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1992-05-06
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Some thoughts on ROADSCAN...
Part 1. DUPE
It's possible to have two different roads from A to B ..
one faster, one shorter. But it's unlikely. This points out
any such occurence.
Part 2a. Unconnected Cities.
Yes, I did this too (with West Palm Beach).. no point in
these if "you can't get there from here".
Part 2b. Single roads.
Places like Lighthouse Point and Lover's Leap may well be
at the end of a spur line. But cities with one road only are
often that way because you forgot to connect up the other roads.
Part 2c. Two roads.
Sounds more likely: a place on the way to
somewhere. Unless this is your destination, it's just another
way point. If it's a small place, you might consider leaving
it out of the system.
Part 2d. Three roads.
Quite normal, really. But sometimes this point is a
"nowhere" junction that hardly has a name. If so, you could
connect up the towns at the other ends of the roads and save
a city entry.
Part 3. Direct not the most direct.
The computer takes EVERY road, and notes the end points.
Then it asks, "Calculate the best route between these two places".
If it doesn't get the road it started with, it will tell you about
it. For example: if New York to Washington showed as 400 miles,
but Philadelphia showed as 150 miles from both cities ... the
computer would NEVER take the direct road.
Occasionally, this can be OK as in Part 1: the direct route
is, say, faster, but the "via" route is shorter.
--------------------
All in all, RoadScan gives you data to think about. You
may well happily ignore most of what it says.