A State-of-the-Art Review on Empirical Data Collection for External Governed Pedestrians Complex Movement

Figure 3

Summary statistics from Table 1. (a) Histogram diagram illustrating the distributions of the quantity and proportion of empirical studies on different multidirectional movements over different time periods. (b) Tree map to compare the proportion of the empirical study that focused on competitiveness, controllability, subjects, and geometric conditions.

(a)

(b)