This is one of a series of reports on the 1990 Nationwide Personal Transportation Survey (NPTS). The NPTS includes information about the amount and nature of personal travel in the United States, as related to the demographics of persons and households. This report focuses on analyses of four urban size groups: urbanized areas under 1 million population, urbanized areas with 1 million or more population without rail, urbanized areas with 1 million or more population with rail, and non-urbanized areas. Topics include person and vehicle trip rates, vehicle occupancy rates, trip length in time and distance, mode choice, and commuting trip patterns. Comparisons of the 1983 and 1990 NPTS datasets are included.