User:LA2/Diary for Q3 2006

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LA2's OpenStreetMap Diary for the 3rd Quarter of 2006

September 29, 2006: Beginning of the mapping weekend in Växjö, which see.

September 28, 2006: I've drawn Ulricehamn and riksväg 40 a little beyond Borås from tracks I collected on my way home from the Göteborg Book Fair last Saturday. There are tracks for some more motorway exits on riksväg 40 to be drawn between Borås and Göteborg. Next year, more of rv40 will be motorway. I saw the construction of a valley bridge just east of Borås.

One thing that has surprised me about my new Mio P550 device with an integrated GPS receiver based on the new SiRFstar III chip is that its altitude reading seems to vary a lot. Today I decided to calibrate it against my older Garmin Foretrex 201. I took both receivers with me to a park where the sky is open and the surrounding buildings are low, while spending a little more than an hour drinking coffee and reading magazines. The diagram below shows the altitude as measured by the two receivers. I believe the true altitude of this park is 69 metres above sealevel. When you see the diagram, it's hard to believe I was sitting still all the time. At some points, such as A and E, the trends of the two receivers seem to be opposites: one has a maximum while the other has a minimum. While at other times, such as B and D, the trends agree even if the exact measurements almost never do. If you look closer, you see that the blue line (Mio) fluctuates more than the red one (Garmin) before point C, where the roles change. This I can explain. Before C, both receivers were laying flat on a table. For the Garmin this means its patch antenna was facing the sky, which is an optimal position, but the Mio has its rather small antenna pointing towards the edge of the unit. At point C I changed this so both units were standing up, leaning against some magazines. This upright position seems optimal for the Mio but worsened the reception for the Garmin. As with all radio communication, it turns out the position of the antenna is the key to good signals. Conclusion: I think I should get an external antenna for my car. The Mio has a connector for this.

Here is a discussion thread about the internal antenna of the P550 and its cousin P350. That thread started when some owners found their P550 had surprisingly poor GPS reception (I don't have that problem). This later turned out to be a manufacturing problem with 9% of the early units, and Mio has recalled these. But during the search, these owners provided photos and details about their experience. It's an interesting read.

GPSdash seems to be an interesting program.

20060928-altitude.png

September 27, 2006: Useful programs for the Mio P550 (running Windows Mobile 5): WiFiFoFum wardriving, and PocketPuTTY SSH. -- The tile server, and thus OpenStreetMap's "slippy map", is back in operation. However, it is neither fast nor perfect. Here's the very first example I saw today. As you can see, streets are missing from the tile in the center of Linköping.

20060927-missingtile.png

September 25, 2006: Not only is OSM's slippy map completely broken since the beginning of this month, now the server hardware is also standing still after a power failure. I've now changed all European map links on susning.nu to point to london.freemap.in instead. See for example Amsterdam, Berlin, Bristol, Köpenhamn, London, Frankfurt, Oslo, Paris, Stockholm.

September 22, 2006: I've got a new toy, a Mio P550, also called Digiwalker, and have started to play with it. This is a PDA that runs Windows Mobile 5.0 and has built in WLAN (IEEE 802.11b+g), Bluetooth, and GPS (the new SiRFstar III chip). I recommended Eriso to buy one this spring, and he seemed satisfied with it, so now I bought one for myself. This unit has everything except a phone. That's fine because I'm happy with my old and simple GSM phone. It is not the most advanced PDA on the market. For example, some models now have VGA (640x480) screens, but the Mio P550 only has 320x240. The included maps cover Europe (on CDROM, can be transferred to SD-card in whole or parts) and Scandinavia (on an included SD-card). The maps appear to be from the same source as used by Google, which contain the mishyphenation "Gott-Fridsberg".

