[talk-ph] OSM routing problems...
some experiences in routing from QC to Paete, Laguna GPS initially wanted me to take Ortigas avenue probably via Manila East Road, kept on bugging me even on Shaw. After Magallanes, it wanted me to take Sucat road. unit only corrected itself after passing Alabang and guided me to the correct route though I took the narrow bypass route in Calamba routing from Paete to Nagcarlan underground cemetery was fine except the untagged one-way road in nagcarlan public market (now corrected) my earlier reported routing problem in Munoz, QC was corrected with the making of Roosevelt avenue into a road with no center island. Note San Francisco del Monte (frisco) still has the center island on OSM even though it really doesn't exist except on the bridge near Roosevelt. Expect routing errors in that area as i still don't dare touch the street (what's an admin boundary, btw?) I'm trying to know the routing algorithm of Garmin in determining route, and the effects of GPS unit settings (shortest route, ecoroute). I presume certain factors like distance, max speed, highway type, lanes are all included but i don't know which is considered first. (one of my past jobs is an inter-network routing engineer, finding optimum packet paths on the Internet for a telco/ISP) that's why i wanted to know how i can tweak routes to suit my needs) I'm using gps routing just to know if it's but i still don't trust it. as the saying goes, Trust but verify...or better: verify then trust! -- --- I explore, therefore I blog. http://www.backpackingphilippines.com ___ talk-ph mailing list talk-ph@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ph
Re: [talk-ph] GPS-Trusting Tourists Rescued From Australian Forest
If your not sure Stop.. This guy had no GPS but kept on going and going.. An 81-year-old Australian man became lost on an early morning drive to the shops and ended up almost 600km (370 miles) away from his starting point. http://news.bbc.co.uk/2/hi/8365665.stm On Tuesday 11 May 2010 4:14:16 pm maning sambale wrote: > That's why eventhough I (we) collected the data, I still don't trust > my own GPS. :) > > Seriously though, the article provides very good insights on what we > should add in the map other than roads. > - access restrictions > - gates and other barriers > - natural features like cliffs and mountain peaks > - isolated community centers (purok, sitios) > - etc. > > PS. I just love roadguide.ph user's mantra. > "The map is simply a guide." > > On Tue, May 11, 2010 at 4:04 PM, Jim Morgan wrote: > > Carlos Tirona wrote, On Tuesday, 11 May, 2010 03:52 PM: > >> Three South Korean tourists whose trust in their Ford Falcon’s GPS got > >> them stuck in a gully in southeast Queensland’s Cordalba State Forest, > >> near Childers. > >> > > :-) Shortest Distance routing perhaps? I'm sure there must be a 'Pick > > : another route' button. > > > > Jim > > > > ___ > > talk-ph mailing list > > talk-ph@openstreetmap.org > > http://lists.openstreetmap.org/listinfo/talk-ph > ___ talk-ph mailing list talk-ph@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ph
Re: [talk-ph] GPS-Trusting Tourists Rescued From Australian Forest
On Tuesday 11 May 2010 4:04:02 pm Jim Morgan wrote: > Carlos Tirona wrote, On Tuesday, 11 May, 2010 03:52 PM: > > Three South Korean tourists whose trust in their Ford Falcon’s GPS got > > them stuck in a gully in southeast Queensland’s Cordalba State Forest, > > near Childers. > > > :-) Shortest Distance routing perhaps? I'm sure there must be a 'Pick > : another route' button. This happens so often in Australia, a Highway in someplaces maybe a dirt track. Roads that traverse the country may not be up to International or Australian Standards but the real Aussie knows that before they head off. Never expect the road to be there when you arrive and never expect it to be usable.. always plan for diversions if needed. Shortest route technology is worse in the UK they get Trucks Stuck down country lanes where they need to extract the trucks with cranes.. http://www.switched.com/2009/02/27/gps-leads-truck-to-impassable-road-for-5- days/ But then again the police directed a similar truck into a no go street in cornwall so people and GPS need to think twice.. ___ talk-ph mailing list talk-ph@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ph
