Southeast Asia has become a key area for the development of the “Belt and Road’ initiative (BRI). At present, among the six economic corridors planned by the BRI, Southeast Asia has covered two of them – the China-Indochina Peninsula Economic Corridor and the Bangladesh-China-India-Myanmar Economic Corridor. In the meantime, Southeast Asia is also an important part of ”21st Century Maritime Silk Road“ initiative, and thus can been considered as a sample of demonstration for the globalization strategy of the BRI. This study finds that in recent years, China-invested infrastructure and connnectivity building (particularly the railway constructions) have been growing fast in Southeast Asia. In addition, a number of China-ASEAN industrial cooperation zones have been established. Together with an increasing number of enterprises settled in these zones, transnational supply chains have begun to take shape. In this context, China’s private-owned enterprises have also started to expand their investment in the Southeast Asian markets. Nonetheless, the BRI has been confronted with problems and challenges, and has been criticized for the lack of risk management, profitability, sustainability, localization and public support. It shows that the export of ”China Model“ can be problematic, as it remains not adapted to other countries’ local conditions. This research first looks at the achievements of the BRI in Southeast Asia, and then examines the problems and challenges in these projects. Finally, this article also aims to provide a number of policy recommendations to the Chinese government.

PURPOSES: This study aims to review the concept of emergency road networks through previous studies and propose a risk and resilience evaluation method for selecting an emergency road network in the event of an earthquake disaster in major highways in Daejeon. METHODS : Risk assessment in consideration of the possibility, exposure, and vulnerability of relatively weak spots and sections in the event of an earthquake disaster on major highways in Daejeon Metropolitan City, and responsiveness, mitigation, and accessibility for urgent response to disaster recovery and management. The emergency road network selection method was proposed by taking into account resilience evaluation. Five levels of links were classified using the P-I method and the overall scores were calculated by considering the weighting factors. RESULTS : In the selected emergency road network, the main roads located near major disaster prevention facilities (public institutions) and response facilities (firefighting and emergency facilities) exhibited a high priority during the earthquake. In addition, highways that emphasized the speed and connectivity between the local emergency road network and the surrounding suburbs exhibited a high priority. CONCLUSIONS : To designate the emergency road network in advance, evaluation of vulnerable facilities and exposure points in the event of a disaster needs to be considered, which can be used to establish a disaster safety plan, thereby ensuring speed and continuity in disaster response.

“일대일로” 이니셔티브가 지속적으로 발전하고 있으며 이로 인해 많은 외국인들 이 중국어와 중국문화 대한 큰 관심을 가지고 있다. “일대일로” 배경하에 외국인을 대상으로 한 중국어교육(즉 대외중국어교육)이 활성화 되는 반면, 대외중국어 교육 수준 재고를 위한 많은 연구가 필요하다. 특히 사자성어는 중국어 실력을 판단하는 하나의 중요한 측정도구이고 사자성어의 난이도를 측정할 수 있으면 중국어능력 평가시 많은 도움을 줄 수 있다. 하지만 기존 연구는 대외중국어교육 중 사자성어의 난이도 측정에 대한 언급조차 없었다. 본 논문은 대외중국어교육시 가장 많이 쓰이는 대강(权威大纲) 5세트, 고급단계 종합교재(高级阶段综合教材) 4세트, 그리고 “국내외 대외중국어교재 데이터베이스(国内对外汉语教材语料库)”에서 나타난 사자 성어를 CLL데이터베이스의 사자성어과 사용빈도(使用频次) 및 피복률(覆盖率)등 치수로 비교하였다. 그리고 HSK 동태작문데이터베이스 (动态作文语料库)의 편차률 과 비교한 결과로 900개의 사자성어를 지정하였다. 이어서 이 900개 사자성어로 질과 양적인 연구를 통해 3가지 난이도로 구분하였다. 또한 이를 외국인 학생 대상으로 층별교습법(分层教学法, hierarchical teaching)을 통해 교습하여 실증연구하 였다. 연구결과로 사자성어 난이도를 측정하여 층별 교습 시 효과가 더욱 좋다고 나타났고, 학생도 빠르게 사자성어를 습득할 수 있다는 결론도 도출하였다.

