Could you give me a bit more context so I can point you in the right direction? A few clarifying questions:

  1. What are you trying to test? For example:
    - Soil compaction in high-traffic areas (paths, gates, play zones)?
    - Grass species/cultivar wear tolerance?
    - A new sod or seed mix before installation?
    - Recovery rate after wear?

  2. What kind of traffic? Foot traffic, kids/pets, sports use, mower wheels, or vehicles?

  3. Your setup would also help:
    - Grass type (Kentucky bluegrass, tall fescue, Bermuda, zoysia, St. Augustine, etc.)
    - Region/climate (cool-season vs. warm-season zone)
    - Current condition of the area (thinning, bare spots, muddy, hard)

Quick primer on the common "tests" people run for traffic stress, in case one of these is what you mean:

Tell me which direction you're headed and I'll get specific (including products, seed mixes, or aeration plans appropriate to your grass and region).