Figure 1. Schematic diagram of the mobile ultrasonic stratified water measurement device. ① stepper motors, ② rotor flow meter, ③ horizontal support beam, ④ slide columns, ⑤ ultrasonic transducers.

Macroscopic fundamental diagram (MFD) captures an orderly relationship among traffic flow, density, and speed at the network level. Understanding network-wide traffic through MFDs can optimally ...