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Abstract. The purpose of research were (1) a conceptual, functional model designed and implementation for spatial airports, (2) a causal, flow diagrams and mathematical equations made for airport activity, (3) obtained information on the conditions of space and activities at airports assessment, (4) the space and activities evaluation at airports based on national and international airport services standards, (5) options provided to improve the spatial and airport activities performance become the international standards airport. Descriptive method is used for the research. Husein Sastranegara Airport in Bandung, West Java, Indonesia was study location. The research was conducted on September 2015 to April 2016. A spatial analysis is used to obtain runway, taxiway and building airport geometric information. A system analysis is used to obtain the relationship between components in airports, dynamic simulation activity at airports and information on the results tables and graphs of dynamic model. Airport national and international standard could not be fulfilled by spatial and activity existing condition of Husein Sastranegara. Idea of re-location program is proposed as problem solving for constructing new airport which could be serving international air transportation.

The aim of the research are making conceptual, functional model and implementing land suitability evaluation, creating database management system of land suitability evaluation, producing thematic map of land suitability evaluation for housing and residential based on GIS, satellite imagery and DTM. Research instruments are measurement and mapping tools, questionnaires, observations, computer hardware, and software. Primary data were taken by the physical, chemical and biological environment. Secondary data taken are maps of soil texture, soil drainage, soil type, erosion, slope, the effective depth of soil and flooding. Spatial analysis is used to superimpose layers, using GIS software. The thematic map which was producing land suitability evaluation for housing and residential based on GIS, satellite imagery, DTM from GIS software and satellite imagery from the internet could be more accurate and effective than conventional and analog methods.

The education environment in Indonesia has actually been implementing online distance learning methods for a long time, especially at universities. Several universities in Indonesia have started implementing the hybrid learning method for their students, which combines face-to-face lectures in classrooms with online learning through application provided by the University. However, in the conditions of the Covid-19 pandemic, the whole learning method changed to an online learning method, which in its implementation, the use of online learning faced many challenges. Research is needed with a comprehensive qualitative approach, and exploration to find out the effectiveness of the implementation of online lectures through the platforms provided by the University and other platforms during the Covid-19 Pandemic. The results of the study are useful for improving and aiming at evaluating the strategy that has been implemented previously based on the results of research related to the effectiveness of online learning methods during the covid-19 pandemic that needs to be anticipated by universities to become a center of excellence.