Traffic signals can be installed after what is determined through a warrant study?

The correct response is grounded in the concept of a warrant study, which is a systematic process used to assess the necessity of traffic control devices, like traffic signals, at specific intersections or road segments. A warrant study evaluates various factors such as traffic volume, accident history, and the types of road users involved, determining whether the installation of a traffic signal is justified based on established criteria.

When the warrant study indicates a clear need for a traffic signal, it provides the necessary justification to proceed with the installation. This justification of need is crucial as it ensures that resources are allocated effectively, contributing to traffic safety and efficiency. Without this step, the decision to install traffic signals could be arbitrary or based on subjective opinions, rather than data-driven analysis.

Community feedback, funding approval, and schedule availability are all operational or logistical considerations that may influence the timeline or feasibility of installation but do not directly relate to the fundamental requirement of establishing a need through a warrant study. Hence, the appropriate condition for proceeding with the installation of traffic signals is the justification of need derived from a completed warrant study.