?

Log in

No account? Create an account

Peoria. IL

« previous entry | next entry »
Jul. 25th, 2006 | 01:11 pm

3690 miles into the trip and we're heading back. Google says we have "1884 mi (about 1 day 2 hours)" left, although it recommends a different route than we'll be taking. The geek side of me (I was going to say inner geek, but my geek waives high and proud for all to see) is curious to know how these mapping sites pick their route. Heading SW through St. Louis to Oklahoma City is easily a better choice than west across I-80. Mileage wise anyway. Scenery wise they all suck in different ways.

Link | Leave a comment |

Comments {3}

Default

(no subject)

from: amylgam
date: Jul. 25th, 2006 09:09 pm (UTC)
Link

I've wondered the same thing--the route Google maps chooses from here to utah is always going up I-17 to Flagstaff and cutting across on I-40, when I know that taking 60 to Kingman is shorter.

Reply | Thread

Default

(no subject)

from: amylgam
date: Jul. 25th, 2006 09:19 pm (UTC)
Link

And, fwiw, Mapquest comes up with the St. Louis -> Tulsa -> Albuquerque route.

Reply | Parent | Thread

Fuzzy

(no subject)

from: mostlyfuzzy
date: Jul. 25th, 2006 09:44 pm (UTC)
Link

The route chosen is usually done on the "Best Route By Time" method. Interstates have the highest average speed, while US, State, and County routes have a lower average speed. The method will choose interstates over US routes, regardless of how scenic it is.

More sophisticated programes (read: $$) allow you an option to choose other "best" factors for routing like shortest and excluding routes that may be underconstruction, or thru the center of metroplexes.

Reply | Thread