Technical data

Contents
iv
Chapter 3 Performing Hydrologic Studies 33
Overview of Hydrologic Studies 34
Gathering Data for Hydrologic Analysis 35
Using the Hydrology Calculators 36
Using the Culvert Calculator 38
Using the Rational Method to Calculate Runoff 41
Using the TR-55 Graphical Peak Discharge Method to
Calculate Runoff 45
Using the TR-55 Tabular Hydrograph Method to Calculate
Runoff 48
Estimating TR-55 Detention Basin Storage 52
Chapter 4 Creating Plan Details 55
Overview of Creating Plan Details 56
Creating Intersections 57
Creating Cul-de-Sacs 59
Chapter 5 Viewing and Editing Roads in Profile View 61
Overview of Viewing and Editing Roads in Profile View 62
Creating Existing Ground Profiles 63
Creating Finished Ground Road Profiles 64
Editing Vertical Alignments 67
Chapter 6 Viewing and Editing Roads in Section View 69
Overview of Viewing and Editing Roads in Section View 70
Creating Existing Ground Sections Along a Road 70
Working with Templates 72
Creating Finished Ground Cross Sections 75
Editing Cross Sections 77
Edit Design Control 77
View/Edit Sections 78