Consider the four points P, Q, R, and S shown in the Greenshields fundamental speed-flow diagram. Denote their corresponding traffic densities by kp, kQ, kR, and ks , respectively. The correct order of these densities is
1
\(k_P>k_Q>k_R>k_s\)
2
\(k_S>k_R>k_Q>k_P\)
3
\(k_Q>k_R>k_S>k_P\)
4
\(k_Q>k_R>k_P>k_S\)