Research Article

Macroscopic Traffic State Estimation: Understanding Traffic Sensing Data-Based Estimation Errors

Figure 3

Visualization of the AIS model and AFS model fit and shape for an individual representative of free flow and congested area in the space-time domain. Furthermore, the total model fit, in terms of MAPE, is given for both models.
(a) Free flow: = 49 veh and  km2/h2
(b) Congestion: = 125 veh and  km2/h2
(c) Mean Absolute Percentage Error (MAPE) for the AIS model
(d) Mean Absolute Percentage Error (MAPE) for the AFS model