It is an essential work to prepare the Level-of-service data in calibrating disaggregate behavioral models. But because of fewer studies, it is not well-known how much the accurate data should be prepared of travel demand analysis. This paper addressed this issue by comparing two types of models: one is estimated with observed data and another is with mesh-data. After a new methodology is developed in calculation of manu cased for each mesh size, differences in the coefficients are statistically well understood.
