- The document discusses how stated choice design variables may influence valuation estimates from stated choice experiments used to value travel time. - It analyzes the role of boundary value of travel time, time differences, and cost differences used in stated choice experiments by splitting data based on these variables and estimating models. - The results show that model estimates, such as the estimated value of travel time, do vary when the data is split based on the boundary value of travel time, time differences, and cost differences used in the experiment. This suggests these design variables may influence stated choice results.