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Project at a Glance

Project Status: complete

Title: Development of software for spatially and temporally resolving motor vehicle activity data.

Principal Investigator / Author(s): Chou, Yue-Hong

Contractor: UC Riverside

Contract Number: 98-322

Research Program Area: Emissions Monitoring & Control

Topic Areas: Mobile Sources & Fuels


The objective of this project is to develop a customized Geographic Information System (GIS) software application to spatially and temporally allocate Global Positioning System (GPS) instrumented vehicle activity data and provide summary statistics at a range of spatial and temporal resolutions. Major research activities were made in three areas: (1) correct interpretation of GPS-instrumented vehicle data in terms of street networks and accurate translation of vehicle location data into meaningful routing information necessary for construction of trip patterns, (2) effective organization of both digital street maps and vehicle data in a comprehensive database required for compilation of critical statistics for analysis of mobile source emissions at desirable geographic configurations, and (3) incorporation of mapping and database management capabilities into a user-friendly, automated procedure suitable for analysis of the spatially and temporally resolved motor vehicle activity based on the huge volumes of GPS-instrumented vehicle data. A analytical application is built on ESRI's Arc View GIS for ARB researchers to carry out a wide range of motor vehicle travel data analyses.


For questions regarding this research project, including available data and progress status, contact: Heather Choi at (916) 322-3893

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