Research Article

Expressway Usage Pattern Analysis Based on Tollgate Data: A Case Study of the Shandong Province, China

Figure 5

Spatial distribution of trip volumes during a peak hour (10:00 a.m.–11:00 a.m.) and an off-peak hour (12:00 p.m.–1:00 p.m.). Color and width of a link illustrate volume over trip volumes.
(a)
(b)