Hoping to work further on ncn1 in Dartford area later this week. Think I can fill in some of the missing bits, but need the time to cycle there.

Have added a few roads from memory, will be doing more work on this area - Daphne knows area well & will get her to carry a GPS. Does seem to be a poor satellite signal there, so not all tracks are as accurate as would like. Am waiting on new GPS to come into stock - perhaps when this arrives will improve the tracks.

Had a quick (long actually!) look through the mapping done so far in Durham, Maidstone, Dartford & Swanley.
Think I've now corrected all the errors I made previously;
Pilgrims Way, have made a residential road again,
Birchwood Rd - now a road again.
.
Other bits look okay now - if anyone reads & notices something wrong, let me know or i'll keep making the same mistake!

Ha, quite a few new lakes have been rendered. This keeps getting better. I hope to finish this project before June.

During the last few months, I have done some start-up experiments trying to map my home area of southern Sunnmøre, Norway. However, I have noticed that in many places there is a mismatch between the pre-drawn coastline and the GPS traces. The mismatch seems to be quite consistent, approx. 50 meters too far north, and also a little too far west. However the coastline matches quite well the aerial maps (both Yahoo and Open Aerial), so I wonder if there is some systematic error in the software that produces this inaccuracy? Until I have more GPS tracks I can't rule out an error in the GPS tracks, so for now I will not edit the coastline. However this leaves the road 50 meters into the ocean many places, not quite desirable, so if someone has the capacity to make more tracks and verify the error, it would probably be a goood idea...

I noticed amillar's diary entry about hiding your home on GPS tracks so thought I'd mention a script I wrote to process GPX files:

http://public.subversion.nexusuk.org/projects/kismet-tools/trunk/gpx_trim.py

This lets you specify bounding boxes - any track segments starting or ending in the bounding boxes will be trimmed to remove the bits contained in the box. If the track just goes through the bounding box instead of starting/ending in it, it is left as-is.

Вече се вижда част от картата на Русе :)

At the Village "Blankenloch" north of Karlsrueh, there were already some streets and cycleways mapped by previous mappers. Last saturday, i took my bike to map the remaining streets and collecting street names. So, now that village should be complete regarding the streets. Still only very few POIs are mapped, and some street names are missing, too.

I have been mapping my hometown (Viña del Mar, Chile) for the last couple of weeks. It is a medium size metropolitan area with about eight hundred thousand people living on it, and I am the first one mapping the city in OSM!!!

Until today I did it with a GPS/Bluetooth gadget and my laptop running Navit (with logging configured in the configuration xml file) over Ubuntu 7.10 (It was a real PITS since the resulting gpx files didn't had the right sintax for OSM so I had to worked them to add a time tag, also I was limited to the laptop battery life), but today I found a really nice piece of free software for my Blackberry 8100. It is called bbTracker (http://www.bbtracker.org/). Once it is installed in your smartphone you have to configure it to connect to your Bluetooth GPS (It is not included with your BB but it's quite cheap, probably less than 50 dollars), and you start making tracks (showing you the advances in the screen of the BB), and export those tracks in a gpx file, fully compatible with OSM :) You can configure it to save the files in a folder of your SD card (I am saving it in the Video folder and works flawlessly) and then you can extract all your tracks with your preferred BB management software or a card reader (I just connect the BB with a USB cable and see it as an external drive).

Conclusion, no more laptops in the car (bulky, with the risk of being robed, with the risk of damaging the HD with the jumps, battery life limits, etc.), just my BlackBerry and the GPS/Bluetooth gadget that is even smaller than the smartphone.

Cheers

I'm mapping the town of Williams Lake, British Columbia, Canada. After uploading my tracks and adding my roads I like to see how it looks compared to some of the online commercial options. It's always satisfying to see errors in commercial road data when mine is right :) I've already found at least 3 gross errors that my map _won't_ have (especially roads going over water or through buildings). Here's one road I won't want to take (see imagery):
http://maps.google.com/?ie=UTF8&ll=52.119953,-122.121813&spn=0.003538,0.009999&t=h&z=17

Hello all! I am Finnán Barry, and I am in Clonmel, Tipperary, Ireland. I hope to be mapping out my sizable hometown over the coming weeks as part of my transition year.

I'm looking for tips and pointers. I'm not old enough to drive but I wish to partake in this map program. I currently have a BGT - 11 GPS, bike and enthusiasm.

this is a first shot at putting Mariensee on the map.
Using tracks seems to work. also tagging the streets and paths. Only problem is: the new map cannot be seen by the public. odd.

I totally agree with netman55 about the problems with tracing from imagery.

To get the street names and even more importantly the "onewayness" of the street, you do actually have to drive the street.

As a bonus you can even start to populate the POI database , E.G toilets, parking areas, parks , hospitals, pharmacys, schools etc.

Some of the areas have been mapped out remotely using satellite views, however on the ground things are somewhat different. Having done a walk around Gravesend today, quite a few road have missed, roads put in where there are none. The main problem is that shadows on the image causes errors to made.

Seems a shame that someone has taken a lot of time and effort to map out ways from
an image, only for then someone, me in this particular case, to rework lots of areas.

Another problem I have noticed is that the some of the imagery is quite old, some
I have seen is at least two years out of date.

So take care when using satellite views for mapping, try to use other sources as well if that is at all possible.

I have finally made my first submission of about 600-650 map points.

Submission is of Vake district in Tbilisi, Georgia. This is still very much work in progress and I'll be adding more stuff as time permits.

Cheers to mappers and thanks to OSM for making it possible! ;)

It's easy to collect GPS track logs when driving around running errands. Since I'm in the US, I don't need to gather street names for most streets; I just need tracks to align the Tiger data.

The easy thing to do is turn on my GPS logger, set it on the car dashboard, and drive around. When I get home, pick it up off the dashboard and turn it off. Easy to do, but only one problem: I am paranoid, and I don't want every public tracklog showing my driveway. Yes, it is probably silly, but there it is.

One choice is to not turn on track logging until I am a block or two away from home, and then turn it off a block or two before getting home. It works, but it can be distracting while driving. I could also edit the GPX file with a text or xml editor, but that is repetitive and boring.

The best solution is GPSBabel, which is made just for this type of thing. It has a processing filter which can include or exclude points that lie within a boundary which you define.

I'm already using GPSBabel to translate my GPS tracks from the Coto Palm GPS software into GPX format, so I figured this would be an easy addition to the process. It took more work than I expected, because of an obscure detail in the processing. GPSBabel only wants to apply the filtering to defined waypoints, and not to tracks. Fortunately, GPSBabel itself can solve this problem, too. I told it to translate the tracks into waypoints, filter, then translate back to tracks. It added waypoint names for every track point, but I could easily delete those.

The end result is a shell script looking something like this:

F=$1

NewFileName=` echo $F | sed -e 's/\.pdb$//i' | tr ' ' '_' `.gpx

#Convert trackpoints to waypoints, for exclusion to work,
# then convert back

… See full entry

I've been gathering GPS tracks for downtown and southeast Beaverton. While I have not covered anywhere near every street, I have covered enough to see that the Yahoo aerial photos and USGS Urban Area aerial photos are aligned quite well with the GPS tracks. All the rest of the streets in the area can be interpolated from the photos.

More road and Nive river plus railways

The map needs to reflect the little trick that Lincoln plays on Winter Street commuters: the first 300 yards of Winter Street, after it crosses the Waltham / Lincoln line, is one-way in the direction of leaving Waltham.

Thats me happy as I am now able to uploaded my gps tracks now that satmap have upgraded their software, so 1st one is up, Now just need to vertify the roads I have added using sat pictures.