• 한국콘텐츠학회논문지
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• 제21권12호
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• pp.190-201
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• 2021

도로전광표지판(VMS : Variable Message Sign)은 도로이용자에게 교통, 도로, 기상상황 및 공사로 인한 통제 등에 대한 실시간 정보를 제공함으로써 교통흐름의 효율화와 통행의 안전성을 향상시키기 위한 장비이다. 일반국도 VMS의 대부분을 차지하는 문자식 VMS에서 표출 및 제공되는 소통정보 메시지 구성은 일반적으로 구간, 구간에 대한 통행시간, 소통상황에 대한 정보로 이루어진다. 본 연구에서는 수도권 일반국도에서 운영 중인 문자식 VMS를 대상으로 도로이용자 선호도 분석을 통해 도로관리자 위주의 기존 표출문안을 도로이용자 중심으로 개선안을 마련하였다. 아울러 도로이용자가 가장 선호하는 돌발상황에 대한 정보를 신속하고 효율적으로 제공할 수 있는 시스템 개선에 대한 방안을 제시함으로써 도로이용자 중심의 VMS 교통정보 제공 효용성을 향상시키고자 한다.

• 대한한방부인과학회지
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• 제34권2호
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• pp.31-47
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• 2021

Objectives: This study aimed to report the effectiveness and outcome on the prognosis of pregnancy of traditional Korean medicine treatment for inpatients who had a traffic accident during pregnancy. Methods: The study is conducted by analyzing the medical records of hospitalized patients in a Korean medicine hospital. Seventy-six pregnant patients who got into car accidents from March 2015 to February 2020 were included. We performed statistical analysis by using Statistical Package for the Social Sciences(SPSS) ver. 25.0. To verify the effect of traditional Korean medicine treatment for traffic accidents during pregnancy, we analyzed improvement of symptoms. Also, we analyzed the prognosis of pregnancy and signs of premature birth or miscarriage during treatment to verify the applicability of traditional Korean medicine treatment for traffic accidents during pregnancy. Results: Among the symptoms of pain, there was a statistically significant decrease in lower back pain, post neck pain, headache, pelvic pain, knee pain, lower limb pain, wrist pain, and upper limb pain. Other systemic symptoms showed statistically significant improvement in nausea, abdominal pain, dizziness, and lower limb numbness. All confirmed cases reported normal pregnancy maintenance and delivery, and no miscarriage was reported. Two cases that showed signs of premature birth or miscarriage during treatment were unrelated or unclear with traditional Korean medicine treatment. Conclusions: Traditional Korean medicine treatment is effective and applicable for pregnant women injured by traffic accidents. Further studies are needed to identify the effectiveness and safety of traditional Korean medicine treatment for the sequelae of traffic accidents during pregnancy.

• 한국ITS학회 논문지
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• 제22권2호
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• pp.182-194
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• 2023

교통영향평가는 도시·교통 사업 시행 시에 발생할 수 있는 교통문제를 사전에 해결하는 주요한 역할을 하는 제도이지만 사업의 특성을 고려한 작성 지침과 명확한 심의 기준이 없어 심의 결과의 일관성이 떨어지는 문제점이 있다. 본 연구에서는 교통영향평가에서 심의 의결된 교통개선대책을 분석하여 심의 결과의 핵심 키워드를 찾고 교통영향평가에서 주요하게 검토해야 하는 항목을 제시하고자 한다. 이를 위해 경기도에서 심의 의결된 도시개발사업의 교통개선대책을 중심으로 TF-IDF 및 N-gram 분석을 활용한 텍스트마이닝을 하였다. 도시개발사업에 주요하게 고려되는 사항은 도로, 교차로 등 교통 기반시설의 신설이 주요한 키워드였으며 다음으로 진출입구 위치 설정, 보행 동선 연결이 주요한 사항이었다. 향후 교통영향평가 지침과 심의 기준 마련 시 본 연구에서 제시한 주요 항목을 반영함으로써, 교통영향평가의 일관성과 객관성을 높이는 심의 운영에 이용할 수 있을 것으로 기대한다.

• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2007년도 학술대회
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• pp.327-330
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• 2007

This article discusses a capacity planning method in QoS-guaranteed IP networks such as BcN (Broadband convergence Network). Since IP based networks have been developed to transport best-effort data traffic, the introduction of multi-service component in BcN requires fundamental modifications in capacity planning and network dimensioning. In this article, we present the key issues of the capacity planning in multi-service IP networks. To provide a foundation for network dimensioning procedure, we describe a systematic approach for classification and modeling of BcN traffic based on the QoS requirements of BcN services. We propose a capacity planning framework considering data traffic and real-time streaming traffic separately. The multi-service Erlang model, an extension of the conventional Erlang B loss model, is introduced to determine required link capacity for the call based real-time streaming traffic. The application of multi-service Erlang model can provide significant improvement in network planning due to sharing of network bandwidth among the different services.

