• 제목/요약/키워드: national highway

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고속도로(高速道路) 절토(切土)비탈면의 식생천이과정(植生遷移過程)에 관(關)한 연구(硏究) - 중부고속도로(中部高速道路)를 중심(中心)으로 - (A Study on Plant Succession Stages of Highway Cut-slope - In case study on Joongbu-highway -)

  • 우보명;김남춘;김경훈;전기성
    • 한국산림과학회지
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    • 제85권3호
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    • pp.347-359
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    • 1996
  • 이 연구(硏究)는 고속도로(高速道路) 절토(切土)비탈면에 1차적으로 도입된 식생의 생육상황(生育狀況)과 자연상태로 방치된 절토(切土)비탈면의 2차식생천이상황(次植生遷移狀況)을 파악하기 위하여 1989년과 1995년에 중부고속도로(中部高速道路)를 대상으로 실시되었다. 절토(切土)비탈면에 자연 침입하여 생육이 왕성한 초본류(草本類)는 참억새, 쑥, 솔새 등이었으며, 목본류(木本類)로는 산딸기, 아까시나무, 칡, 소나무 등이었다. 또한 녹화공법 적용 단계에서 파종된 식생중 외래목초류로는 Weeping lovegrass의 생육이 우세하였다. 절토(切土)비탈면에 평떼붙이기공법에 의해 적용된 잔디(Zoysia japonica)의 생육비율은 비탈면 조성후 유지관리(維持管理)가 수반되지 않은 상태에서는 현저하게 감소하거나, 침입식생에 의해 피압 소멸되었으며, 주변식생의 영향으로 천이가 진행되어 초본류(다년생초본(多年生草本), 1년생초본(年生草本))의 비율은 감소하였으며, 목본류(관목류(灌木類), 교목류(喬木類))의 출현비율이 증가하였다. 따라서 비탈면에 적용된 식생은 계속적인 유지관리(維持管理)가 수반되어야 하며, 녹화공법(綠化工法) 적용시 생활력(生活力)이 강한 초본류(草本類)(야생초화류(野生草花類) 포함) 및 목본류(木本類)의 도입이 요망된다.

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고속도로 절·성토 비탈면 녹화 공법의 적용 실태 연구 (An Analytical Study on the Revegetation Methods for Highway Slopes)

  • 김남춘;송호경;박관수;전기성;이상화;이병준
    • 한국환경복원기술학회지
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    • 제10권2호
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    • pp.1-15
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    • 2007
  • A variety of revegetation methods are being utilized and developed. However, most of revegetation methods used on highway slopes in Korea are based on foreign-introduced plant varieties to stabilize road surfaces and to administer afforestation for surface covering at an earlier phase. Therefore. it results in various problems. such as failure to achieve harmony with the surrounding vegetation and 10 cause re-denudation of slopes as the foreign-in introduced plant varieties wane out from 2~3 years after hydro-seeding, etc. In addition, some of the revegetation plants seeded in the earlier phase grow excessively high, thus causes successional problems, such as to inhibit the invasion of the secondary vegetation from the surrounding areas, etc. Therefore, in this study, 160 slopes located in the nationwide express highways have been investigated and analyzed in order to produce basic data for restoration of ecological environment in slopes created on a long-term basis by investigating and analyzing locational characteristics of cut and filled slopes in express highways, status of revegetation methods, characteristics of soil and plant-ecological environment. 1. Investigation on cut and embanked slopes in express highways was carried out in the total of 160 locations, which include 108 cut slopes and 52 embanked slopes. As a whole, the most frequently used revegetation method was seed spray, which was found to be used in the total of 55 target slops investigated. 2. Planting method of Wistaria floribunda applied to some of the blasted rock zones was found to cause damages as Wistaria floribunda trailed up the surrounding vegetation and the secondary invaded trees. In order to prevent this, this method must be used only in the lowest parts of large-sized slopes. Also, it will be required to administer continuous management and maintenance in the areas already planted with this plants. 3. The areas of blasted rock and ripping rock slopes were applied with coir net (net + seeding) method. However, many of these areas failed in achieving ground covering. Most areas where revegetation was in progress, they were covered with Eragrostis curvula(Weeping lovegrass) only. In areas with soil, such as decomposition of granite, where afforestation is difficult. In this slopes, soil base must be improved by hrdroseeding with thin-layer vegetation base application methods in order to achieve success in afforestation with native plants. 4. Woody species, rather than herb species, are more helpful in stabilization of slope surfaces. Therefore, it is important to be able to grow and protect woody species on highway slopes. Growth of woody vegetation is most largely influenced by soil depth. Thus, when hydro-seeding woody plants, it is recommended to apply at the upper layer of the slopes, which is capable to sufficiently provide the fundamentals required in plant growth.

