International Journal of Latest Technology in Engineering, Management & Applied Science (IJLTEMAS) Volume VII, Issue IV, April 2018 | ISSN 2278-2540 www.ijltemas.in Page 86 Modern Techniques for Enhancing the Safety and Security in Airports N. Sumathi, R .Sowmya, R .Harihara Sudhan Dept of Aerospace Engineering, Amrita School of Engineering, Coimbatore Amrita Vishwa Vidyapeetham, India Abstract: - A comprehensive study is conducted to explore the safety and security systems implemented in airports and their advancements in terms of technology. In addition to these observations, a critical approach is followed to recognize the extent of success reached and how much more efficiency and functional perfection achieved in today’s world. An insight is given into the existing precaution measures followed in the airports to avoid hazard any time. Many budding technologies are capable of preventing illegal activities, which can forecast natural hazards that can help reducing pollutions caused by airport premises. I. INTRODUCTION ncrease in air travel drives the need for well-organized safety and security systems.Terrorism and crimes have encouraged worldwide governments to make airport security stricter and keep it as a higher priority. Airport safety and security is important because air transport full of passengers attracts the bombers and hijackers and also high chances of accidents.Terrorism is a major problem in air transportation. Hijacking and bombings became the method of choice for subversive by the militant organizations around the world. The security at airports must be firm and strong. These airport safety and security systems comprise infrastructure, regulations, software and technology for better monitoring, detection and risk prevention. II. AIRPORT SAFETY The worst year on record of air accidents is 1929 killing 69 people. The safest year for commercial aviation is 2017for bothnumber of fatal accidents and fatalities. The common reasons for fatal accidents are:  Uncontrolled Flight into Terrain  Improper Ground Safety  Loss of Control in-Flight  Lack of capacity in handling flight operations  Lack of Runway Safety Crucial safety measures Fire There are multiple types of fire extinguishers based on the type of flame that starts and spreads. The different class of fires are:  Ordinary combustibles such as wood and paper.  Flammable and combustible liquids and gases.  Energized electrical equipment.  Combustible metals.  Cooking Oils and Fats. The different types of fire extinguishing agents used are  Primary aircraft fire extinguishing agents like liquid foam.  Supplementary aircraft fire extinguishing agents that mostly containfluoroprotein foam.  Other aircraft fire extinguishing agentslike wetting agents. These portable fire extinguishers require periodic inspection and proper maintenance and staff also have to be trained and educated on fire extinguishers. Airports also have "Fire brigades". The Fire brigade is a group of employees who are very well trained in firefighting operations. In addition to these measures, there arenumber of restrictions imposed on passengers and airport staff in smoking, bringing flammable objects, switching off computers after use etc. Airside safety The role of Airside Safety and Operations Department is to carry out regular inspections of the movement area. Athree- level inspection system is effective to ensure high standards of safety. LEVEL 1: Inspections coveringthe movement zones adjacent to the airport premises LEVEL 2: Thorough inspections are carried out in different airside departments LEVEL 3: This level consists of performing audit so that the ascending inspection levels are of required standard. Landside safety Passenger Evacuation: I