After careful assessment of travel time reliability terms and the results obtained in the various human factors studies and experiments conducted throughout the course of the Project L14, the research team established three key hypotheses related to the use and value of travel time reliability in
The objectives of the first utility function laboratory study were (1) to assess the value participants placed on traveler information, and specifically reliability information, within the context of a simulated time-constrained trip, and (2) to determine whether having reliability information he
The experiment was conducted in five cities—Dallas, Denver, Hartford, Miami, and San Jose—over a period of 4 months and acquired information from 80 participants. Specific questions regarding levels of trip stress and on-time arrival confidence had to be completed at each waypoint and at the begi
SHRP2-L14's research team decided to use a multiple-choice survey to address comprehension and preference questions regarding reliability terms and associated trip information. The survey was conducted on laptops using the SuperLab software to present questions and instructions and to collect par
“D” Drivers is a term that has been coined for drivers who are drunk, drugged, drowsy, distracted, or just plain dangerous. These types of drivers are a hazard on the roadways and are one of the worst dangers to responders working an incident along a roadway. This video is meant to be delivered t
