The unpleasant air quality surrounding Incheon airport highways which is called gateways of Korea is caused by various odor emission sources such as Sudokwon landfill and Seobu industrial complex. In this study, the air quality near Incheon airport highways was investigated. Odors could be confirmed from various sources such as Sudokwon landfill and Jumul industrial complex, and hydrogen sulfide and acetaldehydes was detected regionally. Based on this study it was suggested to manage odor controlled regions and to provide the more information to make more pleasant air quality in the studied area.

도로-포장시스템의 성능은 구성재료 및 기계적 물리화학적 하중에 대한 재료의 민감도에 매우 관련이 깊다 그러나 지금까지 오염원 침투에 따른 도로-포장시스템의 물리적 화학적인 영향에 대한 연구가 깊이 있게 다루어지지 않았다. 이에 대한 연구를 위해 본 논문에서는 도로-포장시스템과 오염원 및 주변환경적 요인과의 상호작용에 대한 고찰이 선행적으로 다루어졌다 도로-포장시스템으로 오염원은 1) 포장표면으로 직접 침투하거나, 2) 도로 경계 면으로 침투하거나 3) 물리적-화학적-생물학적 변화에 의한 흙 사이로의 간접 침투로 이루어진다. 오염원침투가능성은 재료종류. 입자크기. 기후 및 지질학적 특성에 관련이 깊다 도로-포장시스템의 안정성 및 성능 또한 오염원 침투에 의해 영향을 받는다 이와 같은 특성들을 고려 할 때 도로 설계 시공 및 유지보수와 관련된 일을 하는 공학자들은 이 문제를 심각하게 고려하여야 할 것이다.

The airborne chlorides environment by de-icing salts of the Suam road tunnel in motorway were examined. It was found that higher airborne chlorides were detected inside road tunnel than outside. Therefore, there is a need to appreciate that RC structures inside tunnel might be exposed to salt attack environment.

Roadside native vegetation provides important habitat for plants and animals, and provides visual amenity and beauty for drivers and rural areas. In particular, native wildflowers create and maintain attractive landscaping and scenic vistas while help protect and restore the natural environment. However, it is lacking in government policies and guidelines about using native wildflowers for roadside vegetation and alien invasive plants are a major threat to our environment. The purpose of this study is to review the regulations and programs for roadside vegetation, especially native wildflowers in USA in order to learn lessons about developing wildflower policies in Korea. A summary of results follows: (1) the goals of roadside vegetation have been shifted from beautification for pleasant driving experience to sustainable and economical maintenance. (2) Various funds and laws by federal and local government are essential for native wildflower planting and roadside enhancement. (3) Ongoing projects on seed collection and seed banking of native plants are conducted by wildflower research centers to conserve and propagate endangered plants. (4) Recognizing that wildflower viewing holds tremendous potential, increasing local governments try to grow wildflower tourism for economic benefits. In conclusion, we should establish a long-range plan and regulations on roadside wildflowers planting in order to create safe and sustainable transportation corridors in Korea. In addition, more research on wildflower habitat and propagation should be warranted and landscape architects should play a definitive role in providing pleasant driving experiences and promoting wildflower tourism.

The airborne chlorides environment by de-icing salts of the Suam road tunnel in motorway were examined. It was found that higher airborne chlorides were detected inside road tunnel than outside. Therefore, there is a need to appreciate that RC structures inside tunnel might be exposed to salt attack environment

The airborne chlorides environment by de-icing salts of retaioning wall in motorway were examined. It was found that in the retaining wall, height of 14m, the airborne chlorides tend to be decreased by height ranged between 81.0-73.8%.

In the current concrete structure of the highway is still the major problem most of concrete deterioration caused by the freeze-thaw and de-icing salt, which is of issues that are not completely resolved. In particular, a single freezing event does not cause much harm, durability of concrete under multi-deterioration environment by repeated freeze-thaw and de-icing salt is rapidly degraded and reduce its service life. In this study, to considering environmental characteristics when design and construction of concrete structures, the exposure environmental guidelines were established by investigation the application rates of de-icing salt, temperatures and snowfall characteristics during five years (2004∼2008) by regions. Also, damage condition and chloride content of the structural at regions of moderate and severe environmental exposures were investigated.

