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Single Lane Roundabout Planning Spreadsheet

JP Couch
NCDOT
Single Lane Roundabout Planning Spreadsheet was posted on November 15th, 2019 at 7:04 AM EST
regarding Chapter 22: Roundabouts

There are two calculations in the spreadsheet where I cant find the formula being used to obtain the results. Lane Capacity (Step 5) has a formula "=EntryCapacity(D14)" and Average control delay (Step 9) "=delay(D18,D19)". Both of these seem to be using a named cell for calculations but I can't find the formulas in the spreadsheet. Can you better clarify where these calculations are occurring?

(Edited July 15th, 2020 at 1:31 PM EDT)
Paul Ryus
Kittelson & Associates, Inc.
RE: Single Lane Roundabout Planning Spreadsheet was posted on November 25th, 2019 at 7:33 AM EST

Follow these steps in Excel: 1. Open the spreadsheet and enable macros. 2. If you don't have a "Developer" tab in the ribbon (normally appears between "View" and "Help"), select File > Options > Customize Ribbon and then check the box for "Developer" in the "Main Tabs" box on the right side of the window. 3. Select Developer > Visual Basic > View > Project Explorer. If necessary, expand "VBAProject (Single-lane roundabout...)" and if necessary, expand "Modules" underneath it. Double-click "Module1" to find the custom functions.

(Edited July 25th, 2020 at 1:32 PM EDT)

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