The speed-density relationship for a road section is shown in the figure.
The shape of the flow-density relationship is
(A) piecewise linear
(B) parabolic
(C) initially linear then parabolic
(D) initially parabolic then linear
The speed-density relationship for a road section is shown in the figure.
The shape of the flow-density relationship is
(A) piecewise linear
(B) parabolic
(C) initially linear then parabolic
(D) initially parabolic then linear