mathematic model

84.2. Show that the neighboring parabolic characteristics of Sec. 84 first intersect at the same time as the first traffic shock occurs without entrances or exits. Show that the position of the first shock is further along the road if cars are con- stantly exiting than if no cars enter or exit. (Hint: See Sec. 80.] 84.2. Show that the neighboring parabolic characteristics of Sec. 84 first intersect at the same time as the first traffic shock occurs without entrances or exits. Show that the position of the first shock is further along the road if cars are con- stantly exiting than if no cars enter or exit. (Hint: See Sec. 80.]