In last two decades, various monitoring systems have been designed and deployed in urban
environments, toward the realization of the so called smart cities. Such systems are based …

Mobile devices equipped with rich sensors, such as smartphones, watches, or vehicles,
have been pervasively used all around the world. Their high penetration and powerful …

This paper presents a graph processing based traffic estimation system, GPTE, which is able
to achieve high accuracy and high scalability to support city scale traffic estimation. GPTE …

Estimating travel time on the highway in real time is of great importance for transportation
services. Previous work has been mainly focusing on the city scale for a particular …

Offering the services of real-time tracking and arrival time prediction is a common welfare for
bus riders and transit agencies, especially in urban environments. On the down side, the …

The real-time vehicle sensing at urban scale is essential to various urban services. To date,
most existing approaches rely on static infrastructures (eg, traffic cameras) or mobile …

A telecommunication company (telco) is traditionally only perceived as the entity that
provides telecommunication services, such as telephony and data communication access to …

Offering the services of real-time tracking and arrival time prediction is a common welfare for
bus riders and transit agencies, especially in urban environments. On the down side, the …

Real-time urban traffic monitoring is crucial for effective smart city management. Despite the
increasing number of sensors collecting large-scale datasets in real time, challenges such …

GPS is taken as the most prevalent positioning system in practice. However, in urban areas,
as the GPS satellite signal could be blocked by buildings, the GPS positioning is not …