• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.1746-1749
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• 2012

국토해양부는 일반국도의 적정한 도로포장 유지보수를 통한 예산의 효율적사용을 위해 일반국도 포장관리시스템(PMS)을 운영하고 있으며, 일반국도 포장상태 조사 및 유지보수실적을 관리를 위하여 포장 자료 관리용 엑셀파일을 데이터베이스로 구축하였다. 본 연구에서는 기존 일반국도 포장관리시스템(PMS)운영의 한계를 분석하고 현장의 명확한 판단 기준을 제시 할 수 있는 시스템의 개선방안을 기술하고자 한다.

• International Journal of Highway Engineering
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• v.13 no.3
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• pp.121-129
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• 2011

The purpose of this study is to determine the relationship between observed traffic data and NOx concentrations from not an ideal condition but a real road in real-time. Also we aim to develop an estimation model for NOx emission concentrations due to vehicle exhaust gas, and it can be applied to monitor the degree of air pollution on National Road in real-time. To eliminate outliers which are occurred due to errors of equipments and other variables, we use the robust analysis and develop two models. which are considering and not considering wind impact. The result of this research can be used for understanding present condition of air pollution caused by vehicle exhaust gas and evaluating for environmental effects of transportation policy.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.11a
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• pp.1603-1605
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• 2013

산업과 정보통신 기술의 발전으로 토목분야도 GIS, DBMS 등 다양한 정보시스템을 도입하여 국가 발전의 선구자 역할을 주도 하고 있다. 토목분야 중에서 우리 생활과 밀접한 관계가 있는 도로 포장관리시스템(PMS)에도 보다 효율적이고 체계적인 도로포장 관리를 위해 GIS 및 DBMS를 운용하고 있다. 전국 일반국도 포장상태 조사 및 자료 검증의 경우 DBMS를 통해 포장 상태 산출과 평가 신뢰성이 확보되어 효율적 예산 배치 및 정확한 포장상태 관리의 기반이 된다. 본 논문에서는 GIS 기반의 전국 일반 국도 포장상태 조사 지점 관리 및 자료 검증 시스템 개발에 대하여 기술하고자 한다.

• Transportation Technology and Policy
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• v.5 no.1
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• pp.93-101
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• 2008

• 도로교통
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• s.104
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• pp.32-39
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• 2006

• 도로교통
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• s.103
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• pp.80-86
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• 2006

• The Journal of the Korea Contents Association
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• v.15 no.3
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• pp.406-414
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• 2015

Existing relative researches for traffic were studied under favorable weather or excluding impact of weather. This study present traffic volume variation according to rainfall intensity in national highway provincial road and rainfall-factor. Continuous traffic count section match AWS after selecting to analyze provincial road 256 section. Weekdays ADT(Average Daily Traffic) and rainfall-factor are influenced by rainfall a little because of business travel. But non-weekdays ADT and rainfall-factor are influenced much more than weekdays because of leisure travel. Estimated AADT(Annual Average Daily Traffic) by adjusting rainfall-factor is lower MAPE than non-adjusting rainfall factor. So, rainfall have to be considered when estimating AADT. ADT decrease according to rainfall intensity, continuous studies considered rainfall intensity are needed when road design and operation.

• The Journal of the Korea Contents Association
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• v.15 no.4
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• pp.510-518
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• 2015

Weather condition has effect on traffic condition, but there is a lack of research between weather and traffic condition. So, in this study analyzes speed variation according to rainfall intensity in national highway provincial road. The results of the analysis, average speed is reduced about 3.2%. But average speed decrease by maximum 8.8% when traffic volume is below 200vph per direction. Because relatively, free flow traffic speed has greatly deceased according to rainfall intensity in provincial road. Also in this study estimates of speed reduction model according to rainfall and performs the statistical verification. Estimated speed reduction model's slops are gradual when rainfall increased, because average speed is reduced by rainfall when free flow.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.16 no.1
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• pp.1-13
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• 2017

A national highway takes on an arterial roadway role between regions. It's traffic volume of minor approach is very lower than mainline because most of the traffic of national highway consists of through traffic. This means an actuated signal operation is more efficient on the national highway than pre-timed signal. actuated signals have detections on some or all movements except the mainline. In spite of these effects have been evaluated in previous studies, widespread propagation of actuated signal operation has not made so much in Korea. Because there are so many problems to use actuated signal as it is in side of roadway facilities. In this study, improved a actuation system for the national highway and evaluated it with field implementation.

• The Korean Publising Journal, Monthly
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• s.240
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• pp.8-8
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• 1998

미국과 영국의 대학출판국은 일반 상업출판사들이 엄두조차 내지 못하는 학술서와 수준 높은 교양물로 일반 대중까지 고급문화를 향유할 수 있도록 끊임없이 노력해왔다. 옥스퍼드.케임브리지.코넬.하버드 등 영미권 유명 대학의 출판국은 연간 1천여 종의 도서와 100여 종의 학술지를 출판하는 거대조직으로 자리잡고 있다.