广州市地铁对常规公交出行成本影响及其空间公平性研究
陈慧灵(1992-),女,湖南邵阳人,博士研究生,主要从事交通地理与旅游地理研究。E-mail: chenhuiling0325@126.com |
收稿日期: 2018-07-11
要求修回日期: 2018-09-28
网络出版日期: 2019-10-10
基金资助
国家自然科学基金项目资助(41671160)
版权
Impact of Rail Transit on the Travel Cost of Bus Transit and the Spatial Equity: A Case Study of Guangzhou
Received date: 2018-07-11
Request revised date: 2018-09-28
Online published: 2019-10-10
Supported by
National Natural Science Foundation of China(41671160)
Copyright
从时间与费用两个角度研究广州市地铁建设对公共交通可达性的影响及其影响的空间公平性。结果表明:① 加权时间与费用可达性均形成“核心-外围”的空间格局。通地铁后,南部郊区加权时间可达性变化率较大,花都区变化率最低;加权费用可达性高变率地区集中在地铁沿线及边缘地区。② 不乘地铁情境下,CBD等时圈呈同心圆状,80%的居民在50 min以及2元钱花费内能到达最近的商业综合体。乘地铁情境下等时圈沿着地铁网络延伸与扩散,80%的居民在30 min以及5元钱以内能到达最近的商业综合体。③ 无论是否乘坐地铁,出行时间的不公平程度都高于出行费用的不公平程度。番禺区的社区从地铁网络中时间可达性获益最多,最不公平的是白云区的社区,其绝对和相对变化较低;中心城区由于常规公交网络发达,地铁缩短的绝对出行时间较少,而变化率高。地铁对城市内中远距离出行性价比的影响最明显。
陈慧灵 , 王伯礼 , 曹小曙 , 石恩名 , 刘永伟 . 广州市地铁对常规公交出行成本影响及其空间公平性研究[J]. 地理科学, 2019 , 39(8) : 1265 -1275 . DOI: 10.13249/j.cnki.sgs.2019.08.008
Rail transit provides the possibility for residents from car travel to public transport travel. This paper studies the changes and characteristics of travel costs which subway construction brought up and the spatial equity of its influence from two aspects of travel time and travel expenses. The results show that: 1) The spatial patterns of weighted average time and fare indicators are core-peripheral. After the operation of subways, the relative change value of the weighted time in the southern suburbs is high, and the change rate of Huadu district is the lowest. The areas of high change rate of weighted fare accessibility are concentrated in the southern fringe areas and along the subway lines. 2) In the bus transit scenario, the isotime curves of CBD are concentric circles and eighty percent of residents could arrive in the nearest commercial complex within 80 minutes and RMB 2. In the rail transit scenario, the isotime curves are extended and diffused along the subway lines and eighty percent of residents could arrive in the nearest commercial complex within 30 minutes and RMB 5. 3) Whether or not to take the subway, the inequity degree of travel time between communities is higher than of travel fare. The absolute and relative improvement of travel time of Panyu district after with subway is great. Due to the bus transit network is well in central city, the absolute change of travel time which subway brought is slight, but its relative change is high. The rail transit has a significant on the cost-effective of medium-distance and long-distance travel. This research could provide the theoretical support for the development of the multi-modal transit system.
Key words: rail transit; conventional bus; travel time; travel fare; Guangzhou
表1 广州市地铁通行前后时间与费用可达性变异系数Table 1 Coefficient of variation of time-based accessibility and fare-based accessibility before and after the operation of rail transit in Guangzhou |
无地铁 | 有地铁 | 变化率 | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
标准差 | 平均值 | 变异系数 | 标准差 | 平均值 | 变异系数 | 平均值 | 变异系数 | |||
加权时间可达性 | 32.43 | 89.66 | 0.36 | 22.05 | 57.69 | 0.38 | -35.65% | 5.64% | ||
加权费用可达性 | 1.01 | 4.25 | 0.24 | 2.17 | 8.48 | 0.26 | 99.42% | 7.36% | ||
社区时间可达性 | 35.01 | 24.49 | 0.70 | 23.46 | 21.08 | 0.90 | -13.94% | 28.41% | ||
社区费用可达性 | 2.54 | 0.98 | 0.39 | 3.62 | 2.16 | 0.60 | 119.55% | 54.26% |
表2 广州市地铁建设后出行时间绝对变化Z值在各区人口的分布Table 2 The absolute improvements in time-based accessibility by population according to districts in rail transit scenario in Guangzhou |
Z值范围 | <-1.5 | -1.5~-0.5 | -0.5~0 | 0~0.5 | 0.5~1.5 | Z>1.5 | |
---|---|---|---|---|---|---|---|
内圈层 | 越秀区 | 3.47% | 78.41% | 15.46% | 2.10% | 0.56% | 0.00% |
海珠区 | 0.18% | 47.68% | 46.27% | 5.75% | 0.12% | 0.00% | |
荔湾区 | 0.47% | 12.46% | 44.98% | 32.40% | 9.68% | 0.00% | |
天河区 | 0.92% | 83.33% | 11.90% | 3.43% | 0.42% | 0.00% | |
过渡圈层 | 白云区 | 1.97% | 56.54% | 20.38% | 13.67% | 5.29% | 2.15% |
黄埔区 | 0.56% | 16.67% | 35.61% | 27.54% | 19.62% | 0.00% | |
番禺区 | 0.00% | 9.37% | 10.51% | 15.62% | 37.84% | 26.65% | |
外圈层 | 花都区 | 0.26% | 4.93% | 3.03% | 8.50% | 43.14% | 40.14% |
南沙区 | 0.00% | 0.53% | 0.67% | 21.96% | 64.28% | 12.55% | |
总和 | 1.02% | 42.16% | 22.31% | 12.67% | 14.07% | 7.77% |
表3 广州地铁建设后出行时间相对变化Z值在各区人口的分布Table 3 The relative improvements in time-based accessibility by population according to districts in rail transit scenario in Guangzhou |
Z值范围 | <-1.5 | -1.5~-0.5 | -0.5~0 | 0~0.5 | 0.5~1.5 | >1.5 | |
---|---|---|---|---|---|---|---|
内圈层 | 越秀区 | 3.87% | 11.10% | 27.38% | 33.31% | 24.34% | 0.00% |
海珠区 | 1.99% | 11.73% | 12.21% | 26.96% | 45.78% | 1.33% | |
荔湾区 | 0.47% | 5.25% | 11.51% | 28.00% | 54.77% | 0.00% | |
天河区 | 5.46% | 28.91% | 14.54% | 21.83% | 29.25% | 0.00% | |
过渡圈层 | 白云区 | 27.72% | 31.16% | 8.24% | 13.63% | 15.52% | 3.73% |
黄埔区 | 10.37% | 19.40% | 28.01% | 3.22% | 39.00% | 0.00% | |
番禺区 | 1.14% | 11.02% | 14.01% | 23.31% | 37.50% | 13.02% | |
外圈层 | 花都区 | 5.10% | 14.34% | 13.59% | 31.59% | 30.26% | 5.11% |
南沙区 | 2.14% | 29.51% | 27.90% | 25.00% | 13.70% | 1.75% | |
总和 | 8.64% | 18.65% | 15.22% | 22.14% | 32.01% | 3.33% |
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