Delegates were also given the opportunity to apply their newly-learned principles to Thomas Thomson's cherry-picking operation, involving waste walks and activity sampling
to review the state of the company.
Detailed time studies were used to determine feller-buncher and skidder productivity, whereas activity sampling was used to assess system productivity per unit volume and area for processing and loading.
To identify bottlenecks and determine landing efficiency, fixed-interval activity sampling information was collected for each machine during the productivity study.
Airborne Cryptococcus gattii concentration before and during contracted tree-cutting activities Tree-cutting activity Sampling
method Quiescent Swab Air; Andersen 6-stage * Limb removal Air; Andersen 6-stage Air; Andersen 6-stage Felling Air; RCS-Plus, ([dagger]) 12-15 m above ground Air; RCS-Plus, 12-15 m above ground Cutting limbs Air; RCS-Plus, 6 m above ground Air, RCS-Plus, 6 m above ground Cutting tree trunk Air; RCS-Plus, 0-3 m above ground Wood chipping Air; RCS-Plus C.
Use techniques such as Pareto analysis and activity sampling
to facilitate data collection.
Since each machine was fitted with a clock, it was comparatively easy for the operators to undertake activity sampling in order to ascertain the levels of machine utilization.
After discussion, it was agreed that the survey would take the form of activity sampling to be carried out by supervisors.