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  Module 5: Traffic Engineering
Lecture 40 Traffic rotaries
  

Example

The width of a carriage way approaching an intersection is given as 15 m. The entry and exit width at the rotary is 10 m. The traffic approaching the intersection from the four sides is shown in the figure 1 below.
Figure 1: Traffic approaching the rotary
\begin{figure}\centerline{\epsfig{file=../../../figeps/t46-rotary-intersection-flows.eps,width=8cm}}\end{figure}
Find the capacity of the rotary using the given data.