A Method of Data Cleaning Based on IC Card and GPS Data in Chengdu

Author(s):  
Yi Qian ◽  
Ling Xu ◽  
Pengyao Ye
Keyword(s):  
Gps Data ◽  
2012 ◽  
Vol 5 ◽  
pp. 50-55
Author(s):  
Li Bing Chi ◽  
Jian Wang

Due to development in computer and information technology, data access and collection have becoming more and more convenient. In many cities’ transit system, transit vehicle GPS data and passenger IC card data could be provided. This paper focuses on the method that uses the passenger IC card data (only record once per trip) and transit vehicle GPS data to generate the transit OD matrix. After analyzing the characteristic of transit trips, the author gives the definition of continuity for a transit trip. Based on this definition, this paper then presents a search method to generate the transit OD matrix. The validity of this method has been tested in the modeling process for Zhengzhou city’s comprehensive transportation system. At the end, it is hoped that this research may give a useful lesson for other cities’ transportation modeling practice.


2019 ◽  
Vol 42 (8) ◽  
pp. 825-847
Author(s):  
Feng Chen ◽  
Jinlei Zhang ◽  
Zijia Wang ◽  
Shunwei Shi ◽  
Haixu Liu
Keyword(s):  
Gps Data ◽  
Ic Card ◽  

2021 ◽  
Author(s):  
Lingfei Zeng ◽  
Wei Huang ◽  
Jingpeng Wen ◽  
Haolong Zhan ◽  
Yichao Lin

Author(s):  
R. Prabha ◽  
Mohan G Kabadi

Reliability in the utilization of the Global Positioning System (GPS) data demands a higher degree of accuracy with respect to time and positional information required by the user. However, various extrinsic and intrinsic parameters disrupt the data transmission phenomenon from GPS satellite to GPS receiver which always questions the trustworthiness of such data. Therefore, this manuscript offers a comprehensive insight into the data preprocessing methodologies evolved and adopted by present-day researchers. The discussion is carried out with respect to standard methods of data cleaning as well as diversified existing research-based approaches. The review finds that irrespective of a good number of work carried out to address the problem of data cleaning, there are critical loopholes in almost all the existing studies. The paper extracts open end research problems as well as it also offers an evidential insight using use-cases where it is found that still there is a critical need to investigate data cleaning methods.


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