Abstract
This report describes how a previously proposed logit path flow estimator (LPFE) has been further developed in order to improve the reliability and efficiency of origin-destination (O-D) trip table estimates. The report describes how both steady-state and time-dependent LPFE are implemented in an object-oriented programming (OOP) framework. The performance of the LPFE is tested using synthetic data and the accuracy and reliability of its O-D trip table estimates are quantified. The report also describes the development of Visual PFE and Visual PFE-TD, which are the graphic user interfaces (GUI) for both static and time-dependent LPFE.