Extend parcel boundaries to road centerline to close gaps between parcels

Question

Hello,

I am working with a parcel dataset that follows county parcel boundaries. In areas where roads exist, the parcel boundaries on either side stop at the edge of adjoining parcels, which leaves a gap (the road width) between them.

What I am trying to achieve is a workflow where parcel boundaries from both sides are extended outward so that they meet at the road centerline (from a basemap), effectively closing the gap between parcels and aligning boundaries to the centerline instead of leaving space for the road.

So instead of splitting parcels by the road, I want to expand or adjust both adjacent polygons so their shared boundary becomes the road centerline.

Is there a recommended geoprocessing or editing workflow in ArcGIS Pro to accomplish this at scale?

Any guidance or similar workflows would be greatly appreciated.

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MErikReedAugusta · Answer

To echo some of the others here, there are some serious potential concerns that come with the operation you're trying to do, due to the complex legal nature of parcel boundaries in most jurisdictions.

I feel like the best course is to first take a step back from the immediate problem and ask the question, "What are you ultimately trying to accomplish?  What analysis or operation requires that gap to not be there, and why?"

Because there's a very strong chance you're going to invalidate your analysis and/or cause yourself significant headaches later on.

JonM32 · Answer

@MichaelVolz

I was thinking of this as a one time fix from how the question was asked. Might be for making a static map or something.

Thanks for pointing out good consideration!

MikeVolz · Answer

How are you going to account for maintenance of this layer when roads are edited, added and deleted?  This could be a maintenance nightmare if you want real time data.