ABSTRACT
Aircraft boarding has a direct influence on the operational cost of an airline. Therefore it has become imperative for the airline industry to find better boarding methods that minimize the boarding time thereby reducing the turn-around time of flights. Agent-Based Simulations (ABS) offer a way to investigate optimal boarding strategies. Complex interactions between multiple passengers during the process of boarding can be modelled using ABS to discover the factors causing most delays and to compare the performance of suggested new models. This study performs a critical review of 12 studies that investigate the aircraft boarding problem using ABS to compare their results. The study classifies the reviewed papers into three groups based on the objective of the investigation: (1) studies that evaluate the efficiency of various boarding strategies, (2) studies that evaluate new methods for aircraft boarding, and lastly, (3) studies that evaluate the impact of COVID-19 restrictions on aircraft boarding. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.
ABSTRACT
Aircraft boarding has a direct influence on the operational cost of an airline. Therefore it has become imperative for the airline industry to find better boarding methods that minimize the boarding time thereby reducing the turn-around time of flights. Agent-Based Simulations (ABS) offer a way to investigate optimal boarding strategies. Complex interactions between multiple passengers during the process of boarding can be modelled using ABS to discover the factors causing most delays and to compare the performance of suggested new models. This study performs a critical review of 12 studies that investigate the aircraft boarding problem using ABS to compare their results. The study classifies the reviewed papers into three groups based on the objective of the investigation: (1) studies that evaluate the efficiency of various boarding strategies, (2) studies that evaluate new methods for aircraft boarding, and lastly, (3) studies that evaluate the impact of COVID-19 restrictions on aircraft boarding. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.
ABSTRACT
Several authorities require individuals to be vaccinated with WHO-approved vaccines to allow cross-border travel or access to public areas. Recently vaccination certificates have become crucial in curbing the spread of the corona virus. Therefore, it is crucial to ensure the integrity and authenticity of vaccination records. A secure mechanism is required to maintain the immunization records and issue an immutable vaccination certificate to individuals that may be used as a passport for uninhibited movement. We propose a blockchain-based solution that issues verifiable and trustworthy vaccination certificates for not just COVID-19 vaccines but also other diseases. Our proposed model reduces the time required to retrieve vaccination status. The solution is scalable due to its simplicity as it does not require multiple participants on the network for its operation. Moreover, the system can be easily integrated with existing enterprise applications for its functionality. © 2022 IEEE.