Linear Line Of Sight

Linear Line Of Sight tool to determine visibility between observers and targets. The analysis can be apply in an urban setting area, Military bases, etc… which includes buildings, walls, and other structures. The Linear Line Of Sight tool will use the features representing these structures to identify obstructions between the observer and targets.

Step 1,

Open ArcMap and add base map and a obstructions layer. (you can create your own Obstruction layer )

Step 2, 

Visibility and Range Tools - Visibility Toolset - Liner line of sight 

Step 3,

Using Editor Tool bar we can mark observers point. 

Step 4

Then we have to mark targets

Step 5,

Change the symbols of observer and the targets  if required. 

Step 6

We can change the obstruction's height, target height and even observers height by using attribute tables of each layers. 

Step 6

Select your surface as "Input surface", as a "Input obstruction Features" select obstruction layer. As a output give a any name you like....

Step 7

 press "OK".

The lines are colored green and red to correspond to the part of the line that is visible (green) and not visible (red) to the observer.Note that at this scale, buildings, not the terrain, are the primary reason for the observer not being able to see the targets.