AGC Lean Unit 1
Terms in this set (30)
The associated general contractors of America
The leading national construction trade association representing all facets of commercial construction for both public and private entities including building, heavy, highway, and municipal projects. AGC and its nationwide network of chapters are recognized as leaders in defining and advocating for the construction industry for nearly a century.
Mechanisms to mitigate the effects of variation in production systems. It is important to use properly sized buffers in critical areas of the production process.
The maximum amount of work a production unit can perform with the provided tools and methods in a given situation.
Buffers created by inducing under loading in a construction crew.
Common cause variation
Deviations from the baseline production process caused due to variation sources internal to the process.
The time it takes for the material or the product cycle through the production system: from the time it enters the production system to the time it exits the production system (the time it is work in progress).
The information or systems required for the construction crew to start the activity. Examples of directives include submittals, shop drawings, pending RFI's etc.
Once the activity is underway, any failure that stops a crew from completing it by the scheduled time.
Buffers created by maintaining a stock of critical material. Lack of these materials poses a threat to reliable workflow on site.
Just in time (JIT)
A system where the material and resources are delivered to the construction site immediately before they are to be used or installed. The deliveries are kept on hold till the last responsible moment. This helps reduce inventory and multiple handling costs in the project. Just In Time is a direct translation from Japanese. The intent in the original use of the theory is better represented by Justified for time.
Justified for time (JFT)
A system where the material and resources are delivered for the construction site immediately before they are to be used or installed. The deliveries are kept on hold till the last responsible moment to help reduce inventory and multiple handling costs in the project. The direct translation of the original Japanese concept is Just in time.
Last planner system
A production management system developed by the Lean Construction Institute.
A set of ideas, practiced by individuals in the construction industry, based in the holistic pursuit of continuous improvements aimed at minimizing costs and maximizing value to clients in all dimensions of the built and natural environment: planning, design, construction, activation, operations, maintenance, salvaging, and recycling.
Lean construction institute (LCI)
Founded in August of 1997, LCI conducts research to develop knowledge regarding project-based production management in the design, engineering, and construction industry.
Providing more work to the production unit than it is capable of handling.
Failures that do not permit an activity to start by the scheduled time. Caused by lack of directives, prerequisite work, or resources.
The work in construction sequence that needs to be completed satisfactorily for the next activity to kick off.
Ever production process exhibits some measure of variation in its results. The mean (average of these results is defined as the process mean.
An individual or a group of individuals performing a common production task.
The labor, equipment, or tools required to perform a certain activity.
Buffers created in terms of work that is not on the critical path to combat variation in performance upstream. Schedule buffers are often in the form of a workable backlog.
A control system based on statistics developed by Motorola Corporation to manage variation and errors from its production system.
Special cause variation
Deviations from the standard on a production process caused by factors that are external to the process (weather or equipment breakdown).
A theory put forward by Lauri Koskela which states that construction management involves the transformation of inputs into outputs, a flow of material and information through a production system, and management of the value most important to the customers.
The actual amount of output from the production process in a given amount of time.
Refers to the natural differences in traits, qualities, and attributes. Variability is desirable in a construction team to facilitate innovation and creativity.
Refers to random or non-random deviations from the standard process and results caused by internal or external sources.
Work in progress
The inventory present at any given time between the starting point and the ending point of the production process. The work that is started but not yet finished.
Assignments that have met all the criteria needed to start but held by the crew as fall back or fill in activities in case of lack of work from upstream.
Transfer of material or information from one production unit to another, or within a production unit.