An Improved Macro Model of Traffic Flow with the Consideration of Ramps and Numerical Tests

Figure 3

(a) Density-time variation curves on the ninetieth, the eightieth, the seventieth, the sixtieth, and the fiftieth road sections. (b) The phase plane diagram of on the ninetieth, the eightieth, the seventieth, the sixtieth, and the fiftieth road sections.

(a)

(b)