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System Setup
Reference
• Shorter Distance: this setting causes distance to be used as the criteria for calculating your route.
The routes calculated with this setting will be shorter in distance but may take more time to
drive.
• Off Road: this setting causes your route to be a direct line from you to your destination. This
may be useful outside of detailed map coverage areas.
Calculation Method – Allows you to control how thoroughly the StreetPilot III searches for the
perfect route. There is a trade-off here between the length of time it takes to fi nd a route and the
quality of that route (i.e., given the calculation criterion selected under ‘Route Preference’ settings).
The following options are available:
• Quickest Calculation: this will give you the fastest results, but the least optimal route.
• Quick Calculation: takes a bit more time to calculate than the ‘Quickest Calculation’ method, but
produces a better quality route.
• Better Route: even better quality route, but longer calculation time than the ‘Quick Calculation’
method.
• Best Route: this will give the most optimal route, but will take the longest time to calculate.
Ask Me My Preference
– Determines whether you will be prompted, before route calculations, to
change your current Route Preference (‘Faster Time’, ‘Shorter Distance’, or ‘Off Road’). This setting can
also be changed from Yes to No from the Route Preference page. The following options are available:
• Yes: this setting results in the Route Preference page being displayed before route calculations.
This setting is recommended if you frequently have a different preference for your routes.
• No: this setting skips the Route Preference page before route calculations. The StreetPilot III will
use your current Route Preference for all route calculations. This setting is recommended if you
usually have the same preference for your routes.
The ‘Ask Me My Preference’ setting can also be changed
from the Routing File tab.
Using the ‘Calculate Routes for’ option allows you to take
full advantage of the routing information contained in
the City Navigator maps for planning the most
effi cient route for your type of vehicle.
190-00256-10_0B.indd 45 1/13/2003, 10:34:09 AM