Following the recommendation on the Making Tracks with Homebrew-ware page, I installed the freeware VisualGPSce v1.2 for collecting NMEA tracks and it works fine. However, after I also installed and used the included software Mio Map 2.0, VisualGPSce no longer shows satellite signal strengths or positions. The new NMEA logs don't contain any GPGSV (satellites in view) commands. Mio Map apparently tells the SiRF chip not to send this information, and VisualGPSce doesn't know how to reactivate them. This discussion thread talks about a WinCEmonitor utility that can remedy this. However, a better solution is to upgrade from VisualGPSce (freeware) to BeeLineGPS v1.77 ($30, free 30 day trial). This program knows how to instruct the SiRF chip to report GPGSV. BeeLineGPS also supports Geocaching and shows a map of the current track.

On the Mio P550, COM2 is the hardware GPS port and the system contains a setting for sharing this between applications over COM4. This means Mio Map street navigation can be used at the same time with VisualGPSce. For this to work, Start menu -> Settings -> System -> GPS -> Access must be set to "Manage GPS automatically". Flip back to the "Programs" tab and make sure the "GPS program port" is set to COM4. Then in VisualGPSce -> Connect -> Serial Port, set Port to COM4. BeeLineGPS automatically finds COM4. Make sure you get a fix and start logging. This means Mio P550 owners will not have to resort to the trick described by user:Blackadder, who bought and installed the separate program GPSGate for GPS port sharing on his Acer n35.

What do I need right now:

  • A good solution for syncing this PDA with Linux
  • A good solution to transfer my old Palm Pilot address book and calendar to this Windows PDA
  • A cover that protects the buttons and screen of the PDA
  • A screen protector so the glass doesn't wear out when I use "block recognition" (Windows' equivalent to Palm's Graffiti)
  • A PDA application that supports OpenStreetMap

September 19, 2006: On March 3, 2006, I wrote about the Swedish national road database (NVDB). Today I learned that the EuroRoadS initiative aims to establish something similar on a pan-European level. The Swedish road administration (vägverket), national land survey (lantmäteriet) and the British Ordnance Survey are already partners in this development.

EuroRoadS, the pan-European Road Data Solution, was a 30 month prestudy and development project (March 2004 - August 2006). Its 3.7 million euro budget was 50% funded by the EU eContents program and the other half by its founding partners, which include the British Ordnance Survey, the Swedish national land survey and some similar organizations. Its aims have been "to build a platform for a European road data solution through a specification framework consisting of a road data structure, description of data content, data exchange mechanisms and interoperability specifications. The framework will be built on identified user requirements and tested through a prototype" (italics as quoted from their brochure). A closing EuroRoadS workshop was held on June 27, 2006 in Brussels. A special session on EuroRoadS will be held at the ITS World Congress in London on October 9, and a meeting on the proposed memorandum of understanding will be held in Malmö, Sweden, on November 30, 2006.

The problem with identifying user requirements is to know who the (future) users are. Let me guess that the open source mapping community is not among the identified user base. There's a lot of talk about "stakeholders" and little mention about how to prepare access to outsiders and upstarts.

D6.1 page 6: Different content providers ideally shall be viewed as keepers of data of a certain domain or possibly also competing providers of data for the same domain.

September 4, 2006: From the changes made on Thursday August 31 until today Monday, tile rendering was very fast and only gave thin white lines, no fat colored lines for primary roads and motorways. Since Monday the colors are back and the rendering is slower again, albeit maybe not quite as slow as before Thursday. I'm also occasionally seeing all-white tiles and tiles with no streets rendered. So the changes on Monday are definitely for the worse. It seems load average on the db server is climbing high again.

September 3, 2006: On the Orkneys, roads were apparently auto-generated from multiple tracklogs. There are also plenty of tracks and roads on Iceland, thanks to FredB.

September 2, 2006: Here's how the nodes in the planet.osm files for 2006 are distributed over UTM zones.

