A foundation for representing and querying moving objects
ACM Transactions on Database Systems (TODS)
Techniques for Efficient Road-Network-Based Tracking of Moving Objects
IEEE Transactions on Knowledge and Data Engineering
On map-matching vehicle tracking data
VLDB '05 Proceedings of the 31st international conference on Very large data bases
Addressing the Need for Map-Matching Speed: Localizing Globalb Curve-Matching Algorithms
SSDBM '06 Proceedings of the 18th International Conference on Scientific and Statistical Database Management
CarTel: a distributed mobile sensor computing system
Proceedings of the 4th international conference on Embedded networked sensor systems
Travel time estimation using NiagaraST and latte
Proceedings of the 2007 ACM SIGMOD international conference on Management of data
Surface street traffic estimation
Proceedings of the 5th international conference on Mobile systems, applications and services
Monitoring continuous queries over streaming locations
Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems
Exploring Spatio-Temporal Features for Traffic Estimation on Road Networks
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Map-matching for low-sampling-rate GPS trajectories
Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
IBM infosphere streams for scalable, real-time, intelligent transportation services
Proceedings of the 2010 ACM SIGMOD International Conference on Management of data
Scalable, Real-Time Map-Matching Using IBM's System S
MDM '10 Proceedings of the 2010 Eleventh International Conference on Mobile Data Management
On map matching of wireless positioning data: a selective look-ahead approach
Proceedings of the 18th SIGSPATIAL International Conference on Advances in Geographic Information Systems
A data stream-based evaluation framework for traffic information systems
Proceedings of the ACM SIGSPATIAL International Workshop on GeoStreaming
Multi-granular Time-Based Sliding Windows over Data Streams
TIME '10 Proceedings of the 2010 17th International Symposium on Temporal Representation and Reasoning
Geospatial stream query processing using Microsoft SQL Server StreamInsight
Proceedings of the VLDB Endowment
Nonmaterialized motion information in transport networks
ICDT'05 Proceedings of the 10th international conference on Database Theory
Anomaly management using complex event processing: extending data base technology paper
Proceedings of the 16th International Conference on Extending Database Technology
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Tracking mobility of humans, animals or merchandise has recently given rise to a wide variety of location-based services and monitoring applications. In this paper, we particularly focus on real-time traffic surveillance over densely congested road networks in large metropolitan areas. In such a setting, streaming positional updates are being frequently relayed into a central server from numerous moving vehicles (buses, taxis, passenger cars etc.). Our analysis concerns two important aspects. First, we outline characteristics of a robust processing engine that is capable to efficiently manage such massive, transient, and perhaps noisy geospatial data. Our objective is to provide online aggregates and reliable estimates regarding the current traffic situation at multiple levels of resolution. At a second step, we design a framework for effective multi-modal dissemination of derived information to the end users, in the form of interactive maps for intuitive visualization as well as instant notifications via message feeds. As a proof of concept, we also report on our ongoing development of EPOPS; in its current version, this functional prototype of the proposed scheme is able to deliver cross-platform geographic, textual, and even multimedia content through web and smartphone interfaces.