Levinson, David MHarder, KathleenBloomfield, JohnCarlson, Kathy2016-05-022016-05-022006Levinson, David, Kathleen Harder, John Bloomfield, Kathy Carlson (2006) Waiting Tolerance: Ramp Delay vs. Freeway Congestion. Transportation Research part F 9(1) 1-13.https://hdl.handle.net/11299/179943Waiting tolerance at ramp meters and travel time on the freeway were measured using a computer administered stated preference (CASP) survey and a virtual experience stated preference (VESP) method employing a driving simulator.The selections varied in the number of minutes waiting at a ramp meter with vehicle speed once on the freeway. The subjects ranked the selections in order of preference. The results were statistically analyzed using a binary logit model controlling for demographics, socioeconomic characteristics, daily travel time, and personality scores.The results by the CASP method displayed a preference for freeway congestion to ramp delay, but opposite results were obtained by the VESP method. A number of reasons are posited to explain the difference, but the results indicate that method of stated preference data collection can significantly affect conclusions drawn.enRamp meters; Personality; Stated preference; Driving simulator; Travel timeArticlehttp://dx.doi.org/doi:10.1016/j.trf.2005.08.003