UTM zones in Kamchatka and Alaska
Zone Aug 27 Aug 18 Aug 14 Aug 8 Jul 3 May 1 Apr 2
Alaska
59U 0 0 0 526 526 526 0
60U 0 0 0 656 656 656 0
1U 0 0 0 1689 0 0 0
1W 469 469 0 0 0 0 0
2U 0 0 0 315 0 0 0
2V 0 424 424 1530 0 0 0
2W 631 829 198 198 0 0 0
3U 0 0 0 3307 0 0 0
3V 0 3294 6623 6623 0 0 0
3W 0 11712 11712 11712 0 0 0
4U 0 273 273 1026 0 0 0
4V 4687 10566 26390 26614 0 0 0
4W 1845 12429 12429 12429 0 0 0
5V 2231 66760 68434 68439 0 0 0
5W 6592 13964 14048 14048 0 0 0
6V 17 67029 101563 117482 0 0 0
6W 8653 21865 64836 64836 0 0 0
7V 0 10491 10491 10491 0 0 0
7W 674 3320 3320 3320 0 0 0
8U 0 4765 4765 4765 0 0 0
8V 0 14559 26626 26626 0 0 0
9U 0 10993 10993 10993 0 0 0
9V 0 265 265 265 0 0 0
North America
California 10S 706165 706162 706162 706162 0 0 198
Oregon 10T 1917669 1917669 1917669 1917669 0 0 16
British Columbia 10U 12168 12168 12168 12168 0 0 6
11S 4145 4109 3945 3945 0 0 2278
11T 17297 16440 15783 13890 0 0 38
11U 11 11 11 11 0 0 11
12S 309 309 309 0 0 0 0
12T 60053 60053 60018 60018 0 0 0
13T 35938 35938 35938 35938 0 0 0
13U 81527 81527 81527 81527 0 0 0
14Q 1 1 1 1 0 0 0
14R 191183 191183 191183 191183 0 0 0
14S 156954 156954 156954 156954 0 0 0
14T 87983 87983 87983 87983 0 0 0
15R 578096 578096 578096 578096 0 0 0
15S 153557 153559 153559 153559 0 0 314
15T 133277 133277 133277 133277 0 0 205
16R 2249364 2249364 2249364 2245771 0 0 0
16S 4929649 4797014 4505795 3794197 0 0 528
16T 353984 353984 353984 353984 0 0 1864
17R 383 383 383 383 0 0 363
17S 245199 245199 165227 153485 0 0 1
17T 2647 2647 2647 2647 0 0 8
18S 230649 230649 230649 230649 0 0 4466
18T 19577 20505 20658 31268 0 0 12036
19T 37 102 102 102 0 0 1245
20T 929 929 759 478 0 0 0
UTM zones in South America
UTM zones in Africa
UTM zones in Europe
Zone Aug 27 Aug 18 Aug 14 Aug 8 Jul 3 May 1 Apr 2
South America
Peru 18L 1 1 0 0 0 0 0
Chile 19H 1788 247 237 236 0 0 236
Dominican Republic 19Q 95 95 95 95 0 0 0
20K 29 29 29 29 0 0 29
Argentina 21H 6 6 6 6 0 0 6
Argentina 21J 1 1 1 1 0 0 1
Argentina 22J 2 2 2 2 0 0 2
Brazil 23K 559 559 559 559 0 0 559
Africa
29N 0 0 0 0 0 1 1
30N 0 0 0 0 0 2 2
31N 0 0 0 0 0 2 2
Europe
Iceland 27V 168 140 89 0 0 0 0
Iceland 27W 400 244 110 0 0 0 0
Iceland 28V 411 411 0 0 0 0 0
Iceland 28W 1816 1622 175 0 0 0 0
Portugal 29S 186 187 135 135 3 3 0
Ireland 29U 22187 22022 21553 18272 12274 7164 6516
