• 국토계획
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• 제54권3호
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• pp.106-118
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• 2019

In order to develop pedestrian navigation service that provides optimal pedestrian routes based on pedestrian satisfaction levels, it is required to develop a prediction model that can estimate a pedestrian's satisfaction level given a certain condition. Thus, the aim of the present study is to develop a pedestrian satisfaction prediction model based on three machine learning algorithms: Logistic Regression, Random Forest, and Artificial Neural Network models. The 2009, 2012, 2013, 2014, and 2015 Pedestrian Satisfaction Survey Data in Seoul, Korea are used to train and test the machine learning models. As a result, the Random Forest model shows the best prediction performance among the three (Accuracy: 0.798, Recall: 0.906, Precision: 0.842, F1 Score: 0.873, AUC: 0.795). The performance of Artificial Neural Network is the second (Accuracy: 0.773, Recall: 0.917, Precision: 0.811, F1 Score: 0.868, AUC: 0.738) and Logistic Regression model's performance follows the second (Accuracy: 0.764, Recall: 1.000, Precision: 0.764, F1 Score: 0.868, AUC: 0.575). The precision score of the Random Forest model implies that approximately 84.2% of pedestrians may be satisfied if they walk the areas, suggested by the Random Forest model.

• 대한건축학회논문집:계획계
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• 제36권5호
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• pp.59-70
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• 2020

The purpose of this study is to derive the environmental factors affecting child loss through correlation analysis between child loss and pedestrian density. The status of lost children was identified through the lost child records and interviews in large parks. In addition, the behavior survey was conducted by photographing the entire outdoor of each park, and visitors was marked on the behavioral maps. Also, the pedestrian density was analyzed by GIS as 100㎡ and 1㎡ grid. As a result, child loss was related to the pedestrian density rather than the number of visitors or the area. Especially, 'Dynamic pedestrian density' and 'Ratio of pedestrian in high density to area' was related to child loss. In other words, the more dynamic behaviors such as play and movement appear, and the more the local area of high density, the higher the probability of child loss. In addition, environmental factors that induce such high density include bottlenecks, overlap of circulation due to multi-functionality of space, concentration of rides, and concentration of guardians due to visual obstacles.

• 대한인간공학회지
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• 제29권4호
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• pp.647-654
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• 2010

In a service environment, the spatial layout is an important factor that has a great impact on customers' behavioral characteristics including wayfinding and purchasing. Previous studies have shown a gap between marketing, focusing solely on profitability and satisfaction, and architecture, looking only into efficiency of pedestrian flow. To balance such disparity, this study suggests an integrated approach for assessing behavioral patterns in complex service environments. With the objective that complex service environments should aim to increase its profitability and efficiency while guaranteeing customer satisfaction, quantitative metrics was developed for evaluation. The metrics was defined to use data from behavior observation including path tracking, population counting, and gaze analysis, while previous studies have relied on abstract survey methods that were prone to sampling errors and loss of data. For validation of the metrics in a real world setting, a case study was conducted at 4 train stations in Korea. In the case study, experiments were conducted to gather the required data in all 4 train stations, while their physical layouts were also analyzed. With the results from the case study, comparative evaluation of the 4 train stations in terms of behavioral efficiency was possible, together with a discussion on the effect of their physical settings.

• 한국조경학회지
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• 제34권2호
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• pp.26-35
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• 2006

The purpose of this research is to suggest the planting methods and the reasonable target levels of IGS for promoting green streetscape in Seoul. Using the three dimensional computer simulations, various greening methods were applied to evaluate effectiveness of promoting green streetscape. The results of this study suggest that promoting tree planting on car lane is more effective than on pedestrian side walks. In wide streets, the height of tree has positive effects on promoting green streetscape. In both car lane and pedestrian side walks, the greening effects of tree planting both in zig-zag pattern and in parallel pattern were similarly most high. The width of strip in side strip planting has positive effect on promoting green streetscape. Promoting stratified planting is very effective. Promoting greening wall on pedestrian side walks is more effective than on car lane. Combined the results of IGS survey with the public officials and complex simulations, suggest that the optimal levels of IGS is ranging from 12.0% in alleys to 54.0% in car lanes among arterial roads.

• 대한토목학회논문집
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• 제30권6D호
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• pp.675-683
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• 2010

남산은 서울의 대표적인 관광명소지만 도심에 위치하였음에도 불구하고 접근성이 좋지 않아 이용에 불편을 겪는 문제점들이 많다. 본 연구는 남산 르네상스 사업이 실시되고 있는 현 시점에서 남산으로 쉽게 접근하여 이용을 활성화시킬 수 있는 안내체계 개선방안을 제시하였다. 남산에 가장 근접한 주변 대중교통시설부터 남산공원에 진입하는 곳까지를 대상으로 하여 현재의 안내체계에 대한 문제점을 안내사인체계와 보행동선체계로 나누어 분석하였다. 안내사인체계는 현장조사를 통해 설치현황과 유형을 조사하고 문제점을 도출하였으며, 보행동선체계는 현장조사와 보행이용조사를 통해 남산으로 접근하는 보행동선을 분석하였다. 현황분석을 통한 개선방안으로 안내사인체계는 안내사인기능과 유형의 재분류, 설치계획을 수립하였고, 보행동선체계는 남산으로 접근하는 주요보행동선을 설정하여 개선된 안내체계를 도입해 쉽게 찾아갈 수 있는 길찾기가 가능하도록 하였다. 안내체계의 개선을 통한 남산의 접근성 향상은 많은 이용을 유도함으로써 서울의 대표중심공원으로서 입지가 강화될 것이다.

