Watch for
Unfamiliar journeys feeling disproportionately long.
Decision & ChoiceBias #98
Well-Traveled Road Effect
Familiar routes feel faster than unfamiliar ones.
The tendency to estimate the duration of a trip along an unfamiliar route as taking longer than the same duration trip along a familiar route.
Why it matters: Explains why new commutes feel painful at first and why route planners should not be based on subjective estimates.
Try this
Check actual travel time data rather than relying on your perception.
Real-world example
A 30-minute drive to a new location feels much longer than a 30-minute drive on your daily commute.
Key researchers
Daniel Kahneman
First described in 1990
Psychological mechanism
Attentional demands and memory encoding. Familiar routes require less attention so time seems to pass faster. Unfamiliar routes demand more attention making time feel slower and creating richer memories that make the journey seem longer.
Seminal research
Discussed in Kahneman and Tversky research on time estimation and the planning fallacy.
Related Biases
Debrief
Biases are not character flaws. They are recurring patterns in how minds compress uncertainty, save energy, and narrate reality. Once you recognise the pattern, you can slow the decision down, test the assumption, and make space for a better explanation.
Sources
Original ResearchKahneman (1990) — Time estimation research
EncyclopediaWikipedia overview