• 한국ITS학회 논문지
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• 제21권4호
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• pp.18-29
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• 2022

주도로 차량 위주의 좌회전감응신호운영은 보행대기시간은 더 늘어날 수 있기 때문에 이는 보행자의 불편 또는 스트레스를 유발하고 있는 실정이다. 따라서 본 연구에서는 좌회전감응신호 적용 전·후의 보행대기시간과 설문조사를 통해 보행자가 느끼는 스트레스를 살펴보았으며 이를 개선하기 위하여 보행자우선 감응신호 시뮬레이션(VISSIM) 분석을 하였다. 좌회전감응신호 적용 후 보행대기시간은 비첨두시간에 37% 증가했다. 설문 결과 보행대기시간이 길어졌다가 62.1%, 그 중 78%는 그로 인하여 스트레스를 받는거로 나타났다. 한편 보행자우선 감응신호 시뮬레이션(VISSIM) 분석 결과, 차량 통행속도는 1.07km/h(2.5%)로 소폭 감소한 반면 보행 평균대기시간은 15.51초(28%) 감소하여 크게 개선되었다. 따라서 보행자우선 감응신호는 보행 대기시간을 감소시켜 보행자 스트레스를 완화할 수 있을 것으로 기대한다.

• 방송공학회논문지
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• 제25권5호
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• pp.734-741
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• 2020

본 논문은 인간과 공존하고 커뮤니케이션하며, 인간에게 심리적 안전거리(사회적 거리) 침해에 따른 스트레스를 유발하지 않는 소셜로봇을 위한 새로운 보행자 회피 알고리즘을 제안한다. 보행자 모델을 새롭게 정의하기 위해 보행자의 걸음걸이 특성(직진성, 속도)에 따라 보행자를 클러스터링하며 보행자 클러스터별 사회적 거리를 정의한다. 정의된 사회적 거리를 포함하도록 보행자(장애물) 모델링을 하고, 새롭게 정의된 보행자 모델에 상용화된 장애물 회피, 경로계획 알고리즘을 적용해 통합된 주행 알고리즘을 완성한다. 새로운 알고리즘의 효과를 검증하기 위해, 상용화된 대표적 두가지 장애물회피 경로계획 알고리즘인 DWA 알고리즘과 TEB 알고리즘을 활용한다. 본 논문의 핵심 알고리즘인 새로운 보행자 모델을 적용한 경우와 적용하지 않은 경우로 구분하여 그 효용성을 평가한다. 그 결과, 새롭게 제안된 알고리즘이 이동시간의 손실 없이 보행자의 스트레스 지수를 현격하게 줄일 수 있음을 보인다.

• 한국산업경영시스템학회:학술대회논문집
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• 한국산업경영시스템학회 2002년도 춘계학술대회
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• pp.273-278
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• 2002

Modern society is an interaction between many different environments. It is important to the mutual relationships between people and especially between people and the environment. One of the mutual relationships between people and the environment is the traffic system, especially the traffic signals which give priority to pedestrian and traffic flow. Traffic signals for the pedestrian on the crosswalk contribute to a safe road environment for the pedestrian, while the traffic signals for the pedestrian running for the flickering of the green signal causes psychological stress. Therefore, this study investigated whether the walking velocity was influenced by the flickering of the green signal or not. Also, this study investigated whether the walking distance had an effect on the walking velocity of the elderly pedestrian or not. It was proved that the flickering of the green signal and the walking distance influenced the walking velocity and subjective sensitiveness according to the result of this study.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 1996년도 봄 학술발표회 논문집
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• pp.202-211
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• 1996

A number of typical type of steel-box pedestrian bridges are constructed in the metropolitan highway or heavy traffic urban area. Although it has the advantage of speedy construction because of its simple structural form and prefabricated erection method, it has been reported that many of these bridges are deteriorated or damaged and thus are in the state such that it would give unsafe and uncomfortable feeling to pedestrians. In the paper, for the realistic assessment of safety and residual earring-capacity of deteriorated and/or damaged steel box pedestrian bridges, an interactive non-linear limit state model are formulated based on the von Mises' combined stress yield criterion. It is demonstrated that the proposal model is effective for the reliability-based safety assessment and residual carrying-capacity evaluation of steel-box pedestrian bridges. In addition, this study suggests an effective and practical field load test method for pedestrian bridges.

• Structural Engineering and Mechanics
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• 제34권2호
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• pp.213-229
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• 2010

An analytical method is proposed for the evaluation of the static response of a prestresse-dribbon concrete pedestrian bridge, which may also be applied for the roofing of large areas. On the basis of an established analogy with a suspension bridge system, a procedure is presented for the prestresse-dribbon direct analysis, leading to the introduction of two dimensionless parameters as governing factors of the design, namely the thinness and the prestressing steel ratio. The exposed procedure, applied by a simple computer program, allows a quick evaluation of the response and permits the investigation of the influence of the aforementioned parameters on it, by means of comprehensive diagrams. The presented diagrams may be directly used for the preliminary design of a pedestrian bridge of this type, for the whole practical range of span lengths. A design example is also included, showing the applicability of the proposed procedure.

