GARMIN 60CSx : ETA calculation road vs off-road

Peter H. Coffin wrote:

It routed me thorugh a side street (longer distance) in a small rural
farmland town instead of staying on the main street.

This is more complex than it needs to be, and also longer distances. And
more importantly, it is a question of trust. If I worked my but to get
a specific route on RoadTrip, and the GPS doesn't follow that route
precisely, then I can't trust it.



Again, this has to do with the definition of "bicycle". If it means a
child riding a bike with the GPS, then fine, let it detour through small
streets and ride on sidewalks. But if you are doing a 15 hour day on the
bike, (I am about to do 3 such consecutive days, then you don't want
routing problems, especially on the 3rd day when I am time constrained.



RoadTrip is a garmin software product, using the same maps as the GPS.
It is used to plan routes which you then transfer to the GPS.

        If you really want to know if you can trust Garmin GPS the way you
describe then the answer is NO. And the only way you may be able to trust
Garmin GPS is if it has option to create a specific route of your choice.

        I have been using Garmin GPS for around a decade, and I have 5-6 different
Garmin GPSes. And I have mixed feeling between older and newer model, they
all have some advantages and disadvantages. Or newer model doesn't mean
better, and many newer model has fewer important features than older.

        Some model has option to create the specific routes, recording the
previous routes etc. and some newewr model don't have those options. And
most of them don't follow the Fast, Short distance setting, and quite often
they may give different route on the return.        Example,

go through many small town etc.. Or the speed can be 45-60 MPH instead of
75MPH