Departments of Main Roads are planning to upgrade some roads around the CBD, over a three-day period. They need to divert traffic during this planned closure. What method would be best to determine how many cars use that route at a particular day and time, to inform their decision making?
Select one:
a.
Experiments.
b.
Observational.
c.
Surveys
d.
Interviews.
e.
Biometrics.