RPERT: Repetitive-Projects Evaluation and Review Technique

Abstract

Estimating expected completion probability of any repetitive construction project with a specified/certain duration including repetitive identical activities by using program evaluation and review technique is the most essential part in construction areas since the activities were had optimistic, most likely and pessimistic durations. This paper focuses on the calculation of expected completion probability of any repetitive construction project within a specified/certain duration (contract duration) by using Line Of Balance technique (LOB) in case of single or multiple number of crews integrated with Program Evaluation and Review Technique (PERT). Repetitive-Projects Evaluation and Review Technique (RPERT), which is a simplified software, will generate the expected project completion probability of a specified/certain duration (contract duration). RPERT software is designed by java programming code system to provide a number of new and unique capabilities, including: (1) Viewing the expected project completion probability according to a set of specified durations per each identical activity (optimistic time, most likely time, and pessimistic time) in the analyzed project; (2) Providing seamless integration with available project time calculations. In order to provide the aforementioned capabilities of RPERT, the system is implemented and developed in four main modules: (1) A user interface module; (2) A database module; (3) A running module; and (4) A processing module. At the end, an illustrative example will be presented to demonstrate and verify the applications of proposed software (RPERT), by using probabilistic calculations for repetitive construction projects.

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