This research examined travelers’ willingness to pay for travel time savings (TTS) and thevariability of the dynamic toll prices on the I-394 MnPASS Express Lanes in Minnesota and theI-15 Express Lanes in San Diego. The findings from both facilities indicate many travelers arewilling to pay a toll for small TTS. This resulted in revealed preference values of time for I-394paying customers averaging $73/hr in the morning and $116/hr in the afternoon. Travelers on theI-15 Express Lanes received slightly higher TTS than on I-394 and typically had a lowerwillingness to pay. Their revealed preference values of time averaged $49/hr in the morning and$54/hr in the afternoon. Based on how large these values are it is likely travelers are paying formore than just TTS, possibly travel time reliability, meaning these lanes likely have added valueto travelers beyond time savings.It was found that there was considerable variation in toll rates during the morning and afternoonpeak hours with tolls ranging from $0.50 to $8.00. Conversely, off-peak times showed little tono variation. It was found that these trends were similar when looking at different days of theweek and even from year to year. Additionally, it should be noted that these trends werecommon across both I-394 and I-15 Express Lanes, although more variation was found on I-15.
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