Scotland, Faroes 29V 430 430 236 236 54 54 7
Spain 30S 7397 682 682 682 220 220 219
Spain 30T 6391 6347 6347 6347 5558 4515 2936
England 30U 441775 387437 355092 338464 266730 186973 152905
Scotland 30V 21935 21909 17579 17557 8839 8285 6034
31S 6 6 6 6 6 6 4
France 31T 84979 78703 76064 75184 48281 29478 19393
London, Paris, Antwerp 31U 86314 69982 68230 64527 52598 35517 33301
32S 2 2 2 2 2 0 0
Italy 32T 68717 65560 63943 63965 52398 20202 13934
Denmark, Germany 32U 161519 159598 159051 156743 133116 102661 96332
Denmark, Norway 32V 51525 51216 50774 49214 29543 25114 22363
Malta 33S 269 269 269 269 269 269 266
Austria, Italy 33T 12927 8629 7916 7540 6528 2954 2430
Denmark, Poland, Czech 33U 63214 58430 57950 53996 45388 27135 19060
Denmark, Sweden 33V 118307 116677 116271 113129 101903 70882 68941
Sweden 33W 4918 4918 4918 4918 4918 4651 4382
Greece 34S 763 763 763 763 763 763 628
34T 921 921 905 880 868 44 44
Poland 34U 451 420 309 288 217 41 1
Stockholm 34V 10978 10973 10973 10973 8519 5688 5098
34W 2209 2209 2209 2209 2153 1776 1362
35S 6 6 6 6 6 0 0
35T 1831 1769 1224 1224 1156 1156 533
Estonia 35V 17922 17922 17902 17900 11412 9948 8515
35W 4633 4633 4633 4633 3871 3316 3316
Cyprus 36S 2769 2769 2769 1130 1123 530 35
Black Sea 36T 68 68 68 68 0 0 0
36U 561 561 561 561 67 67 67
Petersburg 36V 20597 20597 20597 20597 16537 15209 15090
Murmansk 36W 10167 10167 10167 10167 9354 7423 7423
37U 2 2 2 2 2 2 0
37V 6 6 6 6 6 6 6
38S 29 29 29 29 29 29 29
UTM zones in south-west Asia
Zone Aug 27 Aug 18 Aug 14 Aug 8 Jul 3 May 1 Apr 2
Middle East, Asia
Israel 36R 156 156 156 156 156 156 0
Iraq 39S 2 2 2 2 2 2 2
India 43P 16 16 16 16 0 0 0
India 44R 9 9 9 9 9 9 0
India 45Q 1 0 0 0 0 0 0
Thailand 47N 1 1 1 1 1 1 1
China 49Q 3 3 3 3 3 3 3
China 50Q 309 309 309 309 309 309 309
China 50S 1 1 1 1 1 1 1
Philippines 51P 1072 1072 1072 1072 0 0 0
Taiwan 51Q 1318 1318 1318 1318 773 773 0
China 51R 2 4 4 4 4 4 2
China 53U 6 6 6 6 6 0 0
Australia, New Zealand
W. Australia 50H 1 1 1 1 1 0 0
S. Australia 54H 4 4 4 4 4 4 4
S. Australia 55H 1840 1560 1543 1236 668 565 128
SE. Australia 56H 19718 7779 7649 6824 2884 464 91
E. Australia 56J 17610 982 982 982 16 16 16
New Zealand 59G 64 64 64 64 64 0 0
New Zealand 60G 22 22 22 22 22 22 22
New Zealand 60H 2542 2542 2542 2542 2542 2429 337
South Pacific 60N 1 1 1 1 1 1 1


