On weekdays, when most trips are compulsory (e.g., commuting and business), people in compact neighborhoods cannot easily change trip frequency.
By contrast, on weekends, when people mostly travel for nonmandatory/discretionary purposes (e.g., social and leisure) [6], it is relatively easy to change trip frequency [16].
Particularly on weekdays, land use in Seoul does not change trip frequencies (the path of "TB < − LU" was removed from the weekday trip frequency model because it was insignificant).
During the trip, only en-route users can change their trip modes (P&R, driving only).
Little did I know that would change my trip of the year into a trip to hell.
The nationalities change every trip, but, a staff member told me, usually they're seasoned travelers.
Talking to strangers along your travels can change your trip into an adventure.
Yet, further off the grid, they have an altogether more menacing encounter, with armed locals, which definitively changes the trip, their relationship, and their lives.
You can change your trip to leave two weeks later and make your cousin's wedding.
For these people, unless things change, a trip to Keran and a walk along the riverbank will be the nearest they ever get to a family reunion.
