Outcall would mean that she is traveling out of HER way to get to you.  
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Some (many?) ads will actual specify the travel boundaries and added costs. That cost will depend on the geographic area, too. Traveling long distances is more common in TX than in NYC.
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"Outcall $X.  Beyond 30 minutes travel, add $50." or some such thing. Of course, since nobody knows what her origin is or what your location is, you'll have to work out the details with the Provider.  "Outcall" with no spec usually implies that the fee includes travel to the local downtown areas or major hotels in that city regardless of her origination point.  
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You really have to be up front with each other using approximate locations and work out whether (her origin, your location) are included or if they are outside her normal area and what adjustment she would require.

I am spending more time in the car, than I am with you.

the market segment I frequent the most (AAMP) is incall only, so when I'm traveling on business, that's when I often see indies because they do outcall to my hotel.  Rates are either time or distance based and are usually pretty reasonable, IMO.  Some want the same rate for travel time as they do for playtime, and that's a pass for me.  The travel premium 30 minutes of travel usually runs me about 25-30% of the playtime rate.  Its worth it for me not to have to go find them in a city I'm not familiar with.  

I'm a rural girl...

Driving an hour or two is pretty much par for the course, and I certainly don't mind. That's only in my opinion of course - most of my engagements are overnight or longer, and all are long enough to be well worth the trip.  

~Mme X~

If I was rural

I would like female pigs
How do you call female pigs?  
Let me look it up...
a sow
see if I weren't a city dweller I would have know that.  
You guys have some crazy topics here.