You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who sets the reasonable safe speed limit on any roadway?" whose answer is each state or territory.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who sets the reasonable safe speed limit on any roadway
Useful Output:

Doc 1: NCDOT sets the speed limit for all state-maintained roads and can adjust the speed limits after a careful review that is based on several
Doc 2: Because speed limits are enforceable laws, they are set by elected officials. At the state level, RCW 46.61.400 defines the speed limits for
Doc 3: The Federal Government does NOT set or enforce speed limits; this authority belongs to the State and local agencies that have jurisdiction over
Doc 4: To be effective the limits should be enforced by site security and supervisors. Speed limits should be included in the Site Rules with
Doc 5: USLimits2 – a web based tool designed to help practitioners set reasonable, safe, and consistent speed limits for specific segments of roads.