• Title/Summary/Keyword: Traffic Accessibility

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An Analysis of the Importance of Accessibility for High Speed Railway : Stated-Preference Approach (고속철도에 있어서 접근도의 중요성 분석에 관한 연구)

  • Park, D.R.;Nam, K.C.
    • Journal of Korean Port Research
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    • v.8 no.1
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    • pp.49-63
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    • 1994
  • The introduction of high speed railway system a significant impact on the conventional inter-urban transport systems by inducing a significant traffic from the existing modes as well as generating a new traffic. It is also closely related to intra-urban transport systems as the inter-urban traffic has its origin and destination in a city. In the context of mode choice, for high speed transport systems, it has been argued that the accessibility is the most important attribute conceived by users. Thus this study attempts to analysis the importance of the accessibility for the planned high speed railway systems particularly with respect to the location of Busan Station. For this Stated-Preference approach, which is considered appropriate for such study, is adopted, and disaggregate binary logit models for mode choice between the high speed railway and air service in Busan-Seoul corridor are developed. The elasticities for cost and service variables are also derived. The results disclose that cost is the most important which is inconsistent with most previous studies ; accessibility has considerable impact on the choice ; and frequency however has a little impacts. Concerning location of the high speed railway station the results suggest that the longer the access distance is, the more important the accessibility is. This implies that the connection of reliable access transport services such as underground are essential between the terminal and urban center.

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A Research on Analyzing Current Status and Ways to Improve Access Transportation to Incheon International Airport (인천국제공항 접근교통시설의 현황분석 및 개선방안에 관한 연구)

  • Suh, Yang Hwan;Kim, Kyong Sook;Han, Soon Wook;Yoon, Sung Hyun
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.20 no.4
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    • pp.106-114
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    • 2012
  • As Incheon International Airport(IIA) is located in an island 50-km away from Seoul, various travel equipments for access are required. So far two connecting bridges are constructed funded by civilian funds. For the further bridge construction, the reduction of forecast traffic amount and the government subsidy for the civilian funds are big issues. Comparing the access traffics of IIA to those other competing airports, traffic conditions inside the airport are superior to other competing airports from the management point of view, as utilization conditions and equipment capacities are periodically monitored and evaluated to set up comprehensive countermeasures following constructing by stages. However, while the accessability to IIA is very important, as IIA is built on an island the conflicts between near-by developers and traffic facility operators make further bridge construction difficult. As improving the accessibility to an airport is not easy to achieve only by the IIA management's efforts, the central government level authorities should organize a committee with agencies concerned and analyze the characteristics of access traffic periodically to suggest reform measures for each organization concerned to implement appropriate undertakings at apt timing. For the future, central government's level empirical research on the airport accessibility for synthetic and systematic plan set-up is expected.

Extraction of Some Transportation Reference Planning Indices using High-Resolution Remotely Sensed Imagery

  • Lee, Ki-Won
    • Korean Journal of Remote Sensing
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    • v.18 no.5
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    • pp.263-271
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    • 2002
  • Recently, spatial information technologies using remotely sensed imagery and functionality of GIS (Geographic Information Systems) have been widely utilized to various types of transportation-related applications. In this study, extraction programs of some practical indices, to be effectively used in transportation reference planning problem, were designed and implemented as prototyped extensions in GIS development environment: traffic flow estimation (TFL/TFB), urban rural index (URI), and accessibility index (AI). In TFL/TFB, user can obtain quantitative results on traffic flow estimation at link/block using high-resolution satellite imagery. Whereas, URI extension provides urban-rural characteristics related to road system, being considered one of important factors in transportation planning. Lastly, AI extension helps to obtain accessibility index between nodes of road segments and surrounding district areas touched or intersected with the road network system, and it also provides useful information for transportation planning problems. This approach is regarded as one of RS-T (Remote Sensing in Transportation), and it is expected to expand as new application of remotely sensed imagery.

