15.6.4 Weaving Sections
Weaving sections occur when entrance ramps are closely followed by exit ramps and vehicle paths cross each other. Such areas present special design problems due to the concentrated lane changing maneuvers of merging and diverging traffic. The development of the design involves the following factors:
- Desired mobility standard;
- Length;
- Number of lanes;
- Traffic volumes;
- Weaving and non-weaving vehicles; and
- Average speed.
For design guidance refer to Design Controls and Criteria, Chapter 2 of
and from Chapter 24 of the
See
for additional information on weaving lengths and ramp spacing.