【摘要】：城市公園是城市公共服務體系的重要內(nèi)容,是城市居民休閑、游憩的重要場所,具有生態(tài)、社會、經(jīng)濟等多重功能。城市公園可達性成為體現(xiàn)公平和平等成為衡量城市現(xiàn)代化建設水平的重要指標。研究城市公園可達性衡量城市公園服務范圍大小,為城市公園發(fā)展提供參考,提升城市公園服務功能具有重要意義。本文利用Arcgis平臺,對雅安市雨城區(qū)中心城區(qū)的城市公園可達性進行探討,通過網(wǎng)絡分析法對現(xiàn)狀和遠景兩個時期的城市公園在步行、自行車、機動車方式下的可達性進行研究,并對三種交通方式下的可達性成果進行縱向、橫向?qū)Ρ炔⒔Y(jié)合居民區(qū)進行分析。在此基礎(chǔ)上,利用緩沖區(qū)分析法對步行可達性進行研究從而核實網(wǎng)絡分析結(jié)論。論文研究取得的主要成果如下:(1)縱向?qū)Ρ冉Y(jié)果為:現(xiàn)狀步行合理時間城市公園可達性面積占比約5.76%,自行車合理時間可達范圍約17.36%,機動車合理時間可達范圍約30.71%,遠景可達性范圍有所增加,步行合理時間城市公園可達性面積占比達到16.02%左右,自行車約45.09%,機動車約為51.48%。(2)橫向?qū)Ρ冉Y(jié)果為:步行方式下,遠景比現(xiàn)狀可達性范圍增加,1級遠景比現(xiàn)狀可達性面積占比增加2.91%;2級遠景比現(xiàn)狀增加7.35%;3級遠景比現(xiàn)狀增加8.97%;4級遠景比現(xiàn)狀增加9.27%。自行車方式的城市公園可達性面積占比,1級遠景比現(xiàn)狀高15.09%;2級遠景比現(xiàn)狀增加12.64%;3級遠景比現(xiàn)狀降低5.81%;4級遠景比現(xiàn)狀降低4.07%。機動車方式的城市公園可達性面積占比,1級遠景比現(xiàn)狀增加26.04%;2級遠景比現(xiàn)狀降低5.28%;3級遠景比現(xiàn)狀降低4.64%。(3)結(jié)合居民區(qū)分析結(jié)論:步行合理可達范圍居民區(qū)面積覆蓋比從現(xiàn)狀的15.05%上升至遠景49.50%;自行車方式下從60.33%上升至92.30%;機動車方式下從75.78%上升至99.75%。(4)優(yōu)化及論證結(jié)論:對雨城區(qū)遠景條件下依舊缺失的區(qū)域,通過CAD尋找缺失區(qū)域質(zhì)心,合理調(diào)整質(zhì)心位置后,通過居民最常用的步行方式進行結(jié)果論證,城市公園步行合理可達范圍內(nèi)所覆蓋的居住區(qū)面積比例從遠景的49.50%左右提升到57.52%左右,可達性水平明顯提升,且空間布局更加合理,服務范圍更加體現(xiàn)公平。
[Abstract]:Urban park is an important part of urban public service system and an important place for urban residents to relax and relax. It has multiple functions such as ecology, society, economy and so on. The accessibility of urban parks has become an important index to measure the level of urban modernization. It is of great significance to study the reachability of urban parks to measure the service scope of urban parks, to provide references for the development of urban parks, and to improve the service function of urban parks. In this paper, the reachability of urban parks in Yucheng District of Yaan City is discussed by using Arcgis platform, and the reachability of urban parks in walking, cycling and motor vehicles in the two periods of current situation and prospect is studied by means of network analysis. The results of reachability under three traffic modes are compared vertically and horizontally and analyzed in combination with residential areas. On this basis, the buffer analysis method is used to study the reachability of steps so as to verify the network analysis conclusion. The main results obtained in this paper are as follows: (1) the longitudinal comparison results are as follows: the proportion of reachable area of urban park is about 5.76%, and the reasonable time of bicycle is about 17.36%, which is about 5.76% of the total reachability area of urban park at reasonable walking time. The reasonable time range of motor vehicles can reach about 30.71%, the range of long-range accessibility has increased, the proportion of reachability area of urban parks in reasonable walking time has reached about 16.02%, and the proportion of reachable areas of bicycles is about 45.09%. (2) the horizontal comparison results show that: in walking mode, the range of vistas is higher than that of present situation, and the proportion of reachability area of grade 1 is 2.91% higher than that of present situation; The level 2 prospect is 7.35% higher than the present situation, the third grade is 8.97% higher than the present situation, and the level 4 is 9.27% higher than the present situation. The reachability area of the city park with bicycle mode is 15.09% higher than the present situation, 15.09% higher than the present situation, 12.64% higher than the present situation, 5.81% lower than the present situation, 4.07% lower than the present situation. The reachability area of urban parks with motor vehicle mode accounted for 26.04% and 5.28% lower than the present situation, and the level 1 perspective was 26.04% higher than that of the present situation. (3) combined with residential area analysis, it is concluded that the coverage ratio of residential area can be reached reasonably by walking from 15.05% to 49.50% of the current situation; (3) combined with residential area analysis, the coverage ratio of residential area is increased from 15.05% to 49.50%; Bicycle mode from 60.33% to 92.30%; The motor vehicle mode increased from 75.78% to 99.75%. (4) Optimization and demonstration conclusion: after looking for the missing center of mass through CAD and adjusting the position of the centroid reasonably, the region still missing under the long-term condition of Yucheng District is optimized and demonstrated. According to the results demonstrated by the most commonly used walking methods of residents, the proportion of residential areas covered within the reasonable range of walking in the city park has been raised from 49.50% of the prospective to 57.52%, and the reachability level has obviously increased. And the space layout is more reasonable, the service scope is more embodiment fair.
【學位授予單位】：成都理工大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：P208;TU986

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