What factors are included in condition diagram characteristics?

The inclusion of lane configurations and traffic control in condition diagram characteristics is essential because these elements significantly impact traffic flow and road safety. Lane configurations refer to the arrangement of lanes on a roadway, including the number of lanes, whether they are dedicated for specific uses (such as carpool lanes, bike lanes, or turning lanes), and how they are organized in relation to one another. Properly understanding and documenting these configurations allow engineers and planners to assess road capacity, predict congestion points, and design improvements.

Traffic control encompasses a variety of signs, signals, and roadway markings that govern vehicle operation. These controls influence driver behavior, such as stopping at red lights, yielding to pedestrians, or following speed limits. The effectiveness of traffic control measures affects safety, operation efficiency, and accident rates. Therefore, both lane configurations and traffic control provide critical data for evaluating the overall condition of a roadway, enabling the identification of areas needing maintenance or enhancement.

The other options, while related to road conditions, do not encompass the full range of factors critical to condition diagrams as effectively as lane configurations and traffic control do.