Analysis of Time-Space Float for a Building Construction Project

Abstract

The uniqueness of the project and high level of uncertainty associated with construction project makes its scheduling more challenging tasks resulting in the duration of activities overestimated. Hence Critical Chain Project Management Method (CCPM) acts as a handy tool to schedule the project with appropriate duration for each of the activities and providing various buffers to take into account various types of uncertainties that may delay or create overrun for the activities. In conventional scheduling, space or location of the activity is not taken into account except in the case of techniques like Linear Scheduling M ethod (LSM), Line of Balance (LOB) method. The study is carried out to determine the project duration of an ongoing project taking into account the actual duration of activities with constraints in resources and space available. The study compares the CCPM schedule taking into account the constraints in space with regular CCPM schedule and CPM schedule. The comparison shows that the duration of the project to complete with CCPM with space constraints, conventional CCPM, and CPM works out to 904 days, 854 days and 471 days respectively. On site verification of the project revealed that the project is expected to complete in 9 30 days, which is closer to CCPM with space constraints.