The practical capacity of rotary is given by the formula, where Qp = Practical capacity, w = weaving width, e = average and p = proportion of weaving to non-weaving traffic.
1
\(Q_p = \frac{280w(1\ +\ \frac{e}{w})(1\ - \frac{p}{3})}{(1\ +\frac{w}{L})}\)
2
\(Q_p = \frac{280w(1\ -\ \frac{e}{w})(1\ + \frac{p}{3})}{(1\ +\frac{w}{L})}\)
3
\(Q_p = \frac{280w(1\ +\ \frac{e}{w})(1\ - \frac{p}{3})}{(1\ -\frac{e}{L})}\)
4
\(Q_p = \frac{280w(1\ +\ \frac{e}{w})(1\ - \frac{w}{3})}{(1\ +\frac{p}{L})}\)