PURPOSES: The objective of this study is to evaluate the shear and tensile strength properties of adhesive road studs in asphalt and concrete pavements. METHODS: The 300 mm×300 mm×50 mm rectangular specimens were fabricated using asphalt and concrete mixture for installation of road studs. Four 140-mm-radius circular areas were milled on each specimen with depth of 5 mm to install the adhesive road studs. About 100 g of thermal melting adhesive was applied on the milled area, and then the road stud was bonded onto the surface of the asphalt and concrete mixture. Direct shear testing was conducted at a speed of 5 mm/min on the interface between road stud and asphalt and concrete materials. Tensile strength testing was also conducted on the prepared specimens by applying load with increase of 50 kPa per second. These tests were performed not only in dry condition but also in wet condition to determine the effect of moisture on the shear and tensile strengths. RESULTS : According to the shear testing results, the average shear strength of asphalt samples in dry and wet conditions are 0.509 and 0.234 MPa, respectively. From this testing, the shear strength of wet sample was found to be decreased by 50% with respect to that of the dry sample. Similar trends can be observed on the concrete samples. The average tensile strength of asphalt samples was 0.187 MPa at 1.5 mm of displacement in dry condition. The concrete sample has a 0.222 MPa average tensile strength, which is slightly higher than that of the asphalt sample because of the rough surface characteristics of the concrete sample. CONCLUSIONS: It is determined from this study that the shear and tensile strengths of road stud bonded on the surface of asphalt mixture are slightly lower than those on concrete samples. Regardless of the pavement type, the wet conditioning of the sample can decrease the shear and tensile strength by 50% those of the dry sample. In the future, the quality improvement of adhesive and increase of specific surface area should be considered to improve the bonding property between road stud and pavement surface.

PURPOSES: The objective of this study is to evaluate the durable performance of combined organic and inorganic hybrid mortar as repair material (HRM mortar) for concrete road facilities via comparison with that of cement repair materials (IRM mortar). METHODS : To produce HRM mortars, inorganic materials as binder and 2 mineral fillers were adopted. The ratio of main resin versus hardener was fixed at 1:2. For comparison, IRM mortars made with cement repair materials were also manufactured. Compressive, flexural, and bonding strengths were measured at predetermined periods. For durability assessment, the scaling resistance, freezing & thawing resistance, rapid chloride penetration resistance, and acid attack resistance of those mortars were experimentally monitored. RESULTS: The durability performances of HRM mortars, especially with respect to freezing & thawing, rapid chloride penetration and acid attack, were identified to be much better than those of IRM mortars. This result implies that HRM is a highly promising and versatile material because of its excellent durability. CONCLUSIONS: It is concluded that the application of the combined organic and inorganic hybrid mortars is possibly an option for the repair of concrete road facilities exposed to aggressive environments.

PURPOSES : This study aimed to estimate road pavement life expectancy using Bayesian Markov Mixture Hazard Model, to support infrastructure asset management. In addition, the life expectancies for the pavement condition index were compared among regional construction and management administrations. METHODS : Eleven years of National Highway road pavement monitoring data fused with ESAL (Equivalent Single Axle Loads), SNP (Structural Number of Pavement, an indicator of structural capacity), and average low temperature, total rainfall, and de-icing were used for the deterioration modeling. Deterioration modeling was performed through the Bayesian Markov Mixture Hazard Model. RESULTS : The expected life expectancy of the crack was estimated at 12.28 to 18.51 years, rut depth was estimated at 15.93 to 25.3 years, and the International Roughness Index was estimated at 10.44 to 14.33 years. It was also confirmed that the heterogeneity factor proposed in the Bayesian Markov Mixture Hazard Model could be used to analyze group characteristics and differences in the benchmark. CONCLUSIONS: This study provided important information in that it compared the life expectancies and structural characteristics of the pavement condition indexes among regional construction and management administrations. Based on this result, it is expected that a pavement structure design and maintenance strategy suitable for deterioration characteristics among regional construction and management administrations will be established.

PURPOSES: In this study, a numerical parametric study was performed to evaluate the effect of angular velocity and weight of wheel, and density of road-bed particles on corrugation development. METHODS : Discrete element method coupled with rigid body dynamics was applied to simulate a wheel-running circular table with variations in independent parameters, such as wheel angular velocity, wheel weight, and particle density. The position profiles for travel distance from origin were compared and analyzed to confirm if the trend from numerical analysis agrees with the analytical solution. RESULTS: The angular velocity of the wheel exhibits a clear inverse relationship with the development of corrugation even though the weight of wheel does not demonstrate clear trends for both long-wave and short-wave corrugation. The density of road-bed particles is observed to have clear proportional effect on corrugation development. The movement of corrugation to the running direction, which was observed in previous research, is also observed for various conditions. CONCLUSIONS : The parametric study using discrete element method with rigid body dynamics clearly exhibits good agreement with analytical solution for initiation of corrugation. The coupled method is confirmed to supply additional information that cannot be delivered by analytical solution only.

