I am curious about the justification and validity of a traffic equation we are currently about to use within our research- and working group. It is about the relationship between an inductive loop sensors $s$ occupancy duration $OCC_s$, the traffic density $d$ and and max. traffic density $d_m$, all with respect to an approach of a junction (road segment):
$$OCC_s=\frac k k_m$$
Is this a valid equation?