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Problems with field Calculator and python scripting

Question asked by Jake_Kaufman on Nov 30, 2014
Latest reply on Dec 1, 2014 by recurvata

I am trying to set up a drive time and I have classified a few roads in my attribute table as follows:

A5=35MPH

A4=30MPH

A3=20MPH

 

So the codes A5, A4, A3 are in a field called CFCC2, My next step was to add a new field to the attribute table called speed. Currently all the values in speed are null. My question is, how can i create a python script so that I have something that will calculate the speeds of the roads based on the classification I have given them.

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