PURPOSES : The Ministry of Land, Infrastructure and Transport (MOLIT) and its subordinate agencies have recently established various policies for the application of BIM and are implementing these policies, and are increasing project orders with the application of BIM. Developed countries where they have earlier adopted BIM provide BIM standards and guidelines at the national level to support BIM implementation by private-sector constructors. Domestic BIM standards and guidelines, however, have been lacking details on upper-level standards that have to be presented by ordering agencies, thereby limiting the practical application thereof. This study aims to provide BIM practice manual development measures to ensure the facilitation of the writing of BIM outputs and their delivery in the road sector. METHODS: This study first analyzed domestic BIM standards and guidelines, and examined BIM processes in the existing BIM guidelines to determine the major works required in each stage of the implementation of road construction projects. Further, the study determined those matters that were required in working BIM but were not specified in existing BIM guidelines. Those derived contents have been reflected in the definition of the configuration system in the table of contents of the BIM practice manual, and in the contents on the road sector, and the details of each configuration system have been specified. RESULTS : The proposed BIM practice manual for the road sector is a technical guide on BIM guidelines published by public ordering agencies, and provides the basic requirements and methods required for the writing of BIM models. Further, the manual provides working procedures and detailed methods for writing BIM to enable working-level staffers on BIM projects to construct BIM data. The proposed BIM practice manual was configured with considerations for domestic civil-sector BIM technology levels and will be further developed and improved according to the development of domestic BIM technology. CONCLUSIONS : In an effort to respond to the changing domestic construction technology environment, and to apply and activate BIM, this study analyzed domestic BIM standards and guidelines, and defined a working BIM manual configuration system and its detailed configuration method. The findings and improvements are presented as a BIM practice manual on development measures in the road sector. This manual is expected to minimize the repetitive trials and errors and design errors in the construction of road-sector BIM models, to improve the productivity and efficiency in the creation of BIM outputs and their delivery, and to enhance the quality and utilization of the outputs. Further, the proposed manual is expected to provide and share information on the practical cases for BIM, to bolster the capabilities of design engineering, to ensure the linkage with relevant agencies, and thus to expand the diffusion of BIM in a virtuous cycle.

A retractable bollard system has been used for the traffic control and protection of important facilities such as electric power plants, airports and government buildings etc. The power source of the driving unit of the conventional protective bollard system is on hydraulic or pneumatic system which has several disadvantages compared to an electric driven unit. In this research, an electric driven unit for an automatic retractable bollard is designed and developed to replace the conventional hydraulic and pneumatic driven type. For the reliability test of the developed electric driven unit, a field test has been successfully done. A case study was conducted to develop a defensive retractive bollard which the target performance is 9sec. and 7sec. on its raising and descending operation speed respectively with 750mm in stroke. The required time limit was fully satisfied as the time measured from the experiment were 7.5sec and 5.5sec for each operation. The developed unit also passed 364,000 cycles of operation without any serious malfunctions at the load test proving its reliability. The design theory and process of an electric driven unit of the automatic retractable bollard presented in this article is believed to be very useful contribution and design tool in advancing the physical security industry.

PURPOSES: This study identifies the policy changes in road infrastructure over the last 30 years, and rates user satisfaction using opinion mining techniques. METHODS: First, we collected a text data set of the keyword 'road transport services' from media articles published between January 1, 1990 and June 10, 2019 that were managed by the Korea Press Foundation. Next word frequencies were analyzed to extract keywords relating to important policy issues. Moreover, to ensure changes in user satisfaction level with the road infrastructure, sentimental analysis was used. RESULTS : The results indicate that policy issues changed significantly every 5 years. Public opinion on newly introduced advanced technology in road transportation was generally positive, and user satisfaction gradually increased with time. CONCLUSIONS: Prior to the implementation of new technologies in road transport services, public opinion must be surveyed to ensure that the mobility policies are convenient and satisfactory.

