Smart cities have been recognized as a promising research focus around the world. To
realize smart cities, computation and utilization of big data are key factors. More specifically …

What is the purpose of a trip? What are the unique human mobility patterns and spatial
contexts in or near the pickup points and delivery points of trajectories for a specific trip …

With the rapid development of cell phone–locating technologies, traffic data–extracting
methods through cell phones start to play an important role in urban transportation planning …

In this work, we present methods to estimate average daily origin–destination trips from
triangulated mobile phone records of millions of anonymized users. These records are first …

In transportation studies, one fundamental problem is to analyze the departures and arrivals
at locations in order to predict the travel demands for urban planning and traffic …

Expanding our knowledge about human mobility is essential for building efficient wireless
protocols and mobile applications. Previous human mobility studies have typically been built …

While exploring human mobility can benefit many applications such as smart transportation,
city planning, and urban economics, there are two key questions that need to be …

This study presents a methodology for estimating passenger's spatio-temporal trajectory with
personalization and timeliness by using incomplete Wi-Fi probe data in urban rail transit …

Smartphone-based travel surveys have attracted much attention recently, for their potential
to improve data quality and response rate. One of the first such survey systems, Future …

When the global positioning system became available for civil uses in the early 1990s, there
was an enthusiasm and anticipation that information stored in GPS data streams would …