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Police: portable speed indicators collect complaint-driven traffic data on First Street
Summary
Sergeant David Cohill said portable speed signs deployed at Beach and First gather counts, average speeds and peak speeds to validate traffic complaints; displays may be turned off but units continue collecting data, and the police traffic sergeant typically uses a seven-day window for analysis.
Sergeant David Cohill of the Jacksonville Beach Police Department told the CRA that portable speed indicators installed near the Beach and First stop sign are typically deployed in response to citizen or business complaints and gather vehicle counts, average speeds and maximum speeds for the traffic sergeant to review.
"As kind of a numbers geek, it'll print out all kinds of graphs and charts and just about everything you want to know," Cohill said, adding that even if the device's display is turned off, it will continue to collect data used to validate or dismiss the complaint.
Cohill said the police generally look for about a seven-day collection period but may vary the window based on battery life and investigative needs. Board members noted the signs might also support an education campaign for First Street traffic changes; Cohill said data can overlap with education or longer-term planning but are usually complaint-driven.