In 2013, China unveiled its dream of retrieving the ancient Silk Road by undertaking massive infrastructure projects and adding value to ports around the Silk Road. The Belt and Road Initiative (“BRI”) refers to China’s proposed Silk Road Economic Belt and Maritime Silk Road This big project has recently been accepted by Nepal. Nepal has its own foreign direct investment (“FDI”) laws and policies. This paper aims to analyze these laws and policies from the perspective of China’s BRI. The specific objective is to explore the importance of BRI in Nepal and the major challenges for its implementation in reference to Nepalese FDI laws and policies. The essence of BRI is to promote regional and crosscontinental connectivity between China and other countries along the Belt and Road. The BRI is relevant to social, cultural, and economic development of its associated countries. Trans-Himalayan connectivity, political transition of Nepal and property right of Nepal is the leading challenges for BRI implementation in Nepal.

The Belt and Road Initiative (BRI) is a new model of international cooperation and new platform for global governance under contemporary international law. The Initiative will promote basic principles of international law, playing the mediating role of preventing disputes and resolving various risks in the process of establishing a new pattern of global governance. The Initiative is in line with the new trend of international cooperation and development in the 21st century, representing a new round of the process of reforming international political economy. It is a useful attempt to enhance China’s contribution to economic co-prosperity and political stability among the countries along the Belt and Road. This paper tries to understand the BRI under contemporary international law. Part two will discuss the status of the BRI. Part three will investigate the influence of the BRI. Part four will analyze the function of contemporary international law for co-building the Belt and Road.

현재 일본 등 외국에서는 특별히 금지된 장소 이외에는 차량 운전자가 “보행자나 다른 차량의 정상적인 교통을 방해할 우려가 없다고 판단하 는 경우”도로의 중앙을 넘어 우회전·좌회전 또는 회전(유턴)할 수 있 도록 되어있다. 그러나 한국에서는 1984년 당시,“교통안전”을 확보하기 위해 좌회전은 원칙적으로 교통 신호에 따라서만 가능하도록 하고, 원활한“교통소통”을 도모하기 위해 필요한 경우에는 관할 지방경찰청장이 특별히 허용한 장소 에서만 제한적으로 좌회전을 허용하는 방식의‘비보호 좌회전’이라는 독특 한 제도를 도입하였다. 원래‘비보호’란 법의 보호를 받지 못한다는 의미이며, ‘비보호 좌회 전’은 도로의 중앙을 넘어 반대방면으로 진입하는 운전 행위이기 때문에 매우 위험하다. 따라서 종래에는 도로교통법령에‘비보호 좌회전’하다가 교통 사고가 발생하면 좌회전 차량 운전자에게“신호위반”의 책임을 지고 무거운 처벌을 받도록 규정함으로써 평상시 경각심을 가지고 조심스럽게 운전을 하도록 유도하고 있었다. 그런데 2008년경부터 경찰청은‘비보호 좌회전’과‘유턴’확대,‘비보호 겸용 좌회전’ 신설 등 주로“교통소통”위주의 시책을 적극 추진하였다. 그 과정에서“적신호시, 좌회전시 등”기존의 보조표지를 제거한‘유턴’허 용 지점이 많아졌고, 그 결과 교통사고가 빈발하자, 일부 지역에서는 기존의 보조표지를 제거한‘유턴’허용지점에 현행법상 아무런 근거도 없는‘비보 호’라는 새로운 내용의 보조표지를 부착하는 등 현재‘비보호’는 관련법 규정과 실제 운용 실태 간에 상당한 괴리와 혼동이 발생하고 있는 실정이다. 그중에서도 특히 2010년 8월에는 ‘비보호 좌회전’하다가 교통사고를 야기 한 운전자에게는 “신호위반”의 무거운 책임을 지도록 했던 기존의 근거 규정 도 삭제되었다. 그 결과 녹색 신호에 정상 진행하다가 반대방향 도로에서 갑자기 튀어나온 비보호 차량과 충돌하는 사고를 당한 피해 운전자 입장에서 는 가해 운전자가 종합보험에 가입되어 있는 경우, 현행 「교통사고처리특례 법」상 불기소로 가볍게 처리됨으로써 그에 따른 불만이 크게 고조되고 있다. 따라서 이러한 문제를 해소하기 위해서는 교통사고 발생 시, 당사자 간 여러 가지 중대한 책임과 의무를 초래하게 되는 법상 ‘비보호’관련 규정을 다음과 같이 시급히 정비 ․ 보완해야 할 필요가 있다. 첫째, ‘비보호’및 ‘유턴’의 개념을 법 제2조에 신설하고, 관련 규정을 개정․보완해야 한다. 둘째, 이미 활용되고 있는 ‘비보호 유턴’을 현실화하고, 그 근거 규정을 신설하여야 한다. 셋째, ‘비보호 좌회전 및 유턴’통행하는 차마 운전자에 대한 책임성을 강화해야 한다. 넷째, ‘비보호 좌회전 및 유턴’의 법적근거와 사고 야기에 따른 처벌규 정을 신설해야 한다. 다섯째, ‘비보호 유턴’관련 안전표지 및 노면표시를 신설하고, 비보호 허용지점 전방에는 ‘예고 노면표시’를 설치 ․ 운용해야 한다.

