摘要: |
The practice of travel-demand forecasting has placed substantial emphasis on forecasting travel during a 鈥渢ypical mid-week鈥?(Tuesday 鈥?Thursday) day. While this is adequate from the stand point of understanding congestion due to commute, such an approach does not paint a complete picture of the overall travel patterns of people. The intent of this study is to examine the variations in activity-travel patterns across the week days with emphasis on differences between the mid-week days (Tuesday, Wednesday, and Thursday) and the Shoulder week days (Monday and Friday). The focus is on analyzing the maintenance- and discretionary- activity decisions (participation, duration and time of day) as such episodes are not undertaken on a daily basis and are likely to be undertaken on non-working days. Data from two national-level surveys from multiple years are used. While the differences among the weekdays are not as pronounced as differences between weekdays and weekend days, the study demonstrates key differences in participation, duration, and time of day choices across the weekdays. The differences observed from trip-based and time-use surveys are also discussed. |