Re: [talk-ph] GPS-Trusting Tourists Rescued From Australian Forest
That's why eventhough I (we) collected the data, I still don't trust my own GPS. :) Seriously though, the article provides very good insights on what we should add in the map other than roads. - access restrictions - gates and other barriers - natural features like cliffs and mountain peaks - isolated community centers (purok, sitios) - etc. PS. I just love roadguide.ph user's mantra. "The map is simply a guide." On Tue, May 11, 2010 at 4:04 PM, Jim Morgan wrote: > Carlos Tirona wrote, On Tuesday, 11 May, 2010 03:52 PM: >> Three South Korean tourists whose trust in their Ford Falcon’s GPS got >> them stuck in a gully in southeast Queensland’s Cordalba State Forest, >> near Childers. > > :-) Shortest Distance routing perhaps? I'm sure there must be a 'Pick another > route' button. > > Jim > > ___ > talk-ph mailing list > talk-ph@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-ph > -- cheers, maning -- "Freedom is still the most radical idea of all" -N.Branden wiki: http://esambale.wikispaces.com/ blog: http://epsg4253.wordpress.com/ -- ___ talk-ph mailing list talk-ph@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ph
Re: [talk-ph] GPS-Trusting Tourists Rescued From Australian Forest
Carlos Tirona wrote, On Tuesday, 11 May, 2010 03:52 PM: > Three South Korean tourists whose trust in their Ford Falcon’s GPS got > them stuck in a gully in southeast Queensland’s Cordalba State Forest, > near Childers. :-) Shortest Distance routing perhaps? I'm sure there must be a 'Pick another route' button. Jim ___ talk-ph mailing list talk-ph@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ph
[talk-ph] GPS-Trusting Tourists Rescued From Australian Forest
Just sharing... The Gist: Three South Korean tourists whose trust in their Ford Falcon’s GPS got them stuck in a gully in southeast Queensland’s Cordalba State Forest, near Childers. The Link: http://ht.ly/1IuwN For those too lazy to click, The Article: GPS-Trusting Tourists Rescued From Australian Forest AUSTRALIA, TRAVEL NEWS — BY DAVID CHALK ON MAY 7, 2010 AT 4:25 PM “A TIP for tourists: if your GPS system leads you into a forest, forces you to unlock gates and move rocks blocking the road, chances are something is amiss.” Thus begins the Courier Mail story of three South Korean tourists whose trust in their Ford Falcon’s GPS got them stuck in a gully in southeast Queensland’s Cordalba State Forest, near Childers. Attempting to drive from Brisbane to Rockhampton (about a nine hour drive according to Google Maps), the tourists followed GPS instructions onto gravel roads, then dirt roads, then through a couple of gates. They passed danger signs (which since they didn’t speak English they may not have understood), and they moved rocks blocking one road. By the time their car got stuck in the gully they were in an isolated part of the forest that was nearly inaccessible. After an unsuccessful attempt to free their car (and its awesome GPS), they walked several kilometers through the forest trying to get cell phone reception. They were finally able to make an emergency call to Bundaberg police at 1am. After some initial difficulties finding a translator, authorities were on their way, eventually finding the stranded tourists more than six hours later. “We had an approximate GPS location for them, but it was in an area that was extremely difficult to get into — practically inaccessible — and we couldn’t find them,” said Childers Police officer in charge Sergeant Geoff Fay. Sgt Fay added that the South Korean tourists were not the first group in the area that followed their GPS into a situation requiring rescuing. About a month earlier GPS-following backbackers from Bundaberg had gotten lost in the same forest. Sgt. Fay’s advice was similar to the Courier Mail’s: People need to know how to use their GPS and navigation systems. They also need to use their self-preservation skills, and turn back if something looks wrong or if signs don’t match what appears on their GPS.___ talk-ph mailing list talk-ph@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-ph
