• International Journal of Highway Engineering
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• v.9 no.2 s.32
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• pp.115-127
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• 2007

Developed countries, especially in road construction and management fields, introduce new road porjects such as National Scenic Byways Program(NSBP program) in USA and the Eco-road project in Japan. This study develops a conceptual model for deploying new road projects in Korea. The four step approach is suggested to create new road projects, including foundation of an act based on the existing Road Act, creation of new road project ideas, development of evaluation process and guidelines, and enhancement of an administrative scheme. To create new road projects, three different ways are devised; (1) designation of national roads having uniqueness in overall spectrum, (2) designation of roads having intrinsic values in a different aspect, (3) designation of single structures of engineering outcomes such as bridges, tunnels, new design techniques, considerable Value Engineering output, and well analyzed Life Cycle Cost Analysis practices. For the evaluation process, NSBP program of USA and/or Sustainable City Award program of Korea would be recommended. An administrative scheme and integrated funding process for the new road projects are also suggested based on evaluation of tasks of each team or division of Korea Ministry of Construction and Transportation.

• Journal of Korean Society of Transportation
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• v.25 no.4
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• pp.33-42
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• 2007

This study analyzes presentation methods of traffic guide maps to guide drivers easily and correctly to their destinations on complex road networks. The problems of Korea's guidance systems were analyzed and domestic and international road guide maps were compared. This study includes the problems of road number discernment, such as the sizes, colors and marking intervals on the map. The widths and colors of different hierarchical roads were evaluated. The indices, enlarged downtown maps and uncertainty of grade separation on the map were analyzed and the solutions were also provided.

• Proceedings of the ESK Conference
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• 1998.04a
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• pp.105-110
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• 1998

운전자의 인지 능력을 충분히 고려하지 않은 도로 교통 표지판은 운전 상황에서 순간적인 의사 결정을 어력베 하여 교통사고의 가능성을 증가 시킬 수 있으므로 이에 대한 개선책이 시급하다 하겠다. 그러므로 본 연구에서는 수도권 도로 교통 표지판의 인지적 문제를 설문 조사와 현장 조사를 통하여 구체적으로 분 석하고 이에따른 개선안을 제시하였다. 이를 위해, 서울 시내의 사고 다발 지역을 중심으로 교차로 표지 판의 인지공학적 결함을 면밀히 분석하였고, 1997년 표지판 개정안의 설계 원칙에 대한 인지적 문제점을 도출하였다. 그 중, 교차로의 방향 표지, 방향 유도 표지에 나타난 정보 처리 과정의 문제점 및 노면 표지 의 설계가 운전자의 인지적 혼돈을 유발시킬 수 있다는 가정하에 이에 대한 모의 실험을 실시 하였다. 24명 의 피설험자를 대상으로, 개선된 표지판과 현 표지판을 모의 운전 상황에 따라 간헐적으로 컴퓨터 화면을 통해 관측하게 한 후 인지된 내용의 정확도와 반응 시간을 비교하여 분석하였다. 그 결과에 따라 기존 노면 표지의 형태를 개선하고, 방향 예고 표지판과 방향 표지판의 인지적 구별을 명확하게 하는 것이 운전자에게는 정확하고 신속한 의사 결정을 하게 한다는 것을 발견 하고 이에 대한 원칙을 제시하였다. 결론적으로 표지판의 설계와 설치에 있어 행정적인 지원과 인지적인 요인에 대한 고려가 된다면 표지판의 오독으로 인한 교통 사고를 줄여 나가는데 기여할 것으로 기대된다.

• Journal of KSNVE
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• v.6 no.4
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• pp.414-425
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• 1996

도로의 입체 정비제도 도입방안은 대도시의 교통난을 적극적으로 해결한다는 측면에서 새로운 시대의 교통대응 전략으로서 대두될 것으로 판단된다. 특히, 심각한 교통난을 겪고 있는 서울시로서는 이제도의 도입방안을 매우 긍정적으로 받아들일 수 있으리라 판단된다. 그러나 이 제도의 시행을 위해서는 관련법 제도의 검토와 구분 지상권 및 보상기준, 건설공사 및 유지관리를 위한 기준, 건설 후의 주변환경에 대한 고려 등 여러가지 문제점의 해결을 위한 대책 방안의 마련이 필요하리라 생각된다. 상기와 같은 관련법 제도의 검토와 관련하여 소음법규에 있어서도 개선이 이루어져야 할 것이다.

• Proceedings of the KOR-KST Conference
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• 1998.10a
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• pp.410-419
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• 1998

인천시 택시사고율이 전국에서 가장 높기 때문에 인천택시사고의 특성분석과 대책을 마련하는 것이 본 연구의 목적이다. 택시사업체, 택시기사, 도로현황, 보험제도 등을 설문조사, 현장조사, 방문조사방법을 통하여 분석하였다. 설문조사결과 상용근로자의 요인이 안전에 좋은 영향을 가져올 것으로 기대되는 등의 13개 시사점을 발견하였고, 도로의 구조적 문제점을 세부적으로 지적하였으며, 주행거리 종량제와 같은 보험제도 개선안을 제시하였다. 그리고 버스전용차로의 택시이용에 관한 정부의 배려가 현재 악화되어 있는 택시의 운영실태를 개선할 것으로 보며, 결국 택시사고의 감소로 이어질 것으로 기대된다.

