I'm Zengxiang Lei,

a transporation engineering student.

about me

Welcome! I am a Phd student in Purdue majoring in Transportation. I got my bachelor and master degree in Tongji University, Shanghai, China. My research interests are urban data anlytics and its implications. Again, welcome to my website and feel free to contact me if you are interested about my work.

current subject

Learning javascript for visualization large scale trajectories

found on

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Work With Mobile Phone Data

- - posted in study

MOBILE PHONE DATA allows researchers to study individuals’ movement for a long period. Therefore, in recent years, it becomes killer mace in travel behavior analysis and human mobility research. However, Indicating a dataset as mobile phone data is quite ambiguous. In general, when we mention mobile phone data, it could be two different things.

Analyze ALPR Data Using Spark

- - posted in study

ALPR (Automated License Plate Reader) data are often used in law enforcement, but it can also be applied to analyze the vehicles users’ travel behaviors. Here we use spark to extract trip records from ALPR data.