동적 EMC를 이용한 고속도로 초기우수 처리 기준 산정 (Determination of First Flush Criteria in Highway Stormwater Runoff using Dynamic EMCs)

  • 김이형;이은주;고석오;김성길;이병식;이주광;강희만
    • 한국물환경학회지
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    • 제22권2호
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    • pp.294-299
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    • 2006
  • The Ministry of Environment in Korea has introduced Total Pollution Load Management System (TPLMS) in major 4 large rivers to protect the water quality from possible pollutants. In order to successfully achieve the TPLMS, the nonpoint source should be controled by applying the best management practices in highly polluted areas. Of the various nonpoint sources, the highways are stormwater intensive landuses because of its high imperviousness and high pollutant mass emissions. The EMC (Event Mean Concentration) is an important parameter to correctly determine the pollutant mass loadings from nonpoint sources. However, it has wide ranges because of various reasons such as first flush phenomenon, rainfall and watershed characteristics. Even though the EMC is closely related to the first flush phenomenon, the relationship have not proven until present. Therefore, in this paper, the dynamic EMC method will be introduced to clearly make the relationship between EMC and first flush phenomenon. Also by applying the dynamic EMC method to monitored data, we found that the highly concentrated stormwater runoff was washed off within 20~50 minutes storm duration. The first flush criteria for economical treatment was also determined to 5~10 mm (mean=7.4 mm) as a cumulative rainfall.

집산로가 설치된 고속도로 위빙구간 유출입부 설계기준 제시 (Determination of Weaving Section at Highway Collector-Distrivutor)

  • 오재철;김윤미;이형무;하태준
    • 대한토목학회논문집
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    • 제38권6호
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    • pp.879-885
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    • 2018
  • 고속도로 위빙구간은 진입과 진출차량에 의한 상충이 발생되는 지점으로 본선과의 영향을 최소화하기 위하여 집산로를 설치토록 하고 있다. 집산로의 설계속도는 50km/h이나 실제 운전자는 설계속도에 맞춰 적정한 감속이 이루어지지 않고 있다. 따라서 본 연구에서는 운전행태, 설계기준차량제원, 운전자의 시야각등을 고려하여 차량의 안전한 진출입을 위해 고어 노면표시 끝에서 합류지점까지 적정 이격거리를 검토하였으며 분석결과 합류가능지점에서 약 60m의 이격거리가 필요한 것으로 분석되었다. 향후 본 연구결과를 집산로가 설치된 위빙구간에 적용시 진출입 차량간 상충으로 인한 운전자의 안전성 증진에 기여할 것으로 판단되며 집산로가 설치된 고속도로 위빙구간의 노면표시 설치기준으로 재정립 될 것으로 기대된다.

도로 중앙분리대용 후드장식형 수직축풍력발전기 연구 (A Study of Hood-Type Vertical Axis Wind Turbine Embedded to Highway Median Strip)

  • 이종조;임재규
    • 조명전기설비학회논문지
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    • 제27권1호
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    • pp.24-34
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    • 2013
  • This paper introduces the study of hood-type wind turbine embedded on highway median strip. Recently, many studies are being made to apply to small wind turbine in city. This study is wind turbine producing electricity generated from the wind by running cars. In order to analyze wind generated by running cars, we measured experiments using running cars and buses. Also, using CFD and interpreter program, we analysis wind turbines performance and applied to the twist-sabonius blade. This wind turbine attached to safety lamp on the road is produced to use electricity generated through the wind tunnel experiment. In this paper results, this wind turbine system is expected to produce the power source installed the heat ray and safety lamps on the road.

일반국도의 수행 기능 분석에 의한 적정 설계기준 연구 (National Highway's Design Criteria Based on Analysis of Functional Classification)

  • 강원의
    • 대한교통학회지
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    • 제19권1호
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    • pp.53-61
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    • 2001
  • 본 연구는 지방지역에서 주간선도로 및 보조 간선도로의 기능을 수행하도록 규정된 일반국도의 수행기능을 통계적 방법으로 유형화하고, 각 유형별 교통특성 규명에 의한 일반국도의 적정 설계기준을 제안하였다. 전국의 도로망에서 일반국도가 수행하는 기능은 크게 3가지로 유형화할 수 있음을 통계적 방법으로 검증하였으며, 각 유형별 도로 구간의 교통특성 조사 결과, 당초 간선도로로 건설된 일반국도가 그 역할을 충분하게 수행하지 못하는 것으로 판단할 수 있었다. 이러한 문제점의 개선 대안으로 일반국도가 간선도로로서의 역할을 수행할 수 있도록 기능별 설계기준의 차별화와, 목표통행속도 개념을 반영한 부속시설 정비 기준을 제안하였다.

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