This paper presents an effort to validate the traffic incident duration estimation model of WAIMSS (wide area incident management support system). Duration estimation model of WAIMSS predicts the incident duration based on an estimation tree which was calibrated using incident data collected in...

Multilevel Structural Equation Modeling (MSEM) is used to estimate latent variable models in the presence of multilevel data. A key feature of MSEM is its ability to quantify the extent to which a hypothesized model fits the observed data. Several test statistics and so-called fit indices can be...

Over the last decade, managed care has grown rapidly. While many studies have examined the relationship between managed care market growth and health care costs, and managed care market growth and health care utilization in the literature, very few studies have examined the relationship between...