Minimum Required Sample Size To Estimate Traffic Metrics 


We are often asked about the reliability of the penetration rate or sample size of datasets from different data sources – Are they statistically sound to estimate various traffic metrics for the purpose of traffic planning, operations and transportation engineering? This document is intended to provide  guidelines on determining the minimum sample size that is required to estimate statistically reliable traffic metrics.

Download this white paper to learn:

  • Proven formulas for calculating minimum sample size for estimating continuous and proportion-based traffic metrics
  • Data stacking method for meeting minimum sample size
  • Examples of estimating traffic volume, delays and AOG using minimum sample size in iNode