Journals
Publish with us
Publishing partnerships
About us
Blog
Discrete Dynamics in Nature and Society
Journal overview
For authors
For reviewers
For editors
Table of Contents
Special Issues
Discrete Dynamics in Nature and Society
/
2015
/
Article
/
Tab 1
/
Research Article
Establishment of Track Quality Index Standard Recommendations for Beijing Metro
Table 1
The allowable minimum curve radius for class I and II railroad tracks shared by passenger and freight trains [
8
].
Permissible travelling speed
(km/h)
160
140
120
100
80
Surrounding conditions
General
2000
1600
1200
800
600
Difficult
1600
1200
800
600
500