• 대한교통학회지
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• 제14권2호
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• pp.223-237
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• 1996

Based on the traffic and accident data collected on a 4.2km (2.6mile) section of Interstate highway 35W in Minneapolis the relationship between traffic operation variables and safety measures is investigated. An aggregate specification that could be integrated into an urban freeway safety prediction methodology is proposed as a multiple regression model. The specification includes lane occupancy and volume data, which are the control parameters commonly used because they can be measured in real time. The primary variables that appear to affect the safety of urban freeway are : vehicle-miles of travel, entrance ramp volumes and the dynamic effect of queue building. The potential benefits of freeway traffic control strategies on freeway safety are also investigated via a simulation study. It was concluded that improvement of urban freeway safety is achievable by traffic control strategies which homogenize traffic conditions areound critical occupancy values.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2004년도 ICEIC The International Conference on Electronics Informations and Communications
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• pp.171-175
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• 2004

Network management for detail analysis can cause speed decline of application in case of lack band width by traffic increase of the explosive Internet. Because a manager requests MIB value for the desired objects to an agent by management policy, and then the agent responds to the manager. Such processes are repeated, so it can cause increase of network traffic. Specially, repetitious occurrence of sending-receiving information is very inefficient for a same object when a trend analysis of traffic is performed. In this paper, an efficient SNMP is proposed to add new PDUs into the existing SNMP in order to accept time function. Utilizing this PDU, it minimizes unnecessary sending-receiving message and collects information for trend management of network efficiently. This proposed SNMP is tested for compatibility with the existing SNMP and decreases amount of network traffic largely

• 한국안전학회지
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• 제25권6호
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• pp.186-196
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• 2010

It has been well known that traffic accidents occur under combined functional contributions of drivers, vehicles and road facilities, and that evaluation of safety levels for a specific road section or point is generally much complicated. Additionally, most of traffic accidents occur randomly implicating it is necessary to be evaluated in terms of probability theory. Thus, the evaluation model which reflects various characteristics and probabilistic distributions of traffic accidents has been necessary. The present paper provides a reliability based model with variables of probabilistic operating speeds and design speeds together which have been individually explaining associated characteristics in traffic accidents. Consequently, the model made it possible for speed management and road improvement projects to be evaluated in a common index. Application studies were performed in three cases. Through the studies, couples of facts were identified that the model successfully considered the probabilistic operating speeds and design speeds together and that then, the model evaluated road safety alternatives relatively which are complicatedly characterized and differently located.

• International Journal of Contents
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• 제16권1호
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• pp.1-9
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• 2020

Recently, the number of traffic accidents on trunk roads tends to decrease due to the performance improvement of passenger vehicles. In the commuter rush hour of morning and evening, vehicles via residential road increases without going along trunk roads. Therefore, there are many traffic accidents of pedestrians (or bicycles) and vehicles on residential roads. In order to safeguard residents against traffic accidents, traffic calming devices (TCD), such as chicane, speed hump, and school zone, etc. have been introduced. Investigating these effects repeatedly is not easy since many times and efforts are required, such as observed at the place actually. In this paper, the effects of TCDs in residential areas, such as noise, speed, and emission of a vehicle, using Simulation of Urban Mobility (SUMO) are examined. As a result, it is found that it is possible to reduce the speed of the vehicle by TCD, and the level of noise at the location behind TCD becomes higher than the level of noise at the location of TCD implemented.

• 대한교통학회지
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• 제35권2호
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• pp.129-142
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• 2017

교통사고 잦은 곳 개선사업은 교통사고 예방을 위하여 도로상에 도로안전 관련 시설물을 설치함으로써 도로 환경적 요인에 대한 결함을 제거하는 대표적 교통안전개선사업이다. 그러나 개선사업으로 인해 설치된 각 시설물들에 대한 효과평가에 대한 연구는 미비하였다. 따라서 본 연구에서 도로 교통안전 관련 시설물의 교통사고 감소효과도를 추정하기 위하여 최근 2004년부터 2013년까지 교통사고 잦은 곳 개선사업 공사가 완료된 4,171개 지점을 대상으로 비교그룹방법을 활용하여 5가지 시설물에 대한 교통사고 감소효과도를 추정하였다. 분석 결과, 전체 교통사고에 대해서는 교통섬 4.45%, 표지병 32.17%, 과속단속카메라 24.13% 사고감소 효과를 나타냈으며, 반면 무단횡단금지시설 0.61%, 미끄럼방지포장은 1.67% 만큼 증가한 것으로 나타났다. 또한 표지병, 무단횡단금지시설, 미끄럼방지포장과 같이 국토교통부의 "도로안전시설 설치 및 관리지침"에서 특정유형의 교통사고 예방에 효과가 있다고 언급된 시설물들의 교통사고 감소효과도를 추가적으로 분석하였다. 그 결과, 표지병은 악천후 시 교통사고에 대해서 52.96%, 무단횡단금지시설은 차대보행자 교통사고에 대해서 62.77%, 미끄럼방지포장은 추돌사고에 대해서 26.60%의 순수 교통사고 감소효과가 있는 것으로 분석되었다.

• 동의신경정신과학회지
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• 제21권2호
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• pp.17-28
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• 2010

Objectives : This study is to evaluate the quality of life and amount of stress after the treatment among the patients who visited hospital due to traffic accident. Methods : We evaluated 40 patients who have been treated by western medicine for 3 months but showed no improvements. We surveyed VNRS, SF-36 and IES-R-K scores before treatment began and treated patients twice a week for 4 weeks with acupuncture, chuna theraphy, herbal medicine. After 4 weeks of treatment, we surveyed VNRS, SF-36 and IES-R-K scores again and compared with the scores of before treatment. Results : VNRS score and SF-36 scale and IES-R-K scale showed significant improvement after the treatment, compared to the treatment before. Conclusions : The amount of pain and stress, physical condition, all showed improvement among the patients who came to Oriental medicine hospital due to traffic accident.