Video knowledge note
Traffic Video Resolution and Frame Rate
What image detail and temporal continuity mean for traffic observation.
By SWAT Alliance Editorial Team · Published 25 August 2026
Short answer
Resolution and frame rate should be judged against the smallest detail and fastest movement the study needs to identify, not by a generic minimum claim.
Before the project starts
- Confirm the required vehicle, movement or active-travel detail.
- Check source compression and digital zoom behaviour.
- Verify that timestamps and playback are continuous.
Practical approach
Use the original or approved source wherever possible. Review whether a class cue, crossing path or queue reference point remains visible at normal playback and when a record needs closer inspection.
Checks and limitations
Test difficult conditions such as overlapping vehicles, fast turns and lower-light periods before accepting a source.
Higher resolution does not compensate for poor angle, blocked view or motion blur.
