Which of the following is an example of a source control waste reduction strategy?

Utilizing pre-ordering of materials cut to size exemplifies a source control waste reduction strategy because it directly minimizes waste generated during the construction process. By having materials prepared to the exact dimensions needed for the project, the potential for leftover scraps that cannot be used is significantly reduced. This approach not only decreases the amount of waste produced on-site but also enhances efficiency since less time is spent on cutting materials during construction.

In context, while other strategies might contribute to waste management or logistics during a project, they do not reduce the actual amount of waste created at the source like pre-ordering materials specifically tailored to the project's requirements does. For example, modular construction can lead to less waste overall but does not directly address the initial waste at the source for every material used. Similarly, increasing construction timelines may not effectively address waste reduction, and while shipping multiple orders together improves efficiency in logistics, it does not impact the amount of waste generated from the materials themselves. Thus, pre-ordering materials cut to size is a focused approach to waste reduction at its origin.