Journals
Publish with us
Publishing partnerships
About us
Blog
Advances in Civil Engineering
Journal overview
For authors
For reviewers
For editors
Table of Contents
Special Issues
Advances in Civil Engineering
/
2020
/
Article
/
Tab 2
/
Research Article
Influence of Large Vehicles on the Speed of Expressway Traffic Flow
Table 2
Level of service for basic expressway segments.
Level of service
A
≤ 0.35
B
0.35 <
≤ 0.55
C
0.55 <
≤ 0.75
D
0.75 <
≤ 0.90
E
0.90 <
≤ 1.00
F
> 1.00