What information is available in the roadway and traffic design standards?

The correct choice highlights the significance of usable roadway items across various projects, which is crucial for maintaining consistency in design and functionality. Roadway and traffic design standards provide a comprehensive set of guidelines that ensure various elements of roadways are compatible and serve similar purposes throughout different projects. This includes dimensions, alignment, pavement markings, and other features that need to be applied consistently to promote safety and efficiency.

By having clear specifications for usable items, engineers and planners can effectively communicate and implement design standards that have been established to govern roadway construction and maintenance. This consistency is vital for ensuring that users of the road—motorists, cyclists, pedestrians—can navigate the system safely and predictably.

Understanding the broader context of roadway design also implies recognizing how details of materials, safety measures, or sign layouts are important but fall under more specific categories within the overarching standards. These aspects may guide particular construction methods or operational protocols but do not encompass the wide-ranging application that usable roadway items do across diverse projects.