Journal of Geo-information Science >
Space Time Analysis on the Pick-up and Drop-off of Taxi Passengers Based on GPS Big Data
Received date: 2015-04-22
Request revised date: 2015-06-16
Online published: 2015-10-10
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As a complement for urban public transportation, taxi plays an increasingly important role in people’s life, which is also taken as one of the most important windows opening to the public. With the rapid development of economy, traffic condition is becoming more and more terrible, which causes the heavy traffic situation in many cities in China. Taxi is a type of transportation resourece that is dynamic and unbalanced in different road networks and at different time, which faces a lot of problems, such as the difficulty in finding a taxi for a passenger or finding a passenger for a taxi driver. This makes taxi transportation to be poorly efficient, and negatively affects the performance of government. It is helpful to learn about the dynamic space in the city, and the patterns of citizens’ working, living and travelling after studying the features and rules of taxis’ pick-up and drop-off distribution. Moreover, it is helpful to learn about the “hotspots” in the city, which represents the areas with huge volumes of taxis’ pick-up and drop-off activities. Based on taxis’s GPS trajecotries big data, this paper puts forward a new model called Line Density Model (LDM) to detect the space time distribution pattern of taxis’pick-up and drop-off activities, in which there are linear trends existing within the taxis’ pick-up and drop-off, and the “hotspots” exhibiting linear trends near the road network in the city. Finally, Wuhan city is taken as the testing area, and the experimental result shows that taxis’ pick-up and drop-off distribution is unbalanced in different areas and at different time, which helps to understand the dynamic and the pattern of the public’s working, living and travelling, and gives a reference to find the “hotspots” at different time in Wuhan city.
TANG Luliang , ZHENG Wenbing , WANG Zhiqiang , XU Hong , HONG Jun , DONG Kun . Space Time Analysis on the Pick-up and Drop-off of Taxi Passengers Based on GPS Big Data[J]. Journal of Geo-information Science, 2015 , 17(10) : 1179 -1186 . DOI: 10.3724/SP.J.1047.2015.01179
Fig. 1 Passengers pick-up and drop-off data based on GPS trajectory图1 基于GPS轨迹数据上下客的数据描述 |
Fig. 2 The Line Density Model (LDM) for line events图2 线密度探测算法示意图 |
Fig. 3 The pick-up and drop-off volume change in a week图3 上下客量在一周内的变化 |
Fig. 4 The pick-up and drop-off volume change in different time periods图4 上下客量在不同时段的变化 |
Fig. 5 Taxis’ pick-up and drop-off distribution in Wuhan city on March 11, 2009图5 2009年3月11日武汉市上下客分布示意图 |
Fig. 6 The pick-up and drop-off distribution in Jiedaokou area of Wuhan city图6 街道口区域上下客分布图 |
Fig. 7 The pick-up and drop-off distribution on weekends and weekdays in Jiedaokou area图7 武昌街道口区域工作日和非工作日上下客分布 |
Fig. 8 Taxis’ pick-up and drop-off distribution on Bayi road图8 八一路出租车上下客的空间分布 |
Fig. 9 Taxis’ drop-off on Bayi road in Wuhan during 19:00-21:00图9 八一路区域晚上19:00-20:00和20:00-21:00不同时段下客量分布 |
Fig. 10 Taxis’ pick-up distribution on Tiyuguan road in Wuhan in the Night图10 体育馆路不同晚间时段的上客量时空分布特征 |
The authors have declared that no competing interests exist.
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