PURPOSES: This study devotes its energies to estimate greenhouse gas emissions for types of horizontal highway designs. METHODS: This paper suggested two types of road scenarios, scenario 1 is made by the lack of road design consistency. Beside scenario 1, scenario 2 is made by good road design. For comparisons of greenhouse gas emissions, driving simulator was used. RESULTS: Emission rates of road scenario 1 are 1.4 times higher than scenario 2 in the driving simulator. CONCLUSIONS : This study may have important implications for contributing to the application of road alignment technology for reduction of greenhouse gases as quantifying the correlations between greenhouse emissions and various road alignments. Consequently, this study will help road designers determine which roads are best alternatives in the process of choosing the roads in the future in terms of environmental benefits.

• 정상민(주식회사 건영이엔씨 대표·서울시립대학교 교통공학과 박사과정) | Chong Sang min
• 이종학((재)한국산업관계연구원 수석연구원) | Lee, Jong-hak 교신저자
• 최재성(서울시립대학교 교통공학과 교수) | Choi, Jaisung
• 김종민(한국건설기술연구원 수석연구원) | Kim, Jong-min
• 노관섭(한국건설기술연구원 선임연구위원) | Noh, Kwan-sub