September 1, 2006: The twenty most active map editors in August 2006 (where Ben has been importing TIGER data for the U.S.) were:

Edits User
1697197 Tiger Import
498318 (anonymous)
116273 (anonymous)
79571 Joerg Ostertag
67285 MichaelCollinson
37380 Dutch
17929 Alban
14419 Gabriel Ebner
14133 80n
13214 Ben
13030 jrglasgow
11523 OJW
11215 blackadder
8374 dmgroom
8253 LjL
6982 FrankM
6477 tgomas
6104 Dean Earley
5757 wollschaf
5375 TM
4698 Chris Morley
4578 LA2
4516 Nick Hill


August 31, 2006: On mid day, Steve installs new code with improved SQL for the tile rendering. Database load goes down, performance goes up, and everybody is happy.

August 27, 2006: In your face. Below is a screenshot from OpenStreetMap's "slippy map" trying to show Uddevalla, Sweden. Streets are missing from several tiles in the city center and to the left, two tiles are completely white instead of showing the background satellite image. Imagine showing this map to locals of the city and then explain why you are spending time trying to create such free maps.

Broken-Uddevalla.png

August 26, 2006: While I'm at it, let's plan the same thing for Västerås two weeks later, even though this is Friday 13th (bad luck day?) to Sunday 15th of October. See Västerås 2006-10-14.

August 24, 2006: On the talk mailing list, I mention the possibility of a mapping weekend in Växjö. The rest is at Växjö 2006-09-30.

August 18, 2006: One week ago, Mehdi Sharifzadeh from the University of Southern California gave a Google Tech Talk presentation titled Spatial Query Processing Utilizing Voronoi Diagrams, now available in video. Read more on Wikipedia about Voronoi diagrams and Georgy Voronoy.

August 17, 2006: Bug 260 (see July 26) has now been fixed, so it is now possible to mark all your tracks as public. Please do so!

August 12, 2006: The OpenStreetMap 2nd Anniversary Birthday party is held in London. We users in Östergötland send a poster with our greetings.

August 11, 2006: The programs gpx2shp and shp2gpx are free software (GPL2, available from the Japanese SourceForge written in C) that converts between the file formats GPX (website) and ESRI Shapefile (SHP, see Wikipedia). Three hours of detailed tracklog (one sample every 2 seconds, including elevation, fix, sat, hdop, vdop, pdop) containing a total of 5182 samples was 1380 kbytes in GPX format, 129 kbytes after gzip compression, but only 88 kbytes in the binary SHP format.

August 10, 2006: On the talk mailing list, I report progress at Wikipedia.

August 9, 2006: After having installed Ubuntu 6.06 and kubuntu on my new laptop, I look around for GPS and mapping software. I try out Fritz Ganter's gpsdrive (I've been lurking on the mailing list for quite some time) and learn about the capabilities of gpsd and its clients xgps, xgpsspeed and cgps. I find GMT, the Generic Mapping Tools (see also Wikipedia) developed by Pål Wessel at Columbia University since 1987 and later at the University of Hawaii, now at version 4 from 2004. The Debian/Ubuntu packaging (apparently by Torsten Landschoff on 29 Sep 1999) seems a bit odd, with different packages for software, man pages, documentation, and tutorial. I install all, but can't find the actual software. The documentation silently assumes everybody runs csh. Gpsman (GPS Manager, version 6.2.1) is a tracklog viewer with some nice features, but with a weird user interface for panning and zooming. It doesn't seem to scale well when many tracks are loaded, so apparently uses some naive data structures. Every 10th sample is numbered in the view, even when zoomed out.

August 2, 2006: I draw the remaining streets in Trollhättan and on the west side of Göta Älv to Lilla Edet. Eriso has been around lake Vänern and has drawn riksväg 44 (Götene-Lidköping-Vänersborg). We still need to wait for the new rv 44 Vänersborg-Uddevalla-E6 (and "Trestad Center") to be built and then travelled in all directions. However, there are a different kind of problem in Uddevalla.