• 대한토목학회논문집
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• 제35권2호
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• pp.427-436
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• 2015

본 논문은 무신호 교차로에서 보행자의 횡단행태에 영향을 주는 요소를 분석하였다. 보행행태는 교차로 주변의 환경과 횡단의 기준, 안전에 대한 예견, 순간적인 판단 등이 복합적으로 작용하는 정신적 스트레스의 결과이다. 이러한 복합적 스트레스는 개인의 속성, 교통여건, 환경요인 등 다양한 요인에 의해 영향을 받는데, 이러한 영향요인을 파악하여 교차로를 운영하는데 있어 보행친화적인 환경을 조성할 필요가 있다. 현장과 설문 조사를 통하여 보행자가 비신호 교차로를 횡단하는데 있어서 영향을 주는 다양한 결정변수를 기초로 하여 횡단시도 횟수, 기다림 시간 및 보행횡단 만족도 등에 대한 횡단행태를 분석하는 것이 목적이다. 횡단시도횟수에 대한 각 요소별 특성을 분석하기 위해 $x^2$테스트를 실시하였으며 횡단을 위한 기다림 시간에 영향을 주는 요소를 분석하기 위해 위험률 모형을 구축하였다. 마지막으로 구조방정식을 적용하여 보행자의 보행 횡단 환경에 대한 만족도에 대한 직 간접 효과도 제시되었다.

• 대한건축학회논문집:계획계
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• 제34권11호
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• pp.85-94
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• 2018

This study aims to investigate how easy pedestrians get around within/through the "Apartment Complexes (AC), " a common style of high-rise multi-family housing in Korea. Over the past six decades, the AC has been the most conventional way to provide standardized housing efficiently to address the problems of the shortage of housing and the substandard housing, due to the explosion of urban population with the rapid industrialization. The AC is a huge chunk of homeogenous multi-family housing, mostly condos with decent infrastructure, including parks, pedestrian passages, schools, ect. Both in the new town development and urban renewal programs have utilized the advantages of the AC. Since the design principals of AC tend to adopt the "protective design" to prevent cars and pedestrians coming outside from passing it, it has been criticised for dissecting the continuity of socioeconomic context in neighborhoods. The neo-traditional planning urbanists, including Jane Jacobs, emphasize that smaller blocks and grid road newtworks are the key in improving social, cultural, and economic vitality of the neighborhoods, because these design concepts allow more pedestrians and different types of people to be mixed in a neighborhood. In this study, we first adopted objective measures for pedestrian accessibility and pedestrian efficiency. These measures were used to calculate the lengths of shortest paths from residential buildings to the edges of AC. We tested the difference in shortest paths between the current pedestrian networks of AC and hypothetical grid networks on the AC, and the relative difference is considered as the pedestrian efficiency, using the network analysis function of Geographic Information Systems (GIS) and Python programming. We found from the randomly selected 30 ACs that the existing non-grid road networks in ACs are worse than the hypothesized grid networks, in terms of pedestrian efficiency. In average, pedestrians in AC with the conventional road networks have to walk than 25%, 26%, and 27% longer than the networks of $125{\times}45m$, $100{\times}45m$, and $75{\times}45m$, respectively. With the t-test analysis, we found the pedestrian efficiency of AC with the conventional network is lower than grid-networks. Many new urbanists stress, easiness of walking is one of the most import elements for community building and social bonds. With the findings from the objective measures of pedestrian accessibility and efficiency, the AC would have limitations to attract people outside into the AC itself, which would increase dis-connectivity with adjacent areas.

• 한국산학기술학회논문지
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• 제14권5호
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• pp.2474-2480
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• 2013

스트레스 리본 보도교는 특정한 새그을 갖는 지지 케이블에 교량 길이에 비하여 단면 두께가 아주 작은 Deck을 설치하고 프리스트레스를 도입함으로써 발생되는 긴장된 바닥판의 축력으로 외력의 대부분을 저항하는 구조물이다. 일반 구조물 설계와 달리 스트레스 리본 보도교의 설계는 Deck 단면의 가정 이외에도 지지 및 긴장 케이블량과 긴장 케이블 긴장력을 가정하여야 하기 때문에 보다 많은 반복과정이 발생한다. 본 논문에서는 이러한 반복과정을 최소한으로 줄이고자 지지 및 긴장 케이블량과 긴장력을 합리적으로 가정할 수 있는 회귀분석식이 새그비 1/30, 1/40, 그리고 1/50를 갖는 교량길이 80m에 대하여 제안되었다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.231-232
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• 2023

With taller buildings and larger typhoons, the impact of building winds is growing. During the 11th Typhoon Hinnamno in 2022, the building wind in Busan L City exceeded 60m/s, reaching the highest speed ever. Although many studies have been conducted on reducing the wind load of buildings, which is one of the problem factors caused by strong wind speed, there is a lack of research on wind speed reducing sculptures that can directly control strong wind speed. In this paper, several types of wind speed reduction sculptures were proposed to solve these problems, and the wind speed reduction capability of the proposed sculptures was analyzed through computational fluid dynamics (CFD). These results can contribute to suggesting effective design methods for improving the urban environment and reducing pedestrian stress.

• 한국주거학회논문집
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• 제28권1호
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• pp.45-54
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• 2017

A pedestrian environment provides improved walking conditions and facilities for most pedestrians. However, the walking conditions for women with strollers are poor. The purpose of this study was to provide information on the walking environment planning for women with strollers in an urban housing area through analyse of walking characteristics, patterns of going out, and the psychology of them. This study surveyed 208 women who pushed a baby n a stroller in Gyeongsan. The analysis consisted of calculation of the frequencies, the mean, t-test, and ${\chi}^2$ test. The survey results revealed that, first, the women had their own favorite places in the housing area, and usually went out during the afternoon as various aims. When they went out, they felt stress both psychologically and physically, and they thought that they were weak at walking. Second, the safety and the convenience factors of walking environment were important conditions that make the women to go out often. Third, the environment that have not the accessibility, the amenity, and the diversity also restricted the women from going out with the stroller. As a result, they did mot use the stroller and tended to use their cars to go out. However, when the diversity of the environment is added to walking environment, women invreased their social interactions.