12.2.2 Computational Steps – Stage 1 ICE
The computational steps make use of the peak hour service volume and capacity evaluation in the FHWA CAP-X model and the NCHRP 1043, Exhibit 8.6, Planning-level sizing guide. For a step-by-step guide on conducting a peak hour volume capacity evaluation, see
Appendix M, Section 1 – Planning Level Roundabout Sizing Guide
.