• 대한교통학회지
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• 제30권4호
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• pp.7-19
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• 2012

본 연구에서는 최근 환경재의 편익을 추정하기 위한 목적으로 환경경제학에서 사용하던 CVM을 보행환경개선사업의 가치 추정에 적용하였다. 이를 통해 주민들의 지불의사를 알아보고 보행환경개선사업으로 인한 편익을 정량적으로 산정해 보고자 한다. 이를 위해 본 연구에서는 쾌적하고 편안한 보행환경이 조성된다는 가상시나리오를 구축하여 보여주고, 지불형태, 지불유도방법 등을 고려하여 보행환경개선 사업지역에 인접해 있는 성북구 주민을 대상으로 설문조사를 실시하였다. 설문조사를 토대로 하여 성북구 주민들의 지불의사를 추정해본 결과 보행환경 개선시 매월 627원의 보행환경 개선 부담금을 지불하고자 하는 것으로 나타났다. 그리고 보행환경 개선으로 인한 연간 총편익을 추정해보면 1,247,516,820원에서 286,305,110원에 이르는 것으로 추정되었다.

• KIEAE Journal
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• 제16권3호
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• pp.47-55
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• 2016

Purpose: This study was aimed at providing the basic checklist as a means to assess the crime risk in physical environment of the pedestrian passage at residential area. Method: For this purpose, the preliminary checklists were selected according to the review of the precedent studies of checklists in exterior pedestrian passage. The usefulness and the importance of the preliminary checklists were analyzed through the seven expert group meetings, the 87 questionnaires survey of the crime experts & the architectural/urban experts, preliminary assessment and field survey. Results: The assessment categories of checklists were sorted into six types, i.e. spatial structure & function, lighting, landscaping, security facilities, other facilities and cleaning & maintenance. The 49 checklists were proposed according to the assessment categories. The final checklists were divided key checklists and general checklists based on the results of experts' weighting of each list item. There were significant differences between crime experts' weighting and architectural/urban experts' weighting in several checklists, i.e. dividing between pavements and streets, the brightness of light, white light.

• 한국ITS학회 논문지
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• 제19권4호
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• pp.1-12
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• 2020

본 연구에서는 COVID-19 대유행에 따른 다중밀집시설 중 하나인 서울역 역사를 대상으로 사회적 거리(Social Distance) 유지 및 보행동선체계 구축에 따른 효과분석을 진행하였다. 분석을 위해 서울역 CAD 및 철도역사 이용객 수 조사를 통하여 서울역 보행 Network를 구축하였으며, Social Force Model을 활용하여 사회적 거리(Social Distance)를 유지하는 보행자를 구현하였다. 이를 바탕으로 시나리오 분석을 수행하였다. 분석결과, 보행동선체계 도입 시 현황과 비교하여 평균보행속도가 감소하였으나 평균보행밀도의 경우 보행 서비스수준(LOS) 'C'를 유지하는 것으로 분석되어 보행동선체계의 효과가 입증되었으며, 향후 보행계획 시 보행 시뮬레이션 모델로서 활용이 가능할 것으로 기대된다.

• 한국도로학회논문집
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• 제19권4호
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• pp.69-78
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• 2017

PURPOSES : In this study, we analyzed the road crossing behavior of older pedestrians on a mid-block signalized crosswalk, and compared it to that of younger pedestrians. In addition, we analyzed the correlation between accidents involving older pedestrians while crossing roads and their behavioral characteristics. Finally, we confirmed the reasons for an increase in accidents involving older pedestrians. METHODS : First, 30 areas with the highest incidence of accidents involving older pedestrians while crossing roads were selected as target areas for analysis. Next, we measured the start-up delay (the time elapsed from the moment the signal turns green to the moment the pedestrian starts walking) and head movement (the number of head turns during crossing a road) of 900 (450 older and 450 younger) pedestrians. The next step was to conduct a survey and confirm the differences in judgment between older and younger pedestrians about approaching vehicles. Finally, we analyzed the correlation between the survey results and traffic accidents. RESULTS : The average start-up delay and head movement of the older pedestrians was 1.58 seconds and 3.15 times, respectively. A definite correlation was obtained between head movement and the frequency of pedestrian traffic accidents. The results of our survey indicate that 17.3% of the older pedestrians and 7.8% of the younger pedestrians have a high crash risk. CONCLUSIONS : Behavioral characteristics of older pedestrians were closely correlated with accidents involving older pedestrians while crossing roads in mid-block signalized crosswalks. Our study indicates that in order to reduce the number of accidents involving older pedestrians, it is necessary to develop an improvement plan including measures such as installation of safety facilities taking the behavioral characteristics of older pedestrians into consideration and their safety education.

• 한국융합학회논문지
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• 제12권2호
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• pp.201-213
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• 2021

최근 개인형 이동수단의 보급과 이용의 증가에 따라 보행환경은 더욱 열악해지고 있으며 이와 관련한 안전사고도 급증하고 있는 상황이다. 이에 본 연구는 개인형 이동수단의 보행장애 요소와 관련된 현황조사를 실시하여 이를 통한 문제점을 파악하고 전문가의 의견조사를 통해 개인형 이동수단의 규제를 포함한 교통약자의 보행환경 개선을 위한 방안을 다음과 같이 제시한다. 개인형 이동수단의 보행공간 내 이동을 원칙적으로 금지하여야 하며 주행이 불가피한 경우 제한속도를 규정함으로써 교통약자의 안전하고 편리한 보행권을 확보해주어야 할 것이다. 주차 공간은 차로부의 노외 주차구역이나 보도와 차로 경계부에 장애물 구역을 조성하여 해당 구역에만 하도록 해야 할 것이며 이를 지키지 않는 불법방치된 이동수단의 수거와 관련한 규제가 필요하다. 기존의 자동차 중심의 도로에서 저·중속 이동수단 이용을 고려한 도로 구조로의 전환이 필요하다.