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Customize Routes to Avoid or Favor States
You can instruct PC MILER to either favor or avoid certain states when
generating a route. Let’s
recalculate our Maine to South Carolina route with its current settings, but
this time we’ll avoid
routing through Massachusetts, and favor routing through Vermont.
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Click on the Route 3 window, then click on Options in the route entry window and
make sure the
Use Custom Roads box is checked. With custom routing enabled, click OK and
return to the
route entry window.
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Next, click on the State Report button (or press the <F6> key) on the tool bar
to view a
summary of mileage, times, and costs listed alphabetically by state. Examine the
list of states
to confirm that Route 3 travels through Massachusetts, then close the report
window.
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Select Manage Custom Roads from the Tools menu, and click on the
State tab in
the Custom
Roads Manager.
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Click on the check box next to Enable State Avoids/Favors (this
must be checked
for state
preferences to work!).
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In the drop-down pick list of states, highlight Massachusetts. Click on the
Avoid button
below to add that state to the Avoids list on the left-hand side.
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Now highlight Vermont on the pick list of states, and click on the
Favor button
below to add
that state to the Favors list on the right-hand side.
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Click OK to save these changes.
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Click on the Run button to re-run the route.
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Now we will re-run the State Distance Report, but this time the states will be
listed in the
order traveled rather than alphabetically. Click Options in the Route 3 window
and choose
Route under State/Country Report Order. Then click OK and press <F6> to re-run
the report.
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You’ll see that PC MILER has plotted the new route completely outside of
Massachusetts,
using Vermont (and also New York State) as a byway! Check this new route on the
map too.
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