In South Korea, the level of Highway Pavement Management System (HPMS) was developed since early 2000. During this time numbers of professional pavement condition monitoring equipment were developed and applied in the actual field. One of the remarkable results is 3D Pavement condition Monitoring profiler vehicle (3DPM) designed and developed in Korea Expressway Corporation Research Division (KECRD). Thanks to this equipment, The surface condition of current pavement can successfully be monitored and proper following management strategy cab be established. However, the inner condition of pavement layer cannot be monitored dur to limitation of 3DPM equipment. In this paper, Bending Beam Rheometer (BBR) mixture creep test was performed to verify the effectiveness of current 3DPM equipment. It was found that the current 3DPM equipment has reasonable feasibility on surveying pavement condition.

Evaluation of low temperature performance of asphalt mixture is significant not only for mitigating transverse thermal cracking but also for preventing potential traffic accidents. In addition, the engineers in pavement agency need to inform the proper pavement section where urgent management is needed. Since early 2000, Korea Expressway Corporation Research Division (KECRD) developed an 3D Pavement condition Monitoring profiler vehicle (3DPM) to survey expressway pavement surface condition precisely. The management of whole expressway network became more precise, effective and efficient than before due to application of 3DPM and HPMS. One thing recommended is: performing extensive mechanical test and corresponding data analysis work procedure to further strengthen the feasibility of current 3DPM approach and HPMS. In this paper two activities were considered: first, the pavement section where the urgent care is recommended is selected by means of 3DPM approach. Then asphalt mixture cores were acquired on that specified section then low temperature fracture test: Semi Circular Bending (SCB) test, was performed. The mechanical parameters, energy release rate and fracture toughness were computed then compared. It is concluded that the current 3DPM approach in KEC can successfully evaluate and analyze selected pavement condition. However, more extensive experimental works are needed to further strengthen the current pavement analyzing approaches.

PURPOSES : The evaluation of the low-temperature performance of an asphalt mixture is crucial for mitigating transverse thermal cracking and preventing traffic accidents on expressways. Engineers in pavement agencies must identify and verify the pavement sections that require urgent management. In early 2000, the research division of the Korea Expressway Corporation developed a three-dimensional (3D) pavement condition monitoring profiler vehicle (3DPM) and an advanced infographic (AIG) highway pavement management system computer program. Owing to these efforts, the management of the entire expressway network has become more precise, effective, and efficient. However, current 3DPM and AIG technologies focus only on the pavement surface and not on the entire pavement layer. Over the years, along with monitoring, further strengthening and verification of the feasibility of current 3DPM and AIG technologies by performing extensive mechanical tests and data analyses have been recommended. METHODS : First, the pavement section that required urgent care was selected using the 3DPM and AIG approaches. Second, asphalt mixture cores were acquired from the specified section, and a low-temperature fracture test, semi- circular bending (SCB) test, was performed. The mechanical parameters, energy-release rate, and fracture toughness were computed and compared. RESULTS : As expected, the asphalt mixture cores acquired from the specified pavement section ( poor condition – bad section) exhibited negative fracture performances compared to the control section (good section). CONCLUSIONS : The current 3DPM and AIG approaches in KEC can successfully evaluate and analyze selected pavement conditions. However, more extensive experimental studies and mathematical analyses are required to further strengthen and upgrade current pavement analysis approaches.

본 연구는 정보를 가공하고 조직화하는 제작자 중심에서 시각적 요소 활용과 디자인 사고의 과정을 알아보고자 하였다. 이를 위해 자크 버틴(JacqouesBertin)의 정보의 시각화 요소, 그래픽 요소를 정리하였다. 더불어 인포그래픽의 편집은 내용과 구성에 따라 시각적 요소를 적절히 배분하고 적용하는 관점과 틸(Teal)의 “디자인 사고란 확산적 사고를 기반으로 가능성을 도출하여 해결책을 찾는 사고법”이라는 것을 통해 인포그래픽 제작의 시각적 요소를 활용하기 위한 과정을 디자인 사고 중 하나라는 관점을 가진다. 사례연구에서 정보의 가공과 시각화 단계의 결과물을 대상으로 회상적 보고 중 하나인 리뷰의 방식을 통해 확인하였다. 그 결과 타이포는 사용자에게 주목성을 이끌고, 아이콘 역할을 하여 세부적인 설명글을 이끌어주는 요소로, 평면도형은 정보의 내용을 구분 지어주는 요소와 시각적 저해요소로도 활용되었다. 일러스트레이션은 편집 레이아웃에서 단순한 요소와 은유적으로 표현하는 요소로 사용하는 경우도 있었다. 색상은 정보의 내용을 충분히 이해하지 못한 상황에서 인근한 요소들의 색상, 정보의 의미를 반영한 색상이 표현되기도 하였다. 개념적 정보가 시각화 되는 과정에서 디자인 요소의 활용과 편집의 복합적인 개념이 작용하겠지만 정보가 가지는 개념적 내용이 효율적으로 전달되어야 할 것이다. 시각적 표현의 결과물이 정보전달의 요소라고 할 때 디자인 제작 단계에서 디자인 사고에 대한 연구를 통해 정보의 조직화 시각화에서 발생하는 오류의 최소화가 이루어 질 수 있을 것으로 본다.