Population Input as plot areas

Hello Sussendar, 

As mentioned by you Nearest node method in Loadbuilder will work in this case. To view the drawing representation you can apply the shapefile in background of the model which will look kind of the below screenshot. So the manholes falling into a polygon will receive loading from that polygon. 

The below technote explains in details how each of the loadbuilder method works and what data is required, for your reference. 

How do each of the Loadbuilder methods work? 

To add to Sushma's answer -

I see you mentioned that you'd like to visualize the area, as well as the "this particular plot area will connect to this particular manhole". Depending on the LoadBuilder method used, the population associated with a particular shapefile may be distributed to more than one manhole. For example if you use a Thiessen Polygon service area layer, multiple service areas may overlap a single plot area polygon.

If you use the nearest node method, there would be a single manhole for each plot area, and LoadBuilder will add a new field to the shapefile to track which node ID the shapefile was allocated to. See: How to view demand or load allocation after a Loadbuilder run?

However when adding a polygon shapefile as a background, the areas will show, but not any text metadata. If you have a reasonably low number of plot areas, you could use the text and line tools (in the Layout tab, if using the CONNECT Edition) to manually annotate the allocations. You could also try the steps in the following article to convert labeling in ArcMap to DXF text to be added as a separate background: Displaying Shapefile Labels (Text) As a Background

Hello Sussendar,

Here is an alternate approach that will show a dashed line from the loading polygon to the corresponding manhole.

How to display loading polygons with dashed lines leading to corresponding nodes

Hi, Followed your Solution ,Worked just as I wanted , Thank you.