Value of time was estimated for commercial vehicle operators in Minnesota to quantify the effects of
spring load restrictions. A sample was constructed from several trucking industry sources to conduct
a survey. Interviews were conducted using an adaptive stated preference (ASP) survey to derive an
estimate to the nearest dollar.
A tobit model was fi t to the data from the interviews to derive the estimate for value of time,
$49.42 per hour. Variation in the distribution of values is explained in part by fleet operation: whether
the firm operates as a for-hire carrier or a private carrier