PURPOSES: The purpose of this study is to identify the key factors that influence a driver’s trust in road-freezing risk information METHODS : A survey was designed and conducted in the metropolitan area to analyze drivers’perception towards road-freezing risk information. A binary logistic regression model was developed based on the survey responses. The statistically significant model coefficients were determined and their odds ratios were calculated. Finally, they were considered as the key factors influencing drivers’trust in roadfreezing risk information. RESULTS : The developed binary logistic regression model was validated through statistical tests. The final results indicated that previous experiences of accidents on slippery roads, as well as route choice patterns are statistically significant, having 95% confidence levels. CONCLUSIONS : Previous experiences of accidents on slippery roads and road choice patterns are the factors that most significantly influence drivers’trust in road-freezing risk information. The findings of this study will be used as fundamental data in establishing tailored road-freezing risk mitigation procedures and services.

PURPOSES: This research analyzes how the distribution of users changes when roads that impede walking are transformed into a pedestrian friendly space. The scope of the areas that are benefiting is presented, and the results can be used as basic data for demand generation and as indicators of policy judgments used in economic analysis. METHODS: Using statistical models, the scope of park users was analyzed by park type and the distribution of park and eco-friendly space users was compared. Differences in the moving distance of users was compared by using ANOVA and T-test analysis, and the distribution of users was compared by Kdenicity and Cumulative distribution plots. RESULTS : Based on the cumulative 90 percent distribution, the user’s walking range is about 1.3 km in small-scale parks, 2.2 km in ecofriendly spaces and 3.8 km in the western highway. The Anyangcheon Waterfront Area currently has a pedestrian impact zone of about 1 km (the 10% utilization rate) and will increase to 3.8 km after the project. CONCLUSIONS : Pedestrian-friendly road projects can improve access to existing waterfront areas. The walking user’s range will be wider after completing the project and has a different range to existing parks in Seoul.

본 연구는, 서초구 주민들이 2012. 8. 29.경 서초구청이 대한예수교장로회 사랑의 교회에 대하여 한 서울 서초구 소재 참나리길 일부 지하부분에 관한 도로점용허가처분에 대해 무효확인청구(예비적 청구취지: 취소청구)의 소를 제기함으로서 시작되어 8년여에 걸친 소송이 진행된 후, 최근 대법원의 상고기각 판결에 의해 위 도로점용허가처분 취소 판결이 확정된 사건을 다루었으나, 위 도로점용허가처분 취소 판결에 대한 타당성 여부에 대한 검토나 평석이 아니라 처분청인 서초구청이 위 취소 판결의 기속력에 따라 조치를 취해야 하는 이 사건 도로에 대한 원상회복명령 등 그 후속절차에 관한 것이다. 위 취소 판결로 인한 후속절차로는 원상회복명령, 이행강제금 부과, 행정대집행, 부관인 허가조건의 유효성, 건축허가(일부)취소, 손실보상 등이 문제 되는데, 그 중 가장 중요한 것은 원상회복명령과 행정대집행의 가능 여부로서, 전자와 관련해서는 원상회복의 방법, 원상회복 명령 및 그 이행 가능여부, 원상회복의무 면제시 교회의 대상 시설물 사용 가능여부 등이, 후자와 관련해서는 대집행 요건 중 대체적 작위의무인지 여부, 집행대상의 특정 가능여부, 의무 불이행 방치가 심히 공익을 해하는지 여부 등이 각 주요 쟁점 이 된다. 본 연구로 인하여 취소판결로 인한 후속절차로 어떤 것이 문제가 되는지 파악이 되고, 원상회복명령과 행정대집행의 기준이 다소나마 명확해짐으로 인하여 행정처분의 상대방에게 법적안정성이 부여될 수 있기를 바라고, 위 도로점용허가처분 취소판결 확정으로 인한 대상 교회의 후속절차 문제가 원만하게 해결되기를 기대한다.