Soil is the most important factor in natural environment for bio-diversity. Urbanization and development of city devastate urban soil by the fraternization of green network and run off pollution. In these facts, preservation of soil is the main issue in maintain of quality urban environment. In order to handle this issue, the gold network that link fragment soil patches is considered in maintain quality soil. This study researched the infiltration Treebox design technique based on the Low Impact Development. This technique suggest reduction of impervious area of the soil due to urbanization. The main concept of this study is encourage more permeable surfaces in urban area by using a infiltration planter. The function of the planter is hold run off as much as possible from intensive rainfall, and utilizes it in drought season. Also, this planter provides fertile soil for organism habitat by keeping appropriate moisture supplying.

To investigate thermal environment and effect of clean-road system over a broad way, we conducted the filed meteorological observation during 12~13 August 2014. The clean-road system was employed over a part of the broad way of Dalgubul(Dalgubul-Daero) by Daegu Metropolitan city in 2011. The clean–road system in general is operated two times(4 am, 2 pm) during summertime. In case of scorching alert, the system is operated 3 times a day(4 am, 2 pm and 4 pm). To evaluate the present thermal condition and the improvement effects due to the system, we analyzed the time variation of discomfort index and WBGT(wet-bulb and globe temperature). WBGT was more than 25 during 8 a.m. ~ 9 p.m. And discomfort index was more than 75 during 8 a.m. ~ 11 p.m. The thermal improvement effect of the clean-road system was restrictive during daytime.

산업혁명 이후 연료의 사용이 늘어 CO2 배출량이 급증하여 지구온난화로 인한 다양한 환경변화를 야기해 전 세계가 기후 변화의 위협에 직면해 있다. 국내 온실가스 총 배출량 중 건설 분야 비중은 약 42%로 높은 비중을 차지하고 있으며, 이 중 도로 분야는 약 16%의 비중을 차지하고 있다. 건설재료 및 자재는 제조 시 대부분 화석연료를 사용하므로 CO2 발생량이 매우 많다. 이와 같은 상황을 고려하여 도로 분야에서도 점차적으로 환경 친화적 건설에 대한 중요성이 부각되고 있다. 최근 국내에서는 도로건설로 인하여 발생되는 환경문제를 해소하기 위한 방안으로 친환경 도로건설을 이루기 위하여 다양한 포장 공법이 개발되고 있으나 소음저감, 미끄럼저항 증대 또는 내구성 강화 등의 기능성 측면만을 고려하여 연구가 진행되어졌을 뿐 도로 이용자 측면에서의 친환경성을 확보하고자 오염물질의 저감 및 화석자원의 고갈 등에 대한 근본적인 환경문제의 해결은 미비한 실정이다. 본 연구에서는 친환경 도로포장의 재료로 슬래그 골재를 사용하였고, 슬래그 골재의 입도 및 기초물성 측정, 혼합물 제작을 수행하였다. 슬래그 골재는 다공성 재질로 일반 골재의 흡수율 기준보다 높게 측정되었고, 혼합물 제작 시 조건을 다르게 하여 평가를 진행하였다. 슬래그의 밀도 차이로 동일 중량임에도 두께 얇고 일반 골재와 혼합시 두 재료의 밀도가 다르기 때문에 통과중량백분율 적용이 어려운 것으로 확인되었다. 밀도가 다른 두 재료의 혼합을 위해 체적 단위로 환산한 배합비를 적용하여 배합설계를 수행하였다. 두 종류로 제작된 혼합물의 비교를 통해 슬래그 골재 사용의 극대화 한 재활용 포장 기술의 적용 및 고부가가치화 목적을 두어 연구를 진행하였다.