may be contaminated with putrescibles that must be removed. Proper management may be challenging when white goods are generated in tremendous numbers. Vehicles and vessels Cars, trucks, and boats that are damaged, destroyed, or abandoned as a result of the incident. Can generally be recycled if title and ownership issues are addressed and hazardous fluids or materials (such as motor oil, gas and gas tanks, lead-acid batteries, tires, airbags, and mercury switches) are drained or removed. Household hazardous waste(HHW) Household products that contain corrosive, toxic, ignitable, or reactive ingredients, such as motor oil, automobile batteries, paints and solvents, household cleaners and drain openers, swimming pool chemicals, pesticides, and compressed gas tanks (such as propane and oxygen). The presence of HHW can increase the overall cost of waste management if it is not collected and managed separately. States generally prefer to do so, but it can become mixed with and contaminate relatively benign household wastes. Electronic Waste (e-waste) Computers, monitors, televisions, printers, stereos, DVD players, and telephones. States generally separate electronic waste for recycling because it often contains heavy metals such as lead, chromium, cadmium, mercury, and zinc and brominated flame retardants. Infectious waste Waste capable of causing infections in humans, such as contaminated animal waste, human blood and blood products, medical and pathological waste, and discarded sharps (needles, scalpels, or broken medical instruments). It may become mixed with and/or contaminate otherwise benign waste and pose a risk to waste handlers unaware of its presence. Commercial or industrial hazardous waste May include petroleum or other hazardous substances that pose significant risk to human health, safety, or the environment released from above ground or underground storage facilities or containers (tanks or drums) or from commercial or industrial facilities (e.g., gas stations or dry cleaners). May become mixed with and/or contaminate otherwise benign waste. May contaminate surface or groundwater if not quickly contained, cleaned up, and properly managed.
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