• Journal of Korean Society of Transportation
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• v.24 no.3 s.89
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• pp.125-131
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• 2006

Recently, flowerbed median strips are being installed in urban highways for safety and scenery. In addition, efforts to enhance urban image through roadside flowerbeds and trees are being exerted for afforestation to enhance the urban environment. The sensibility of humans, such as the feeling of agreeableness of drivers must be considered when planning roads. However, not many researches on users on road environment are being conducted. Accordingly, KANSEI Engineering that is attracting attention nowadays was applied to form the image or sensibility of humans as definite object, in order to grasp the relation between the personal attributes of users and road formation with sensible factors considered when the road users evaluates the road scenery. As the result of research, streetscape was not evaluated based on individual factors such as roads, trees and buildings that form roads, but was based on sensibility image based on harmony of the overall road formation according to the changes of each factors.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.41 no.4
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• pp.405-416
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• 2021

The safety speed 5030 policy, which is currently being implemented nationwide, tends to increase citizens' dissatisfaction due to reduced mobility and inconvenience. In order to successfully promote the Safety Speed 5030 policy, it is important to collect various opinions of citizens who use roads by deviating from quantitative policy evaluation criteria such as traffic accidents and traffic speed. Therefore, in this study, citizens who use roads were classified into a driver group and a non-driver group, and civic consciousness analysis such as adequacy evaluation of speed limit, satisfaction evaluation of road service quality (MDS), and importance-satisfaction analysis (IPA) was conducted. As a result of the analysis of civic consciousness, in particular, satisfaction with mobility, economy, and environment was low. Accordingly, it was intended to promote the successful implementation of the Safety Speed 5030 policy by presenting measures to improve the speed limit and quality of road service for roads with low satisfaction.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.38 no.4
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• pp.375-382
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• 2020

As the 4th Industrial Revolution era in worldwide, interest in autonomous vehicles is increasing. but due to recent safety issues such as pedestrian accidents and car accidents, as a technical model for this, the demand for 3D HD maps (High Definition maps) is increasing in including lanes, road markings, road information, traffic lights and traffic signs etc. However, since some complementary points have been continuously raised according to demand, It is necessary to collect the opinions of institutions and companies utilizing HD maps and to improve HD maps. This study was conducted by utilizing the results of the contest for usability verification of HD Maps hosted by the National Geographic Information Institute and organized by the Spatial Information Industry Promotion Institute. For this study, we researched HD maps' layers and codes for HD maps object usability to improve HD maps, constructed HD maps object usability items accordingly, and contested usability verification of HD maps according to the items The contestants conducted verification and analyzed the results. As a result, the most frequently used code for each layer was the flat intersection, and the code showing the highest usage rate was a safety sign. In addition, the use rate of the sub-section and height obstacles was 16.67% and 8.88%, respectively, showing a low ratio. In order to utilize HD maps in the future, this study is expected to require research to continuously collect opinions from customers and improve data objects and data models that are actually needed by customers.

• Journal of Korean Society of Transportation
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• v.29 no.3
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• pp.31-40
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• 2011

Generally, inappropriate driving conditions including geometric, traffic environmental, and driver psychological problems may be critical reasons of traffic accidents. Under this circumstance, various types of facilities have been installed to improve traffic safety by itself or as a set consisting of several other traffic safety facilities. In general, traffic accidents occur by several reasons combined rather than only a single reason, and thus the safety effect of the safety facilities cannot be simply analyzed with only a single improvement. For the study, traffic accident data on the roadway segments of interest are collected along with field survey data. For the analysis, various alternative analysis methods were evaluated in terms of assessing accident reduction from various types of traffic safety improvements. Among the alternative methods tested including simple before-and-after evaluation method, before-and-after evaluation yoked comparison, and Comparison Group (C-G) method, it was found that the C-G method is the most effective method for analyzing the traffic safety improvement effect. Adopting the C-G method, both single and multiple safety improvements were analyzed. The results from this study can potentially be applied to decide the best type of treatments to improve traffic safety as well as to measure the accident reduction effects from the treatments.

• Journal of the Korean Institute of Landscape Architecture
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• v.50 no.6
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• pp.30-41
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• 2022

This study investigates the heat mitigation effects and thermal comfort improvement due to urban parks during summer. Self-developed monitoring devices to measure long-term microclimate data were installed in three spots, including the park plaza, waterside, and roadside in Seoul Forest Park, and measurements were taken from July 9 to July 30. The results of the measurement are as follows. The daily temperature of the park plaza and waterside were found to be 2.7℃ and 2.9℃ lower than the roadside and 5.5℃ and 7.4℃ lower than the roadside from 10:00 to 16:00. In addition, the Universal Thermal Climate Index (UTCI) measurement was applied to measure the thermal comfort at each point. In the average daily analysis, a significant difference was found between the park plaza, the waterside, and the roadside, and a greater difference was found between 10:00 to 16:00. Also, although there was no significant difference due to the weather condition, a statistically significant difference was also found in the average PM₁₀ and CO₂ concentrations. It is found to be higher in the order from the roadside, park plaza, and waterside for PM₁₀ concentration and park plaza, roadside, and waterside for CO₂. In sum, although the difference in measured microclimate data and thermal comfort index results were different depending on the time and weather conditions at the three points, the park plaza and waterside, which are located inside the park, showed improved thermal comfort conditions and lower temperatures than the roadside outside the park.