Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
VDV obtained for comfort analysis in the closed path.
| Preload | VDVtotal (m/s1.75) | T15 (min) |
Proceeding |
|---|---|---|---|
| Smooth | 7.6 | 75.9 | Action must be taken if driving time is greater than 1 h |
| Strong | 9.0 | 38.6 | Action must be taken if driving time is greater than half an hour |
