Network Analyst not solving for actual Closest Facility

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05-05-2018 03:47 PM
MalcolmLittle
New Contributor III

Hello,

I'm running a Closest Facility function within Network Analyst. I'm looking for the shortest route from Incidents to Facilities. After loading the datasets and running it under mostly default options, a few of the output choices are obviously incorrect: see attached picture of one example where the closest chosen is incorrect.

What could be causing such incorrect choices within the analysis?

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MalcolmLittle
New Contributor III

Nvmind. Found out the flaw. There was an overlapping Express route on the built network to the south, which was a very long segment whose length was fully counted in the impedance.

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DanPatterson_Retired
MVP Esteemed Contributor

You are going to have to elaborate on 'mostly defaults'.

why are the facilities so far from the network?

has the network been checked for flaws?

any limitations on the network? (one-way, turn restrictions etc)

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MalcolmLittle
New Contributor III

Nvmind. Found out the flaw. There was an overlapping Express route on the built network to the south, which was a very long segment whose length was fully counted in the impedance.

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