What Daily Effective Circulation Means on a Billboard
What Is Daily Effective Circulation Daily effective circulation, or DEC, estimates how many adults could actually see your billboard on an average day. It starts with the traffic count on the road, then adjusts for how many people ride in each vehicle and how many hours the board is visible. It is the number that tells you what you are really buying. Most buyers only ever hear the traffic count. That number describes the road. DEC describes your board on that road, and the two can differ enormously, sometimes in directions that surprise people. Key Takeaways Traffic count describes the road. DEC describes your board. DEC adjusts for people per vehicle and hours of visibility, so illumination changes it. A static bulletin can out-deliver a digital face on the exact same road. Weekly and monthly impression figures are usually just DEC multiplied out. DEC is a planning estimate, not an audited audience measurement. How DEC Is Built From a Traffic Count Start with the roadway count, which ...