Transit shelters and other amenities affect perceived wait times

Photo: Metro Transit

Photo: Metro Transit

Time seems to fly when you’re having fun, but not when you’re waiting for a bus at an unsheltered stop. In a new study, U of M researchers found that several factors can have a measurable impact on riders’ perceptions of wait times. A shelter can make the wait seem shorter, for example, whereas for women, unsafe conditions can make the wait seem longer.

The study, sponsored by the Transitway Impacts Research Program (TIRP), grew out of the interest of several TIRP partners to learn how riders’ perceptions of wait time is affected by transit shelters, amenities such as posted schedules, and characteristics of surrounding areas. “Waiting time is a convenient way to measure how burdened a waiter feels,” explains Andrew Guthrie, research fellow with the Humphrey School of Public Affairs.

The research team gathered data at 36 stops and stations throughout the Minneapolis–St. Paul metropolitan area, ranging from unprotected curbside stops to light-rail stations and transit centers, Guthrie says.

Data collection teams—consisting of one recruiter and one videographer—surveyed more than 880 riders. The recruiter asked just-boarded passengers to estimate the time they had spent waiting at that stop; the videographer provided an objective measure of the actual waiting time.

The overall results: “Perceived and actual wait times are clearly related, but the relationship is variable,” Guthrie says. “The waiting environment can change perceptions.”

Nearly 85 percent of those surveyed waited 10 minutes or less. Even with waits under a minute, however, people tended to perceive at least a minute or two, and they tended to estimate in round numbers (5, 10, 15 minutes). “This creates an initial ‘penalty’ of overestimates,” he says.

Researchers also found several variables to have statistically significant impacts. The presence of a shelter—even a simple one—made waits seem shorter, especially for waits less than 10 minutes. The presence of a NexTrip real-time information sign also shortened perceived waits.

For shorter waits, posted schedules caused people to overestimate wait time, but after about 10 minutes, people began to underestimate it. “It’s possible that for short waits, people compare the clock and the schedule and get impatient, but for longer waits, they are reassured to know the bus or train is coming,” Guthrie says.

Gender alone was not significant, but there was a stark difference for women in less safe environments. “Most sites in the study were rated as safe, but at those that were not, there’s potential to improve the experience for riders and potential riders,” he says.

The model developed in the project includes many other variables such as household income, trip purpose, and the presence of benches and route maps. “Users of the model will be able to choose criteria and predict the impacts of hypothetical feature mixes,” Guthrie says.

A final report is planned for publication in March. For more information, read the full article in the January issue of Catalyst.

Posted in Public transit, Transportation research

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