Using survey data in OpenRoads is often the fastest, easiest and most accurate way to create a terrain model that can be used by a design team to build a detailed model. Over the course of any modeling, many engineers will find the need to edit element data along the way.  Within OpenRoads, there are multiple ways to edit observation data: graphically, through element properties and from within the data file. 1: Graphical Editing Graphical editing is the first and likely most obvious. Simply select the element that you would like to edit to see all of the element details including  horizontal and vertical angles, slope distance and rod height, as well as the data file where the data is stored and the field book association.  To edit, simply click on the slope distance or the angle—that change will be immediately visible in your model. https://youtu.be/fU7pVMRAJKk 2: Edit Observation Properties The second method is to use the Observation properties list visible in the table to the left. Just click on the property that needs adjustment such as a new number for rod height, horizontal angle, vertical angle,  or slope distance for example. https://youtu.be/g0544HoUcjs 3: Drill into the Data File The