Concepts and Measures of Accessibility (접근성의 개념과 측정치)

  • 김광식
    • Journal of Korean Society of Transportation
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    • v.5 no.1
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    • pp.33-46
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    • 1987
  • The main purpose of this paper is to define the concepts and measures of accessibility used in various disciplines. To do this, a significant literature review was conducted particularly in fields of traffic engineering, transportation planning, urban economics, urban planning, and geography of transportation. The result indicates that each discipline uses the concept of accessibility in a slightly different perceptual framework and thus shows somewhat ambiguous definition. The result also indicates that accessibility should serve as a tool to integrate transportation planning into the other connected disciplines.

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A Study on the Effect of Travel Time and Cost by Means on the Mode and Destination Choice of a Commuter by the Household Income Class - Based on the Utility-Based Accessibility Approach - (통행수단별 소요시간과 비용이 가구소득계층별 통근통행자의 수단 및 목적지 선택에 미치는 영향 분석 - 효용기반 접근도 개념에 근거하여 -)

  • Jang, Seongman
    • Journal of Korea Planning Association
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    • v.54 no.1
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    • pp.52-66
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    • 2019
  • Travel is a factor that stimulates the vitality of the urban and is widely used as an indicator of sustainable growth of the region. In Korea, however, no studies has been made to predict changes in traffic and calculate the accessibility of the region by comprehensively considering the socio-economic conditions of the travelers. The purpose of this study is to classify commuters according to the household income and to analyse the traffic characteristics of each class. The analysis results are aggregated into two. First, the analysis of study found different transport characteristics for different income classes. This is the result that underpins the argument of a previous study that suggested that a discriminatory approach is necessary for each income in determining the accessibility of the region. Second, this study calculated utility values differently for each income class based on the transit time and cost required between each zone. Through these measures, transport characteristics were analyzed by income class using indicators that considered transportation infrastructure, and socio-economic conditions of the travelers. This study is meaningful in that it provided the basis for calculating the accessibility that could take into account the activities of the housing consumers in establishing domestic housing policies.

Analysis on the Korean Highway in 2011 and 2017 Using Algorithms of Accessibility indices (접근성 지표의 알고리즘을 이용한 2011년과 2017년의 우리나라 고속도로 분석)

  • Lee, Gwangyeon;Park, Kisoeb
    • Journal of the Korea Society for Simulation
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    • v.27 no.4
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    • pp.9-18
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    • 2018
  • This paper proposes new algorithms of accessibility indices to analyze the connectivity of the Korean highway network. First of all, we find a transportation network that presents Korea's highway network in graphs in 2011 and 2017. And we analyze and compare the nation's highway network in 2011 and 2017 using concepts such as associated number, the relative distance, the accessibility, the degree of connectivity, the index of dispersion, the diameter of graph theory. To do this, an algorithm is presented which can easily obtain various accessibility indices from a given transportation network. Using the simulation results of this study, we can find city that is the center of traffic in the highway transportation network. In addition, cities that are included in the network but are relatively underdeveloped can be found and used as basic data for enhancing the connectivity of the nationwide traffic in the future. Moreover, the proposed algorithms of accessibility indices, which are modeled on highway transport networks, can help identify the accessibility space structure of each city and provide criteria for efficient and reasonable selection of alternatives in various regional planning processes, including transportation.

A Study of Improvement of the Accessibility of Marine Tourism by Expansion of Traffic Network: A focused on opening of Seoul-Gangneung KTX (국내 광역 교통망 확충에 따른 해양관광 접근성 개선에 관한 연구: 강릉선 KTX 개통 사례를 중심으로)

  • Choi, Il-Sun
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2019.05a
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    • pp.169-170
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    • 2019
  • Domestic marine tourism has been greatly influenced by traffic accessibility. The purpose of this study is to provide a way to improve the plan of marine tourism in order for expanding traffic network. In particular, with the successful hosting of the 2018 PyeongChang Winter Olympic Games and the opening of Seoul-Gangneung KTX.

