• Title/Summary/Keyword: Urban population

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Information for Urban Risk Management: the Role of Remote and Close Sensing

  • Hofstee, Paul;Genderen, John van
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.162-164
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    • 2003
  • The multi-disciplinary research project Strengthening Local Authorities in Risk Management (SLARIM), initiated by ITC, includes three case study cities in Asia. An important question is: what are the essential data for risk management and how to access such data. The role of common sources (e.g. census data), data derived from remote sensing (high-resolution satellite imagery, aerial photos), and data from close sensing (field observation, including mobile GIS) to acquire essential risk management data will be discussed. Special attention is given to the question of the minimum area and to disaggregating population data. A few examples are given of Kathmandu / Lalitpur, Nepal.

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Discovery of Urban Area and Spatial Distribution of City Population using Geo-located Tweet Data (위치기반 트윗 데이터를 이용한 도심권 추정과 인구의 공간분포 분석)

  • Kim, Tae Kyu;Lee, Jin Kyu;Cho, Jae Hee
    • Journal of Information Technology Services
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    • v.18 no.1
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    • pp.131-140
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    • 2019
  • This study compares and analyzes the spatial distribution of people in two cities using location information in twitter data. The target cities were selected as Paris, a traditional tourist city, and Dubai, a tourist city that has recently attracted attention. The data was collected over 123 days in 2016 and 125 days in 2018. We compared the spatial distribution of two cities according to the two periods and residence status. In this study, we have found a hot place using a spatial statistical model called dart-shaped space division and estimated the urban area by reflecting the distribution of tweet population. And we visualized it as a CDF (cumulative distribution function) curve so that the distance between all the tweets' occurrence points and the city center point can be compared for different cities.

A Study on the Design Direction of the Prefab Affordable Housing for the Urban Regeneration in Deteriorated Residential Area - Focused on the Gwang-Myeong 3-dong, Kunggi-do, South Korea - (노후주거지 재생을 위한 모듈러 지원주택 계획 연구 - 광명 3동 광이로 일대를 중심으로 -)

  • Yoo, Hae-Yeon;Hyun, Sun-Yung
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.11
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    • pp.35-42
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    • 2019
  • The purpose of this study was to study social housing and incubating module planning for the urban regeneration in the deteriorated residential areas. The site of this study is Gwange-ro Gwangmyeong 3-dong, where old residential areas are concentrated, and there are problems in the decreasing number of young people and the aging population and elderly population. In this study, the necessity of supporting housing according to local characteristics and various programs and facilities are proposed, and various alternatives of modular housing are derived. As a result, it proposed verification of local regeneration and activation and orientation of social housing and local regeneration programs using modularity in the future.

A Study on the Classification and Causative Factor of Vacant Houses - Focused on the Incheon Metropolitan City - (빈집발생의 유형과 발생에 영향을 미치는 요인에 관한 연구 - 인천광역시 사례를 중심으로 -)

  • Lim, Chang-Il;Na, In-Su
    • Journal of KIBIM
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    • v.10 no.1
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    • pp.23-29
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    • 2020
  • The vacant houses commonly observed in urban aging are considered to be representative signs of urban decline. Vacant houses are themselves vulnerable to security, and in particular, they are exposed to disasters due to poor management, which can accelerate the decline of the area. This study is to classify the area and analyze the causes and characteristics of the occurrence of vacant houses by type based on the data through the survey on the vacant houses in Incheon. This research analyze vacant house data survey so to characterized and categorized types of vacant houses. The criteria of vacant houses analysis are population density, population growth, aging extent. In conclusion there are four types of region in Incheon area according to housing types, hazard classes, building age and building areas. Type A is inner city, type B is mixed, type C is expandable and type D is unsular types.

Analysis on Characteristics of Time Allotments for Activities of Rural Elder Population (생활시간 분석을 통한 고령 농가의 정주활동구조 연구)

  • Lee, Yoonhee;Bae, Yeonjoung;Lee, Jimin;Lee, JeongJae;Suh, Kyo
    • Journal of Korean Society of Rural Planning
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    • v.18 no.4
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    • pp.91-101
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    • 2012
  • The time management and allotments for various activities of daily life is much different by age groups. This study analyzes time allotments of different age groups for various activities of daily life to figure out the change of main activity by aging through 2009 time use survey by National Statistical Office. Especially we focus on time allotments of rural elderly population and intangible factors for life quality of people instead of physical and environmental elements. The results show that there is a large gap of time allotments for paid and unpaid working time of rural and urban elderly population. Whereas the time for leisure of elderly women in rural areas is much shorter than that of urban elderly women and rural elderly men spend more time to provide community services and help to other households. However, the percentage leisure time of rural elderly people for passive activities such as TV, radio, magazine etc. is longer than that of urban elderly people. We hope that our analysis data could be used for developing new policies and project to improve the life quality of rural elderly population.

