GPS way out with arrival times?

[rumy Member Find all posts View Profile Close rumy]

I went to Brisabne this week end, on the way I looked at distance to go which was approx 400km's and sitting on 100km/h. I would have thought 4 hrs till there but it was saying approx 7 hrs so I switched it to arrival time which should have been approx 2pm but it was saying 5pm. My clock in the car is correct and the time zone is correct. It did correct as we got closer but I wouldn't schedule meetings by it that's for sure.

[stephenvsl Member Find all posts View Profile Close stephenvsl]

Re: GPS way out with arrival times?

I think they work by calculating the distance against the speed limits it knows for the roads you're travelling. If it doesn't have speed limit info for the road it defaults to 60km/hr. (400/7 approx 60km/hr). Same thing happens if you travel on dirt roads - if it doesn't know any better, it assumes you'll be doing 60km/hr. Of course, it may know more about our driving habits than we think? Maybe it factors in stops for coffee and antique stores.

[McBAIN Avid PP Poster! Find all posts View Profile Close McBAIN]

Re: GPS way out with arrival times?

g'day mate, they normally take the type of road into account. i know with my non genuine one i can set what speed it should use in it's estimates for different types of road (sealed/unsealed/suburban/highway etc). i had a similar problem where if it didn't know the type of road it assumed 40km/h which pushed the times way out.

not sure if there's a setting you can adjust?

[trowal Lurker Find all posts View Profile Close trowal]

Re: GPS way out with arrival times?

Mines the same in the Kakadu. You can adjust the speed it uses to calculate the arrival time based on the type of roads you are travelling on, I think its under Navigation in the settings menu. The owners manual explains how to do it.

The problem is it only identified 3 types of road, minor street, major roads and freeways (or similar types of descriptions), however I think it sees a country road (sealed road, single lane each way the bush) the same as a minor street, usually set for about 40-60kph which is OK in the city, in the country, it's way out. Freeways, 110kph no worries it's pretty accurate.

This is my major gripe with the Kakadu, the software behind the GPS and trip computer is simple to say the least. The distance to empty figures don't seem to adjust based on the very recent fuel consumption, ie get on the freeway out of the city, consumption drops to 10+l/100kms down to 8ishL/100kms but the range doesn't increase. Holden have been doing this for at least the last 15 years and it's a briliant system. Secondly a $150 aftermarket GPS unit can accurately predict arival times but a factory GPS that would have to cost 10 times that amount can't. Come on Toyota!