Research Article

Exploring Travel Time Distribution and Variability Patterns Using Probe Vehicle Data: Case Study in Beijing

Figure 2

Unit distance travel time for different types of road through the day.
(a) Urban expressways on weekdays
(b) Urban expressways on weekends
(c) Auxiliary roads of urban expressways on weekdays
(d) Auxiliary roads of urban expressways on weekends
(e) Major roads on weekdays
(f) Major roads on weekends
(g) Secondary roads on weekdays
(h) Secondary roads on weekends