The construction industry suffers from many practical problems and challenges; most being related to construction management. One of the most common recurring problems in construction projects is delay. Delay is a primary factor that can have an effect on project duration, scheduled delivery date, as well as the overhead cost of the project. This study investigated the problem of delays in construction projects. The research focused on the combination of Building Information Modeling (BIM) and Last Planner System (LPS) together to measure the execution time of construction projects. The aim of this study was to determine whether using BIM and LPS together affect construction process delay differently than using BIM or LPS alone. The methodology of this study relied on data collection through administration of survey questionnaires to key players and participants at construction companies. Interviews were conducted with construction experts from four construction companies that used BIM and LPS individually in their system as case studies to verify and validate the findings. The outcomes of this survey will be helpful to construction practitioners to reduce delay in construction operations and to shorten projects duration.

La presente investigación abunda en los conceptos relacionados a los retrasos que ocurren en una obra y a las causas del ineficiente seguimiento y control realizado al cronograma contractual de proyectos de construcción de la ciudad de Lima Metropolitana. Asimismo, se recaudó información de metodologías y herramientas a la vanguardia y se levantó la información de 3 proyectos de construcción de edificaciones multifamiliares. A partir de la información de estos proyectos, se identificaron los principales problemas de cada metodología que terminaron causando retrasos sobre los plazos contractuales de los mismos. Estos problemas pudieron ser agrupados en tres principalmente: la inadecuada planificación, la inadecuada programación y el vínculo débil o inexistente entre ambos. A partir de lo mencionado, se propuso una metodología con el principal objetivo de brindar una guía hacia los contratistas para realizar un seguimiento efectivo al plazo contractual de sus proyectos y prevenir todo retraso. / This investigation reviews the concepts related to the delays that occur in construction projects and the causes of the inefficient monitoring and control made to the contractual schedule in multi-family building projects developed in the city of Lima, Peru. Information was collected on methodologies and tools being used worldwide as well as from 3 multi-family constriction building projects. From the information of these projects, the main problems of each methodology that ended up causing delays over their contractual schedule were identified. Problems identified were grouped into three: inadequate planning, inadequate programming and a weak or non-existent link between the two. Based on this analysis, a methodology was proposed with the main purpose of providing a guide to contractors to effectively monitor the contractual schedule of their projects and prevent any delay. / Tesis