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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.

The purpose of the study (1) design a conceptual model of spatial information during the rainy season and dry season to anticipate floods and drought, (2) create a functional model of the results of modeling conceptual, (3) implements spatial information during the rainy season and dry season to anticipate floods and droughts, Method of solving the problem is with descriptive and analytical techniques used spatial analysis and matrix. The conclusion of the study (1) the conceptual model results matrix analysis concluded basic map that used to be a small-scale (scope of West Java province) and refers to the raw information used by BPLHDs (Environmental Management Agency Region), (2) the functional model results matrix analysis concludes the number of components of spatial information to be presented is the 8 components of spatial information point (point), four components of spatial information line (line), 8 components of spatial information area (polygon) and 12 components of spatial information text (annotation), (3) implementation of the model results matrix analysis produces unity polygon graphics information to the boundary of the village, sub-district boundaries, county boundaries, the provincial boundaries, bodies of water catchment areas, wind roses, land use stored in the record and file levels. Unity of graphic information point for the station rainfall and bodies of water that is stored in the record and file levels. Unitary information line for a body of water, Isohyets, isobars and isotemp stored in the record and file levels.

<pre><span class="y2iqfc"><em><span lang="EN-US">This article aims to evaluate group learning in the field of Civil Engineering and environmental science in the 21^st-century learning system. The 21^st-century learning system is designed for the 21^st-century generation to keep up with the latest technological developments. Survey and mapping learning systems in pandemic conditions have adopted and implemented 21^st-century learning systems, but detailed and precise information has not been studied. The research method used is the descriptive quantitative method. The participants of this study are Civil Engineering students. The pretest and posttest questions were used to collect data related to the comprehension test by giving a test via the google form link. The results showed an increase in understanding of the 21^st-century learning system. The value of Civil Engineering students' knowledge about the 21^st-century learning system increased. This illustrates that delivering material about the 21^st-century learning system is quite successful. Thus, there is a need for advanced research on 21^st-century learning related to personnel, equipment, and funding.</span></em></span><em></em></pre>

The objectives of research were (1) to design conceptual model and to build multi-criteria evaluation for vocational school zone based on geographic information system (GIS), (2) creating database management system of vocational school zone based on GIS, (3) producing thematic map of vocational school zone based on GIS. The research is using descriptive method. The research population is physical, chemical, biological and environmental conditions. The sampling technique is purposive. Research instruments are measurement and mapping tools, questionnaires, observations, computer hardware and software. Primary data were taken by physical, chemical and biological environments. 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.