• Title/Summary/Keyword: city zone

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A study on location planning of the on-street loading/unloading bays in the central business district (도심상업지역의 노상 하역공간 최적배치계획에 대한 연구)

  • Lee, Sang-Yong;Jung, Hun-Young
    • Journal of Korean Society of Transportation
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    • v.26 no.2
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    • pp.57-67
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    • 2008
  • Loading zone is necessary to central business district(CBD) due to freight trucks coming into inner city. Currently truck drivers in metropolitan area are forced to illegally park their freight trucks on the roads close to the business facilities because there is no or few loading zones available in the CBD. This situation would bring into traffic congestion and even might block local roads in the CBD. This study reviews the existing improvement plans in city logistics, and examines delivery characteristics related to freight trucks and drivers in Seomyeon, the central downtown of Busan. Also it conducts a location planning for on-street loading/unloading bay using a technical method for arranging loading space. This research estimated the number of parking and stop bays for truck's operation using queueing theory based on truck-service rate and arrival rate, and found locations with the minimum resistance function values for freight movement in arranging on-street loading/unloading bays.

A Study on the Concept and Methodology of the Zone-Based Landuse Information system Using Digital Maps; A Case of Pohang City (지형 수치지도를 활용한 표준분석구역 설정 및 토지이용 정보체계의 구축방법론)

  • 구자훈
    • Spatial Information Research
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    • v.6 no.2
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    • pp.169-182
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    • 1998
  • The Zone-Based. landuse Information System(ZBLIS) is an useful information system for city administrators and researchers for planning and analysis. The purpose of this study is to establish concept and methodology of the ZBLIS. The concept of Planning Analysis Zone(PAZ), as a basic unit of analysis, was defined to establish the ZBLIS. Then, various PAZs were suggested through a case study of Pohang city. Also, various useful attribute data were recommended in this study for ZBLIS. Digital Maps were used to establish ZBLIS. Among 730 subcategory items in the Digital Maps, some necessary items were selected for ZBLIS. A 84 items was recommended to be use of the ZBLIS. And 250 more items were recommended for more detailed analysis of the ZBLIS. While previous studies of landuse infonnatiom systems have focused on establishing Parcel-based Landuse Infonnation Systems, it is meaningful that this study is trying to recognize the significance of the ZBLIS and suggest the concept and methodology of the ZBLIS.

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Analysis on Social Welfare Value of District-Unit Plan for the Designated Rural Settlement Zone in the City Limits -A Case Study of Geumdoong Village Site, Cheongju City, Korea- (지구단위계획 수립의 후생가치 분석 -청주시 검둥골 취락지구를 중심으로-)

  • Yun, Ki-Bum;Jang, Min-Chul;Hawang, Hee-Yun
    • Journal of Korean Society of Rural Planning
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    • v.18 no.3
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    • pp.25-41
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    • 2012
  • The purpose of this study is to quantitatively analyze the social welfare value given to the designated rural settlement zone by the resident-participated site unit plan that the City of Cheongju is newly attempting to draft. Firstly, the costs and benefits from the site unit planning were estimated. Secondly, through literature review especially focussed on the benefit and cost estimation, on-site questionnaire was designed, and then sample residents of the qualifying sites were asked about their willingness to pay, which could make it possible to estimate the monetary value of its benefits by the contingent valuation method (CVM). Finally, the present value of net benefits (PVNB) was estimated through the derived costs and benefits. As a result of analysis, firstly, the present value of net benefits (PVNB) was found to be 7,641 billion won, which indicated that the implementation of district-unit plan would be able to cause sufficient social welfare value for the effected residents. Secondly, in examining the result of individual average amount for willingness to pay through the CVM, the area that benefited the most was found to be the road improvement. Thirdly, as a result of sensitivity analysis, the parameter with the most effects was the discount rate, which suggested that, in carrying out public projects, excessive market interest rates would not be appropriate.

A Study on Application & Evaluation of Riverbed Techniques for the Formation of Hyporheic Zone (하상간극수역의 형성을 위한 하상공법의 적용과 평가)

  • Choi, Jungkwon
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.16 no.6
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    • pp.119-133
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    • 2013
  • The purpose of this study is to develop riverbed techniques to activating ecological function of hyporheic zone. Hyporheic zone maybe simply defined as an active eco-tone between surface water and groundwater, which facilitates to exchange water, nutrients and aquatic habitat occur in response to variation in discharge and bed geomorphology. The aim of this study is to evaluate the effectiveness of an applied riverbed technique for two years since its installation in the hyporheic zone. The experimental riverbed technique has been implemented on Anyang stream penetrating Anyang city in Gyunggi province. The dimension of the installed structure is 5.0 m in width, 46 m in length. Bottom layer is filled with rip-rap covered with gabion. After the implementation of the technique, the study conducts follow-up monitoring in two years of between 2011 and 2012. The results of follow-up monitoring for two years are as follows:1) In Hydro geomorphic process, the riverbed technique maintains hydraulic stability despite of several flood events in 2011, 2012. 2) After transformation to form pool-and-riffle habitat, for aquatic community composed of freshwater fish, macro invertebrate, and attached algae, the species diversity and population gradually increased. 3) The riverbed technique achieved desired effect on enhancement of ecological function in hyporheic zone.

