Transportation Secure Data Center: Real-World Data for Planning, Modeling, and Analysis.

摘要

Maintained by the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) in partnership with the U.S. Department of Transportation (DOT), the TSDC houses data from travel surveys and studies conducted using GPS devices. It features millions of data points—second-by-second GPS readings, vehicle characteristics (if applicable), and demographics—for all modes of travel. NREL screens the initial data for quality control, translates each data set into a consistent format, and interprets the data for spatial analysis. NREL’s processing routines add information on vehicle fuel economy and road grades and join data points to the road network