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The economic growth will increase the transportation sectors roles in supporting the achievement of development goals. But transportation activities have negatives impact, where one of the negative impact of transportation activities is the high levels of pollutants due to emissions or release of smoke from motor vehicles. This study aims to determine the capability of green open space that exists, especially in the ability of trees and shrubs in absorbing carbon monoxide and carbon dioxide emissions generated by motor vehicles operating in Balai Kota Makassar. The research is qualitative. All data required for the analysis of the research are primary data or data obtained directly in the field. Primary data in this research are data obtained by counting the number of vehicles and the area cover by vegetation canopy. In this research, zonation system is applied because each area has different green open space requirement based on the emission load generated by motor vehicles passing in the area so that the research location is divided into 4 zones. To calculate the vehicle’s emission, it applies the equation of emission strength, and to calculate the emission absorption by vegetation is use vegetations area covers. The results showed in zones 1, zone 2 and zone 3, green open space existing already can absorb 100% carbon dioxide emissions and carbon monoxide. But in zone 4, green open space existing cannot absorb 100% carbon dioxide emissions and carbon monoxide.

The Hasanuddin University Faculty of Engineering in Gowa is the largest engineering campus in South Sulawesi. The lecture activities are very complex which are not only teaching and learning but also households and offices activities. Therefore, it is important to know the mapping of existing carbon footprint on the campus due to the complexity of the campus activities. The purpose of this study is to determine the level and mapping of the carbon footprint on campus. The method used is to halve emissions into primary and secondary carbon footprint emissions. The results of this study indicate that the greatest emissions is generated from the secondary carbon emissions which is electricity consumption amounting to 1,315,429.63 KgCO2/Year, and the lowest emissions is resulted from the use of paper at 49.39 kgCO2/Year. For the buildings the highest CO2 emissions is generated from the Architecture Department building at 289,176.26 KgCO2/year and the lowest CO2 emissions is generated from the Naval B Department building at 20,599.20 KgCO2/year. The mitigation scenario in reducing CO2 emissions effectively is by implementing Earth Hour for 1 hour every month which can reduce electricity consumption by 582,541.78kWh/Year and CO2 emissions at 164,428.70 KgCO2/year. The effective scenario to decrease waste is by implementing 3R with 2% waste reduction which is 167,332.79 Kg/Year and emissions CO2 are 4,772.41 KgCO2/Year.

The purpose of this study was to examine the relationship between vehicle distance (gap) formed by the vehicle volume. For this reason, in this study, there were 16 (sixteen) roads that were used as objects of research. To get the values from the gap variable, the VISSIM software is used in the data processing. In the use of this software calibration and validation are done by trial and error to produce simulation results that can replicate the actual traffic conditions. The results of this study indicate that statistically from the coefficient of determination and F test conducted concluded that there is a significant relationship between vehicle volume and gap.

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Jalan Nasional yaitu ruas Bomberai-Purwata di Kabupaten Fak-Fak tepatnya di KM 138+500 sampai dengan KM 230+660 dimana dengan kondisi daerah datar. Angka kecelakaan yang terjadi pada lokasi penelitian ini cukup signifikan dari data Kepolisian Resort Kabupaten Fak-Fak sebanyak 50 kasus selama 6 tahun dari tahun 2012 sampai 2017. Dari tahun ke tahun angka kecelakaan yang terjadi cukup merata walaupun ditahun terakhir mengalami penurunan seiring dengan kesadaran/kehati-hatian mengendarai kendaraan dan juga dari tahun-ketahun geometrik jalan mengalami perbaikan dari pihak Ditjen Bina Marga. Oleh karena itu, penelitian ini bertujuan untuk  mengetahui karakteristik kecelakaan, lokasi rawan kecelakaan, dan audit keselamatan insfrastruktur jalan tersebut. Tahapan awal dilakukan analisis karakteristik, selanjutnya dilakukan analisis tingkat kecelakaan untuk mengetahui lokasi rawan kecelakaan dengan berdasarkan banyaknya kejadian kecelakaan terhadap volume lalu lintas. Setelah itu akan dianalisis dengan pendekatan EAN. Dari analisis tersebut bertujuan untuk mengetahui blackspot pada ruas Jalan Bomberai-Purwata. Hasil audit keselamatan jalan dari aspek harmonisasi perlengkapan jalan dalam kategori sangat berbahaya. Variabel-variabel dari kondisi jalan dan lingkungan jalan yang berpengaruh/significant terhadap terjadinya kecelakaan di ruas jalan arteri (Non Tol) Nasional yaitu hubungan manusia dengan jalan dan lingkungan, hubungan manusia dengan kendaraan dan hubungan kendaraan dengan jalan dan lingkungan.