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Changes of Time-Distance Accessibility by Year and Day in the Integrated Seoul Metropolitan Public Transportation Network (서울 대도시권 통합 대중 교통망에서 연도별 및 요일별 시간거리 접근도 변화)

  • Park, Jong Soo;Lee, Keumsook
    • Journal of the Economic Geographical Society of Korea
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    • v.21 no.4
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    • pp.335-349
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    • 2018
  • This study analyzes the effect of the changes in traffic environments such as transportation speeds on the time-distance accessibility for the public transportation passengers. To do this, we use passenger transaction databases of the Seoul metropolitan public transportation system: one week for each of the three years (2011, 2013, and 2015). These big data contain the information about time and space on the traffic trajectories of every passenger. In this study, the time-distances of links between subway stations and bus stops of the public transportation system at each time are calculated based on the actual travel time extracted from the traffic-card transaction database. The changes in the time-distance accessibility of the integrated transportation network from the experimental results can be summarized in two aspects. First, the accessibility tends to decline as the year goes by. This is because the transportation network becomes more complicated and then the average moving speed of the vehicles is lowered. Second, the accessibility tends to increase on the weekend in the analysis of accessibility changes by day. This tendency is because the bus speeds on bus routes on the weekend are faster than other days. In order to analyze the accessibility changes, we illustrate graphs of the vehicle speeds and the numbers of passengers by year and day.

Analysing Potential Improvement of Public Transit Services in OD Level Using Time-Distance Accessibility and Smartcard Traffic Volume (시간거리 접근성과 교통카드 기반 통행량을 이용한 OD별 잠재적 대중교통 서비스 개선량 분석)

  • YANG, Hyun-Jae;NAM, Hyun-Woo;JUN, Chul-Min
    • Journal of the Korean Association of Geographic Information Studies
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    • v.21 no.2
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    • pp.80-93
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    • 2018
  • Public transit services are generally analyzed based on the correlation of demand and supply. The computation of supply uses accessibility while demand uses travel demands estimation based on residential population. However, the traditional demand estimation has a limitation in analysing in micro-scale compared to the smartcard data traffic. This study analyzed potential improvement of public transit services using smartcard traffic data. The supply of transportation was defined using time distance accessibility. Also, time loss was calculated in those origin destination(OD) pairs where time distance accessibilities are relatively low. The proposed method was applied at Seoul. The results showed that the areas where OD pairs need improvement include Seodaemun-gu, Guro-gu and Nowon-gu.

Effects of Neighborhood Environment on Women's Neighborhood Satisfaction, Neighborhood Attachment and Housing Mobility - An Empirical Study of Asan City in the South Chungcheong Province - (여성들의 동네만족도와 동네애착, 이주의사에 영향을 미치는 근린환경특성에 대한 실증분석 - 충청남도 아산시를 대상으로 -)

  • Park, Hyo-Sook;Lee, Kyung-Hwan
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.34 no.1
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    • pp.71-81
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    • 2018
  • The purpose of this study is to develop neighborhood assessment tools from the perspective of women in order to evaluate neighborhood environments and suggest better policies and planning practices for women-friendly neighborhood environments. To do so, we analyze correlations between women's quality of life and the neighborhood environment. Specifically, we gave female participants a mapping survey, interview, and questionnaire to collect data targeting women living in Onyang 2-dong and 5-dong in Asan city. First, we developed a neighborhood assessment tool derived from an extensive literature review and particular case studies. The mapping and interview surveys indicated that specific aspects neighborhood life needed to be improved in a similar area. In particular, women complained about Onyangoncheon station, a commercial area, and detached house area. Second, analysis of the neighborhood environmental factors affecting women's neighborhood satisfaction, crime safety, traffic and walking environment, accessibility of living facilities, green and public spaces and childcare environment were statistically significant. Of these, the inclusion of green and public spaces was the most influential factor. Third, the neighborhood environmental factors affecting women's neighborhood attachment, crime safety, traffic and walking environment, accessibility of living facilities, green and public spaces and childcare environment were statistically significant. Of these, accessibility of living facilities appeared to be the most influential factor. Fourth, the neighborhood environmental factors affecting women's housing mobility decisions, crime safety, traffic and walking environment, accessibility of living facilities, green and public spaces and childcare environment were statistically significant. Of these, childcare environment was the most influential factor.