ANALYSIS OF FIRE CHARACTERISTICS IN APARTMENT BUILDING THROUGH FULL SCALE EXPERIMENT AND ZONE MODEL SIMULATION

  • Yoon, Myong-O;Park, Jin-Kook;Kim, Choong-Ik;Ryou, Hong-Sun;Kim, Jin-Gon;Kim, Myung-Bae;Choi, Jun-Seok;Kim, Kwang-Il
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 1997.11a
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    • pp.413-422
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    • 1997
  • Fire characteristics of a typical apartment building in Korea was studied through full scale experiment and zone model simulation. The fire was ignited at the living room and allowed to spread to other parts of a single unit in a five storied apartment building. Various data including temperatures, species concentrations, and images were collected in the experiment. A zone model(CFAST) was used to analyze the same apartment building that represents the average households in Korea. The results were compared with a full scale experiments. While CFAST allows one compartment involved with fire, the experiment allowed the fire to spread to other compartments. Therefore, the comparison between experimental data and Zone-Model data is valid until the living-room fire spread to other parts of the apartment. Flashover occurred at approximately 380 seconds in a fire experiment, and at approximately 420 seconds in Zone-Model. Based on all of data between experimental data and Zone-Model data, it is concluded that the safe escape time is about 250 seconds.

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Egypt's Science and Technology Parks Outlook : A Focus on SRTACity (City for Scientific Research and Technology Applications)

  • Abdel-Fattah, Yasser R.;Kashyout, Abdel-Hady B.;Sheta, Walaa M.
    • World Technopolis Review
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    • v.2 no.2
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    • pp.96-108
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    • 2013
  • Egypt has been known as the light house of science and innovation not only in the Middle East but to the world across ages. Recently, there have been many ups and downs that positioned Egypt in a lower rank that it actually deserves according to its long history. This review entitles the current condition of science, technology and innovation in Egypt and the consequent setting up of best practices of science and technology parks (STPs) experiences. Egypt's science, technology and innovation (STI) system is highly centralized and dominated by the public sector, with R&D happening mostly in state-run universities and research centers supervised by the Ministry of Higher Education and Ministry of Scientific Research. R&D indicators state that Egypt ranking is 40th worldwide for the published articles (around 10,000 papers in 2011), while the numbers of issued patents (350 local and 50 international in 2011) is still far beyond expected. STPs in Egypt are addressed in this review by three examples; smart village in Cairo, Investment zone in Borg El-Arab City and Technology Valley in Ismailia. The three models are discussed in details and a suggested road map for developing more STPs is estimated.

A Study on the Change of Traffic Accidents Around the Pedestrian Priority Zone (보행자 우선도로 개선 사업으로 인한 교통사고 변화에 대한 연구)

  • JANG, Jae-Min;LEE, Young-Ihn;KIM, Sukhee;CHOI, Hoi-Kyun
    • Journal of Korean Society of Transportation
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    • v.36 no.2
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    • pp.112-128
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    • 2018
  • We are implementing pedestrian priority zone policy to certain districts to reduce greenhouse gas and to develop eco-friendly city which has more focus on pedestrians' walking environment. This policy has contributed to citizens' satisfaction level with improved public transportation service as well as more spacious streets for walk. Despite highly positive influence of pedestrian priority zone policy to the walking environment, we need to anticipate the impact of this to traffic environment as it may have bad effect to the overall traffic flow around the zone where the policy is implemented. This research has analyzed the change of characteristics of traffic accidents around the eco-traffic area of Hang-Gung dong, Suwon city, to understand impact of the pedestrian priority zone policy to the traffic surroundings, with pre-post analysis methodology. As a result, number of accidents related to pedestrians showed decrease as pedestrian priority zone is designed operated with focus to pedestrians. But accidents related illegal U-turn and violation of the traffic signal showed (significant) increase as there was a restriction of turns and decrease of overall traffic speed. To prevent the accidents above, we need to notice drivers to pay special attention before the pedestrian priority zone event, and information from this research should be given to the drivers through safety signs and mobile application at the place near to the event.

A Study on the Development of City specialization Model Using Ubiquitous Technology (유비쿼터스 기술을 이용한 도시특화모델 개발방안 연구)

  • Kang, Young-Mi;Kang, Joon-Mook
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2007.04a
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    • pp.427-430
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    • 2007
  • The Shiwa is developed by banwol special area and it is holding a many problem for a residential area. It controls about 80% of the waste in the capital region area and it is urgent to life environment improvement. thus, It is necessary to effort for the development of ecological intelligence city from the planning of a new town. In this study, it is intended to create the City specialization Model of a shiwa zone using Ubiquitous Technology which is considered IT-based service. It is aimed to provide city life style which is fine and convenient

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Effect of Water Quality Improvement by Seawater Exchange Breakwater Install (해수교환 방파제 설치에 따른 수질개선효과)

  • Han, Dong-Joon;Lee, Dal-Soo
    • Journal of environmental and Sanitary engineering
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    • v.21 no.3 s.61
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    • pp.61-72
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    • 2006
  • This study was carried out for verification of efficiency of seawater exchange breakwater which was installed in joomoongin harbor for the first time in our country. The joomoongin harbor, where seawater exchange breakwater has been constructed, shows typical for fishery and tourist port city specifics of greatest pollutants discharge volume in spring and summer, when tourist inflow and fishery activity is most vigorous. On the East Sea seawater flux through seawater exchange breakwater for the smallest waves (up to 0.5 m) was found out to be $1,526-3,052m^3/day$. After construction of seawater exchange breakwater, Zone 1 and Zone 2 of stagnant water inside the port were found to be a lot improved. Zone 3, adjacent to outport area, was found to be lower comparing with Zone 1 and Zone 2. The results of statistical analysis show that comparing with water quality improvement effect before and after seawater exchange, water quality after installation of seawater exchange breakwater became much better, primarily because of physical change around the harbour.