Challenge #27: Spatial Telco Coverage Smoothing

The link to last week’s challenge (challenge #26) is HERE

This week’s challenge is a spatial use case to preprocess a spatial object for mapping. The input file is a single complex polygon that represents a coverage area.

Use Case: A wireless telecommunications company wants to remove holes and splatter from their coverage area for simplified map display. Splatter can be define as unnecessary pieces of the whole polygon.

Objective: Remove all splatter less than 2 square miles and holes from the coverage area.

This exercise can generate varying answers based on the configuration of the spatial tools used for the process. As a result the challenge does not contain an output.

Have fun!

challenge_27_start_file.yxzp

challenge_27_solution.yxzp

Spatial Analysis

Preparation

Advanced

Intermediate

Transform

Spatial

Accepted answers

All comments

TaraM

A solution has been posted

Spoiler

2016-05-31 16_40_15-Alteryx Designer x64 - Spatial_TelcoCoverageSmoothing_Intermediate_ Solution.yxm.png

SeanAdams

Very similar to @GeneR / @TaraM - just did things in a different order.

challenge_27_SeanSolution.yxmd

NicoleJohnson

More or less the same solution as Tara & Sean.

Spoiler

challenge_27_NicoleJohnson.yxmd

MarqueeCrew

Seems like a cloud over the cornhuskers...

Cheers,

Mark

challenge_27_MarqueeCrew.yxmd

estherb47

similar solution to others

Spoiler

challenge_27_EHB_solution.yxmd

LordNeilLord

Pretty much the same as everybody else...

Spoiler

challenge_27_LNL.yxzp

Laurap1228

I really enjoy the spatial challenges because I don't get to use these tools very often at work. This was my first time using the Poly-Split tool. I attempted to use the Buffer tool as well but ended up deciding it wasn't appropriate.

Question - what is the best way to check my results with spatial challenges? Usually, I join my solution to the output file and then add a filter to check the fields are identical. Will that work here too?

Here is my solution:

Spoiler

challenge_27_LP.yxzp

jamielaird

Here's my solution, similar to others.

Spoiler

challenge_27_JL.yxzp

patrick_digan

Spoiler

Good Learning Exercise. I've never used the poly-split before.

challenge_27_start_file.yxmd

nick_ceneviva

Solution is attached!

challenge_27_Ceneviva.yxmd

Natasha

Since I am not doing challenges in a chronological order this one was quick as I already did something similar in one of the later challenges.

@Laurap1228, I think that's a good question as what is the best way to check results with spatial challenges. In this particular challenge if the splatters with area <2sq.mi is not filtered out, the shape of the built polygon looks the same as the shape of the output polygon. So I used Spatial info tool to compare the area between the output polygon and the one I got, which I think is a sufficient check for this challenge.