Urban crime is unplanned change from urban development processes. Understanding of urban crime is necessary for crime prevention and increase urban living quality. The geographical approach in urban crime analysis can analyze crime pattern using a geographic information system, also investigate a correlation between crime and environmental condition. This research is conducted to analyze the relationships between urban crime and urban accessibility in Sumur Bandung as the region with the highest crime in Bandung City. Urban crime pattern can be determined using geographic information systems through kernel density estimation, whereas urban accessibility is obtained via network indices methods. The correlation between urban crime pattern and urban accessibility is determined from statistical tests. The results show there is a significant positive relationship between urban crime and urban accessibility in Sumur Bandung Sub-District. Urban crime pattern is concentrated in Braga and Babakan Ciamis. Crime will increase in a more accessible area, thus crime prevention effort through physical access controlling regulation in the urban region.

Padang are subduction plate zone between Hindia-Austalia and Eurasia, its about 200 km from west off the coast of Padang. This condition makes Padang on high risk on dealing natural disaster issue such as earthquake which triggered landslide that cuts road in Padang and create chaos for people around. Geography are needed for student to acknowledged the things that happen before and after disaster and called disaster mitigation to create human behavior when such disaster happen around them, especially for student. Research conducted in public and private high school in Padang. Samples takes 11 schools picked randomly using random sampling. Research being process using descriptive research. And the results are students in Padang did not aware the importance of learning about migitation disaster for now. It means with a lot of things happens, students didn't prepare their self in order to prevent any huge damage of disaster due to lack of information about it. When quisioner being spread around the student it was found out that they feel hesitant on behavior during migitation disaster. Therefore it is really important for teacher to inform, teach, train and create student's behavior to minimizing any risk before, during and after earthquake and landslide happens.

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Kerapatan vegetasi merupakan presentase suatu spesies vegetasi atau tumbuhan yang hidup di suatu luasan tertentu. Kerapatan vegetasi salah satunya dapat diketahui dengan menggunakan teknik NDVI. Teknik yang dapat digunakan untuk keperluan menganalisis vegetasi. Informasi data kerapatan vegetasi, luas lahan, dan keadaan dilapangan dapat dideteksi dari penginderaan jauh. Penelitian ini bertujuan untuk untuk mengetahui hasil identifikasi kerapatan vegetasi daerah Kabupaten Pangandaran menggunakan metode klasifikasi terbimbing minimum distance dan menguji hasil interpretasinya menggunakan confussion matrix. Salah satu manfaat informasi data kerapatan vegetasi ini ialah dapat memberikan gambaran mengenai ketersediaan ruang terbuka di Kabupaten Pangandaran. Klasifikasi kerapatan vegetasi pada citra Landsat 8 dengan kombinasi RGB 753 menghasilkan warna ungu dengan yang berarti sangat rapat, oranye yang berarti rapat, kuning yang berarti cukup rapat, hijau dengan vegetasi jarang, dan biru yang berarti vegetasi sangat jarang. Total hasil akurasi pada confussion matriks bernilai 64% yang berarti tingkat akurasi peta cukup rendah karena biasanya nilai yang diterima dan diharapkan itu lebih dari 85%.Hal ini dikarenakan oleh keadaan di lapangan yang dinamis karena sebagian besar kerapatan vegetasi di lapangan berkurang akibat pengalihfungsian lahan.

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