If you have a route, and go off course (Lets say you see a sign for a scenic site)
1) your garmin gps will recalculate a new route from your current position to the next waypoint in the route. (A route is just a series of waypoints).
2) The longer and/or more complicated the route, the more calculation time it takes.
What I would do is create routes for sections that you really want to specifically travel and use waypoints for general "go to" destinations.
Your GPS has preferences....Follow Road, Avoid UTurns, Avoid DirtRoads, Avoid TollRoads, Quikest Route, Best Route, etc. The route between two waypoints can change with the different settings. Pick waypoints to keep you on the section you want.
If you have multiple routes, when you finish one, yes, you have to select the next. This is why laying them out by Day is good. Or you can lay them out at planned stops, gas/food, etc. I prefer not to have a plan and just put in the waypoints for areas of interest, and routes for ensuring certain road segments are travelled.
I don't know about your GPS, but mine will only let me navigate a route using "follow roads" if it has less than 50 waypoints.
Use this trip to experiment. Have one big route, multiple "day" routes, multiple "I really want to ride this road" routes, and many waypoints.
Try different ones out, and see what works best for you.
Originally Posted by ecirwin
I just want to make sure I understand this. If I get off course and it has to recalculate the course, it will take quite a bit of time to recalculate the 5400mile route. It will keep trying to guide me back to my original route as close as possible, right? Or will it totally blow away all the work I've done and just try to lead me home all of a sudden?
I can understand wanting to divide the route up into sections. I am hesitant to lay down a definitive route for each day. I don't want to keep myself on a firm schedule and want to be able to explore if I choose to do so. Also, you never know about weather or health that could mean slowing me down. I want to have a plan, and easily be able to follow. That is why I bought a GPS. So, I can see dividing it up into 1000 miles sections, or whatever. So, at the end of each section, I would have to stop and call up the next part of the route, correct?
Right now, I think I have 5 sections of route, but they are all different sizes from 500 miles to 1600 miles. I have just been building it as I have time. I have to do it at work because I am on a Mac at home. Can't wait for Garmin to come through on the Mac thing. Thanks to James' description, I am pretty sure I will be able to combine all the routes and then maybe I can work on evenly dividing it.