發(fā)布時間：2019-02-22 15:01

【摘要】：可達(dá)性是度量一個區(qū)域計劃是否合理的一項(xiàng)重要指標(biāo),可反映移動個體在所給定的時間范圍內(nèi)利用某種交通工具可以達(dá)到某個位置的難易程度。近年來,可達(dá)性的計算已成為時間地理學(xué)研究中的一個熱點(diǎn)問題。其中,基于時空棱柱的可達(dá)性計算研究也已取得不少成果,提出了幾種常見的可達(dá)性計算方法。但這些度量沒有考慮到:(1)個人調(diào)整活動的能力—應(yīng)對受限制旅行模式;(2)旅行時間感知的不確定性;(3)旅行時間的時間變異性;(4)旅游信息對可達(dá)性的影響。本文主要研究以下內(nèi)容:1.介紹可達(dá)性和時間地理學(xué)的基礎(chǔ)知識,并闡述可達(dá)性研究的理論框架以及時空棱柱的概念與應(yīng)用。2.論述時空棱柱在可達(dá)性度量中的應(yīng)用問題。具體地,討論基于地理信息系統(tǒng)來定位時空棱柱中所包含的醫(yī)療保健設(shè)施,并以美國俄勒岡州波特蘭的相關(guān)數(shù)據(jù)為例來展示如何度量醫(yī)療保健設(shè)施的可達(dá)性和從實(shí)際角度度量可達(dá)性。3.用數(shù)值模擬來研究和說明現(xiàn)有可達(dá)性計算方法的不足,并給出有效的可達(dá)性度量。結(jié)果表明,給出的可達(dá)性度量是能反映喜歡活動的個體其社會包容性的一個有用指標(biāo);此外,發(fā)現(xiàn)可達(dá)性受限于時間延遲處罰并且可達(dá)性能確定所提供的旅行時間信息的影響大小。
[Abstract]:Reachability is an important index to measure whether a regional plan is reasonable. It can reflect the degree of difficulty that a mobile individual can reach a certain position by using a certain vehicle within a given time range. In recent years, the calculation of reachability has become a hot issue in the study of time geography. Among them, many achievements have been made in the research of reachability calculation based on spatio-temporal prism, and several common methods of reachability calculation are put forward. However, these measures do not take into account: (1) the ability of individuals to adjust their activities-coping with restricted travel patterns; (2) the uncertainty of travel time perception; (3) the time variability of travel time; (4) the impact of tourism information on accessibility. This paper mainly studies the following contents: 1. This paper introduces the basic knowledge of accessibility and temporal geography, and expounds the theoretical framework of accessibility research and the concept and application of spatio-temporal prism. 2. This paper discusses the application of spatiotemporal prism in the measurement of reachability. Specifically, to discuss the location of health-care facilities contained in space-time prisms based on geographic information systems, Taking the relevant data from Portland, Oregon, USA as an example, this paper shows how to measure the accessibility of health care facilities and how to measure accessibility from a practical point of view. The shortcomings of the existing reachability calculation methods are studied and explained by numerical simulation, and an effective reachability metric is given. The results show that the reachability measure given is a useful index to reflect the social inclusiveness of the individual who likes the activity. In addition, it is found that accessibility is limited by time delay penalty and accessibility determines the impact of the travel time information provided.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：P208

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