What type of plan designation does a prefix other than I, L, O, Q, S or T typically represent?

In the context of FDOT plan designations, a prefix different from I, L, O, Q, S, or T indicates a specific category for the plans or documents being referenced. When the prefix is not one of those letters, it generally signifies that the plans are related to roadway aspects.

Roadway plans involve the layout, design, and construction details of the road systems, including alignments, elevations, and cross-sections. These documents are crucial for the successful planning and execution of roadway projects, as they provide comprehensive details that guides construction teams and engineers on how roads should be structured to meet safety and usability standards.

Understanding this categorization helps in navigating plan sets and ensuring that the correct type of plans are referred to during various phases of transportation projects. This context makes clear why a prefix outside of the specified letters is associated with roadway plans rather than structures, signalization, or traffic plans.