First negative route

 

Went from Mt Airy NC to a NC location nearly 2 hours away west of there , not in a town, along a river. Route ended up going north up through Virginia, then west - as there were no E/W roads in that area of northern NC.
That, and there were a couple roads Garmin didn’t know about, and, I had gravel roads ignored, and would you believe it? Destination was 1-2 miles on a gravel road along side a river!
Garmin route got progressively longer than needed.
Boonies!
This was first time iPhone out did Garmin! By 35 min! We switched.
On start of route back, I turned off gravel road ignore…. And that’s when we discovered Garmin didn’t see or want to use - other paved roads, that were shorter for the route - that iPhone used! Lotsa rural roads were seen! Went back via iPhone, through Virginia again, too! Saved 25 min.

Next time in deep boonies, will check both devices

--
A 2689LMT in both our cars that we love...

Check the ferry setting

On my 2689 there is a setting to avoid ferries which I was unaware of until driving from Charleston SC to Williamsburg VA. Sure enough the GPS took me to a ferry. It probably would have been the shortest time except I arrived as the ferry was leaving the dock. Naptime!!!!

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John from PA

Mt. Airy!

JanJ wrote:

Went from Mt Airy NC to a NC location...

Did you have an opportunity to visit the Andy Griffith museum or enjoy a bologna sandwich while there? Or even have your picture taken with Andy and Opie? wink

--
NEOhioGuy - Garmin 2639, MIO Knight Rider, TomTom (in Subaru Legacy), Nuvi 55, DriveSmart 51, Apple CarPlay maps

Loved bologna sandwiches

NEOhioGuy wrote:
JanJ wrote:

Went from Mt Airy NC to a NC location...

Did you have an opportunity to visit the Andy Griffith museum or enjoy a bologna sandwichwhile there? Or even have your picture taken with Andy and Opie? wink

Thanks for the memory. I grew up In Lorain OH and one of my favorites was a fried bologna sandwich.

--
John from PA

Routes

Sure, My Garmins have given me "negative" routes on occasion. Not always the fastest or shortest, but they nearly always get me there.

Since the calculated time to destination is usually spot on, it allows me to allot enough time for the trip. Most of the time, I never know if there was a better route.

What is a negative route?

I think that's a fascinating concept - I had to read this thread just to find out what a "negative route" is. I assume a "positive route" is one that gets you to the destination, and the positive number is the number of minutes (or hours) that it takes. So, what if that's a negative number? I think that's when you don't reach the destination, and in fact end up far away from both your destination and your home.

For example, if a positive route has a value of 20, then you reach your destination in 20 minutes. Now, a better route might only have a value of 15 (you arrive more quickly), so smaller numbers must be better! If the value was 0, then you must already BE at your destination, so the route doesn't take any time to complete. By definition, that is a "null route". cool

But what about a negative number? That could only mean you are getting farther from your destination after you pass the 0 value. Like, you wanted to go to Kansas City but ended up in Pittsburgh? grin If we go with that way of looking at things, higher POSITIVE values would be worse routes.... like, it should only take 20 minutes, but your route took 40!

Now, there's also an old programming tradition, where if a function returns a value of -1 (instead of the expected positive number), that indicates an error. This is mostly just in legacy system software, from what I see. If we went with that tradition, then a negative value would mean that the route was a complete failure and you ended completely in the wrong place....

if (route > 0) {result = completed};
else if (route < 0) {result = you_are_lost};
else if (route == 0) {result = you_are_already_there};

OK, sorry... I am spending way too much time writing computer code these days. Have a nice Sunday! mrgreen

--
boydsmaps.com

Each device has its own advantages/disadvatages

I was using Garmin maps for navigation before and the avoid highways option mistakenly got toggled on. It told me getting to upstate SC from Columbia, SC was going to take like 8 hours an had me pass over I26 multiple times before I decided to stop and figure out the issue.

Thick slice with another slice of raw onion for me...

John from PA wrote:

Thanks for the memory. I grew up In Lorain OH and one of my favorites was a fried bologna sandwich.

I'm another transplant here, from Parma! White socks and pink flamingos!

--
NEOhioGuy - Garmin 2639, MIO Knight Rider, TomTom (in Subaru Legacy), Nuvi 55, DriveSmart 51, Apple CarPlay maps

Mentioned this to neighbor

Mentioned this to neighbor with Garmin, and he mentioned he had strange routing in that general area too!
I mentioned it bring a ‘negative route’, and he knew exactly what I was referring to!

We both feel it’s due to the back roads area there.
And preponderance of gravel roads.

--
A 2689LMT in both our cars that we love...

Usefull setting

Birddog442 wrote:

I was using Garmin maps for navigation before and the avoid highways option mistakenly got toggled on. It told me getting to upstate SC from Columbia, SC was going to take like 8 hours an had me pass over I26 multiple times before I decided to stop and figure out the issue.

I turn on highway avoidance a lot especially when I am trying to avoid i95 traffic.