… in traffic speeds following the posting of new or revised speed limits. Furthermore, no … How are realistic speed limits established? Arizona Revised Statutes, Section … and traffic investigation." Speed zoning in Arizona is based on the widely accepted …
… of morning rush-hour traffic, expanding an Arizona Department of Transportation program … traffic is flowing. Drivers may notice new signs along southbound SR 51 on-ramps … traffic data. The SR 51 ramp meters using the new responsive system are programmed to adjust …