Artificial Neural Network Modeling of Healthy Risk Level Induced by Aircraft Pollutant Impacts around Soekarno Hatta International Airport

Abstract

Aircraft pollutant emissions are an important part of sources of pollution that directly or indirectly affect human health and ecosystems. This research suggests an Artificial Neural Network model to determine the healthy risk level around Soekarno Hatta International Airport-Cengkareng Indonesia. This ANN modeling is a flexible method, which enables to recognize highly complex non-linear correlations. The network was trained with real measurement data and updated with new measurements, enhancing its quality and making it the ideal method for this research. Measurements of aircraft pollutant emissions are carried out with the aim to be used as input data and to validate the developed model. The obtained results concerned the improved ANN architecture model based on pollutant emissions as input variables. ANN model processes variables-hidden layers-and gives an output variable corresponding to a healthy risk level. This model is characterized by a 4-10-1 scheme. Based on ANN criteria, the best validation performance is achieved at epoch 28 from 34 epochs with the Mean Squared Error (MSE) of 9 × 10 −3. The correlation between targets and outputs is confirmed. It validated a close relationship between targets and outputs. The network output errors value approaches zero. Further research is needed with the aim to enlarge the scheme of the ANN model by increasing its input variables. This is one of the major key defining environmental capacities of an airport that should be applied by Indonesian airport authorities. These would institute policies to manage or reduce pollutant emissions considering population and income growth to be socially positive.

Ispersion model and impact assessment of Landing and Take-Off (LTO) activity at New Yogyakarta International Airport using aermod

“…Terrain data was obtained from SRTM3 and processed by AERMAP [4]. The aircraft data traffic was supplied by PT Angkasa Pura I and the engine type of various aircraft was obtained from an article related to atmospheric modeling of LTO cycles around Soekarno Hatta Airport [3]. The ICAO Engine Emissions Databank (EEDB) is used as a reference for aircraft emission factors [2], while the emission factors for land transportation refer to the Ministry of Environment Regulation Number 12 of 2010 About the Implementation of Air Pollution Control in the Regions [4].…”

“…The LTO cycle comprises 4 operating modes: approach, taxi (taxi-in and taxi-out), take-off, and climb-out, as shown in Figure 1. Thrust settings and time in mode (TIM)shown in Table 1, affect aircraft fuel consumption and emission factors for each LTO cycle mode [1]- [ 3].…”

“…Besides the LTO cycle, there are other activities at the airport, like transportation traffic around the airport. These activities emit various types of pollutants, such as NO2, CO, and hydrocarbons [3]. The LTO cycle and ground transportation traffic cause an accumulative impact on air quality.…”