Journal of Transport Geography 82 (2020) 102568
Contents lists available at ScienceDirect
Journal of Transport Geography
journal homepage: www.elsevier.com/locate/jtrangeo
Analysis on spatiotemporal urban mobility based on online car-hailing data
Bin Zhanga,b, Shuyan Chena,b,⁎, Yongfeng Maa,b, Tiezhu Lia,b, Kun Tanga,b
a School of Transportation, Southeast University, Sipailou 2, Nanjing 210096, China
b Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies, Southeast University Road #2, Nanjing 211189, PR China
A R T I C L E I N F O
Keywords:
Online car-hailing Activity intensity Points of interest
Spatiotemporal distribution Ordered logistic regression
A B S T R A C T
As an emerging travel mode, online car-hailing plays an increasingly important role in peoples daily travel. Car- hailing data provide a new source to study human mobility in urban areas. This study focuses on identifying the distribution of regions with high travel intensity and the correlation between travel intensity and points of interest (POIs), based on the online car-hailing data collected in Chengdu, China. Firstly, the whole city area was divided into 16,100 uniform blocks and the number of pick-up and drop-off activities in each block was counted. Then, all POIs were categorized into 13 types and the number of different types of POIs in each block was counted. On this basis, the grade of travel intensity and POIs density in each block was identified according to the number of travel activities and POIs respectively. Finally, the correlation between the travel intensity and the POIs density was explored with ordered logistic regression. Experiment results showed that regions with high travel intensity are mainly distributed within the Second Ring Road, while those in the suburbs of city are usually the large transportation hubs, such as airports and train stations. Different types of POIs have different impacts on the online car-hailing travel intensity, and the density of traffic facilities has the greatest impact, including pick-up and drop-off, followed by density of scenic spot. The densities of service facilities and sports facility have an impact on the intensity of pick-up, while the impact on the intensity of drop-off is not significant. The density of company has no significant impact on the intensity of neither pick-up nor drop-off. These findings can contribute to a better understanding of online car-hailing travel activities and their relation with the urban space, and can provide useful information for urban planning and location-based services.
Introduction
-
- Background
With the diversification of travel demand and travel mode, online car-hailing plays an increasingly important role in peoples daily travel activities. The Online car-hailing platform generates a large amount of accurate location data, including origins and destinations. Unlike tra- ditional survey data, the data gathered from online car-hailing reflects the wide range of mobile space and actual origin and destination of peoples travel. Thus car-hailing provides a new source of information that can be used to study peoples travel behavior and urban mobility. Increasingly large amounts of accurate positioning data provide a good opportunity to understand the peoples travel in urban context. Researchers have used such data to achieve fruitful research results in many areas such as urban planning, travel demand forecasting and functional region discovering. The related work is divided into three
parts as follows.
-
- Related work
A lot of researches have been conducted on travel activity and urban space using the location data. Some examined such location data for analyzing the urban spatial attribute, such as functional region and spatial structure, and such analyses are conducive to understanding peoples travel behavior from the perspective of urban space and ex- ploring the factors behind the behavior. Zheng et al. (2011) detected flawed urban planning using GPS trajectories of taxicabs traveling in urban areas. Roth et al. (2011) utilized the large scale, real-time card database of individuals movements in the London subway to reveal the structure and organization of the city. Yuan et al. (2012) proposed a new framework for discovering different functional regions in a city by using both human mobility and POIs located in a region. Liu et al. (2015) built spatially-embedded networks to model intra-city spatial interactions, introduced network science methods into the issue based on massive taxi trip data of Shanghai, and revealed a two-level hier- archical polycentric city structure of Shanghai. Mao et al. (2016)
⁎ Corresponding author at: School of Transportation, Southeast University, Sipailou 2, Nanjing 210096, PR China.
E-mail addresses: binzhang@seu.edu.cn (B. Zhang), 基于网约车使用数据的城市流动性分析
-
随着出行需求的出行方式的多样化,网约车在人们的日常出行活动中扮演着越来越重要的角色。网约车平台所提供的准确位置数据,包括出发地和目的地。从网上收集的数据来看,网约车反映广泛的的空间移动和目的地人们的出行。因此,打车提供了新的信息来源,可用于研究人们的出行行为和城市出行。越来越多的大量精确的定位数据提供了一个很好的机会来了解人们的出行城市环境。研究人员已使用这些数据在许多领域取得了丰硕的研究成果,例如城市规划,旅行需求预测以及功能区域发现,该相关工作被划分成3部分。
根据当天订单量的变化,将一天分为4个阶段:0:00-7:00,7:00-12:00,12:00-17:00和17:00-24:00.来进行单独的数据统计分析。
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