latte
Exploiting Live Plus Archive Data for Intelligent Transportation Systems
Research Focus
Traffic congestion and the associated delay and economic costs it causes are a source of significant concern. In the United States over the past twenty years, vehicle miles traveled for passenger cars grew 44%, but miles of interstate highway increased less than 8%! In response, transportation departments are moving towards intelligent transportation management. Much of the data available for use in intelligent transportation management is in the form of data streams, such as inductive loop detector data, Automatic Vehicle Location (AVL) systems on buses, and live traffic signal data. This project investigates the use of Data Stream Management Systems (DSMS) for Intelligent Transportation Systems (ITS).The goals of this research are to extend the NiagaraST stream-processing system to accommodate queries that arise in intelligent transportation management and information systems (particularly those combining both live and archive data), develop improved evaluation techniques that will match transportation applications and data in speed and scale, and then thoroughly test and evaluate the results using the live and archival data sources available in the Portland State University ITS lab.
This project is a collaboration between faculty, staff and students in the Data and Information Management Laboratory of the Computer Science Department and the Intelligent Transportation Systems Laboratory of the Civil & Environmental Engineering Department in the Maseeh College of Engineering and Computer Science at Portland State University.
This project is funded by the National Science Foundation through grant IIS-0612311 "Exploiting Live plus Archive Data for Intelligent Transportation Systems." Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
People
Publications and Products
Demonstrations
- Tufte, K., Li, J., Maier, D., Papadimos, V., Bertini,
R.L., Rucker, J.
Travel Time Estimation using NiagaraST and latte,
Demonstration Paper in
Proceedings onf the 2007 ACM SIGMOD Conference on Management of Data 11-14 June 2007, Beijing, China Demonstration Poster
Journal Publications
- Tucker, P., Maier, D., Sheard, T., Stephens, P.
Using Punctuation Schemes to Characterize Strategizes
for Querying Data Streams
IEEE Transactions on Knowledge and Data Engineering Volume 19, 2007.