Commutes of similar length are experienced very differently, and duration explains less of the variation than expected. What separates them is predictability and how much control the traveller has.
Variability costs more than length
A journey that reliably takes forty minutes can be planned around. A journey taking anywhere between twenty-five and seventy cannot.
Unpredictable travel forces the traveller to budget for the worst case, so the effective cost is the longest plausible duration on every occasion.
This is why service reliability affects satisfaction more strongly than average journey time, and why timetable changes that reduce variance are valued highly.
Control changes the experience of the same delay
A delay a person can respond to, by changing route or adjusting plans, is experienced differently from one where they can only wait.
Passengers stopped between stations have no information and no options, which is the least tolerable configuration and the one most often complained about.
Operators addressing this concentrate on information rather than on speed, because knowing the length of a delay restores part of the lost control.
The interval is neither work nor rest
Commuting occupies time that cannot be used fully for either purpose, since the traveller must remain alert to the journey itself.
Modes differ here. A seat on a train permits reading or work in a way that driving in traffic does not, which is why equivalent times are not equivalent experiences.
Standing in crowded conditions removes the possibility entirely and leaves an interval that produces nothing.
The transition function has been lost
A commute historically served as a boundary between home and work, providing a period in which one role was set down before the other was taken up.
People who stopped commuting frequently report missing that boundary, which is why substitutes such as a walk before and after the working day are commonly adopted.
The boundary is a function of the interval rather than of the travel, which is why a short walk can replace a long journey in that respect.
Housing decisions lock the pattern in
Commutes are chosen once, as part of a decision about where to live, and then repeated daily for years.
The decision is usually made on price and property, with the journey assessed on a good day rather than on a typical one.
Because moving is expensive and disruptive, an underestimated commute persists long after the traveller has recognised the error, which is what turns a poor choice into a durable condition.