Time Trends of Nasopharyngeal Carcinoma in Urban Guangzhou over a 12-Year Period (2000-2011): Declines in Both Incidence and Mortality

  • Li, Ke;Lin, Guo-Zhen;Shen, Ji-Chuan;Zhou, Qin
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.22
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    • pp.9899-9903
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    • 2014
  • Nasopharyngeal carcinoma (NPC) is an uncommon disease in most countries but occurs with much greater frequency in southern China. This study aimed to examine the secular trends of NPC in urban Guangzhou over the time period of 2000-2011 using data from the Guangzhou Cancer Registry. Age-adjusted annual incidence rates of NPC were calculated by the direct method using the WHO World Standard Population (1960) as the reference. The average annual percentage change (AAPC) was used as an estimate of the trend. A total of 7,532 new cases of NPC and 3,449 related deaths were registered. In both genders, the peak incidence occurred in the 50- to 59-year age group, and this age distribution pattern remained similar throughout. The AAPC in NPC incidence rates was -3.26% (95% CI: -5.4%--1.1) for males and -5.74% (95% CI: -8.9%--2.5) for females, resulting in a total decrease of 39.3% (from 22.14 to 13.44 per 100,000 population) for males and 48.6% (from 10.1 to 5.18 per 100,000 population) for females over this 12-year period. The AAPCs in NPC mortality rates were -4.62% (95%CI: -3.5%--5.7) for males and -6.75% (95% CI: -5.2%--8.3) for females, resulting in a total decrease of -46.1% (from 12.1 to 6.54 per 100,000 population) for males and 51.7% (from 4.14 to 2.00 per 100,000 population) for females. The age-adjusted incidence and mortality rates of NPC declined during 2000-2011 in urban Guangzhou but remained high. Future efforts to improve prevention, early detection and treatment strategies are needed.

Application of GIS for the Visualization of Urban Demography in Kitakawachi Region, Japan

  • Shrestha, Sunil Babu;Taniguchi, Okinori
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.66-71
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    • 2003
  • This study investigates the spatial patterns of distributed population in terms of population density, age structure, sex structure and family structure in Chou (smallest political city boundaries) of seven cities of Kitakawachi region. This displays the population dynamics of those cities from 1955 to 1995. It demonstrates how the populations of the cities are distributed with topography and with respect to the train stations. The demographic characteristics of the cities are visualized utilizing Arc View GIS capabilities with new visualizing technique in 3D environment based on data from Pasco Digital Map 2000.

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Risk Acceptability and Criteria for multiple fatality in Urban disaster (도시재해의 위험성 수용한계와 위험성 범주의 선택)

  • 노삼규
    • Fire Science and Engineering
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    • v.11 no.1
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    • pp.11-19
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    • 1997
  • The paper review of the methods used to present in a quantitative way of risk to the public in the vicinity of hazardous operation within urban area. The study concentrated on the calculation, presentation and interpretation of societal risk where multiple concerned population at large. It is also compared the way to use of risk criterias in various countries where the different population density concerned. It is recommended societal risk criteria need to be vastly apply to the exposed population.

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Analyzing Pedestrian Characteristics Using the Seoul Floating Population Survey: Focusing on 5 Urban Communities in Seoul (서울시 유동인구조사자료를 활용한 보행특성 분석: 서울시 5개 생활권역을 중심으로)

  • Lee, Hyang Sook;Kim, Ji Yoon;Choo, Sang Ho
    • Journal of Korean Society of Transportation
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    • v.32 no.4
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    • pp.315-326
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    • 2014
  • This paper analyzes and compares the pedestrian characteristics of 5 urban communities with 2012 Seoul floating population survey data. First of all, differences in total pedestrian volumes and time distribution of the volumes are compared across the 5 urban communities and the effects of pedestrian road properties are investigated. Then, we conduct a regression analysis to find factors influencing pedestrian volume according to the type of urban community and day of week. As results, the urban community had the greatest volume and the volume increased significantly at lunch time. Center bus lane, bus stop, and crosswalk lead to more trips in the urban community, while opposite patterns occurred in the other communities. Less slopes and commercial region areas caused more trips in all communities. Regression analysis results showed that a variety of variables including demographic indices, land use type and pedestrian road properties differently affect pedestrian volumes in individual urban communities. The research can be used as basic data to establish polices for pedestrian environment improvement.

Metabolic Syndrome and Its Related Factors among Korean Elderly in Urban and Rural Areas

  • Oh, Chorong;Kim, Hak-Seon
    • Culinary science and hospitality research
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    • v.22 no.1
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    • pp.32-41
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    • 2016
  • The accelerated aging population may lead to the prevalence of metabolic syndrome and increase in medical costs as well. The aim of this study is to investigate the association with prevalence of metabolic abnormalities and its components in urban/rural area among Korean elderly. We examined the association between metabolic abnormalities and urban/rural area with data from the 2009 Korean National Health and Nutrition Examination Survey. The subjects were 1,622 elderly aged 65 years or over. The sixty percent of Korean elderly reside in urban and 40 % in rural. Rural residents were significantly lower income and less educated than urban residents. But there was no significant different in nutritional factors. They showed significantly 26% lower likelihood of having metabolic syndrome (0.578-0.950, p=0.018) compared with urban residents. Urban residents were associated with higher prevalence of metabolic syndrome than rural residents. This results will contribute to develop strategy for prevention metabolic syndrome for Korean elderly according to urban/rural area.