Problem: Rate-determining steps in traffic flow on a toll road.For which of the two scenarios in the figure will one get from point 1 to point 3 most rapidly?

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In both diagrams below, point 1 is just before Toll Plaza A, point 2 is between plazas A and B, and point 3 is just past toll plaza B. (a) Cars slowed at toll plaza A. The rate-determining step is passage through A to proceed to toll plaza B (the diagram shows congestion at the first toll plaza, A). (b) Cars slowed at toll plaza B. The rate-determining step is passage through B (the diagram shows congestion at the second toll plaza, B).


Rate-determining steps in traffic flow on a toll road.

For which of the two scenarios in the figure will one get from point 1 to point 3 most rapidly?

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