August 1, 2006: Looking around the Romanian Wikipedia, the page Autostrăzi şi drumuri naţionale (motorways and national roads) is the key. It's also translated to English. - The ten most active map editors in July 2006 (where Ben has been importing TIGER data for the U.S.) were:

Edits User
2416644 ben_tiger
32307 LA2
28879 Joerg Ostertag
24494 Ben
18160 FrankM
17890 Michael Eric Menk
14873 Matthew Newton
14417 Gabriel Ebner
14173 80n
13811 comsomol
11155 tgomas

July 30, 2006: I draw Gistad, Björsäter, road to Söderköping, Södra Finnö, Valdemarsvik, Gryt, Sankt Anna, Yxnö.

July 29, 2006: With JLS we are now 5 users in Östergötland, not bad for a province with a total population of 412,000 or one contributor for every 82,400 people. (With the same level of attendance, Sweden would have 109 contributors and the U.K. 733.) JLS has been contributing Ringarum, Valdemarsvik, Gryt in the south-east of our province. I have some new tracks from Gistad and S:t Anna to draw.

July 27, 2006: Thursday afternoon the tile server is suddenly back in operation. Hooray! I draw more roads in Estonia and streets in Tallinn. We now have a stub article on the Estonian Wikipedia about OpenStreetMap.

July 26, 2006: The tile server is down and the tracklog upload queue is hanging (new files are "PENDING") after a power outage (thunderstorm) on Sunday July 23. Steve wrote yesterday that he could fix it sometime today Wednesday, but it's still not up in the evening (17:43 UTC). Now Nick Hill wrote he might fix it on Friday morning (July 28). I have 88 uploaded tracklog files, which I can browse in a listing that shows 20 per page. All are older than last week, so none of mine are pending. Only the more recent once are marked "public", but I'd like to make all of them public. However, when I go to page 3 (item 41-60 of 88), mark these 20 as public, and press "Update", all the others are marked blank (i.e. private). If contributors are unable to mark all of their old tracklogs as public, it means we are publishing far fewer tracklogs than the contributors are prepared to share. This is now ticket 260 in the trac system.

July 23, 2006: I draw roads for some new tracks between Pskov, Ostrov, and Tartu. There are more roads to draw from Tartu going north (to Narva?), north-west (to Tallinn?) and south-west (to Riga?). I create WikiProject Estonia.

July 21, 2006: I draw Trosa, Studsvik, Nävekvarn, Kolmården. I create a page for RU:ВикиПроект Россия. On the Landsat satellite images (just how old are they?) all Russian cities look so compact and neat, no suburban sprawl, no big malls and shopping centers with huge parking lots along the edges. Continue east of St Petersburg, east of Novgorod, north of here, south/east of here, and south and north of Smolensk.

July 19, 2006: I begin to draw Norrtälje and surroundings. Somebody has drawn länsväg 283 from rv 76 Söderby-Karl and north. Every sample has a node, but the line segments only use a few nodes. Every line segment has a way of its own, marked as secondary and no name.

July 16, 2006: Wiki-träff (meetup) and grillfest in Stockholm, Reimers Holme. More information on the Swedish Wikipedia. I told those present about OpenStreetMap, showed my 50 x 70 cm map of Europe, and guided a walk around the island. But I was unable to get on the Internet to demostrate the OSM website. So it wasn't really a successful anniversary of last year's Limehouse event. The track of the island walk has now (July 17) been uploaded.

July 13, 2006: I draw the missing parts of E6 from Kirkenes to 69.77 degrees, redraw parts, and apply "ways".

  • user:sxpert : yeah... I hit a hare with my car last year before making it to NordKapp, which rendered the vehicle unuseable ;(

July 11, 2006: I have now drawn E18 in Norway from Arendal to Sandefjord. -- Trying to dig around Wikipedia for people interested in roads, I find this in Russia: Federal motorways in Russia, cat:roads in Russia, cat:streets in Saint Petersburg, cat:streets in Moscow. There is now also a Russian Wikipedia translation of the article on OpenStreetMap. After today's IRC meeting a user "skver" from Slovakia turns up with some ideas about mapping based on model airplane photos. Later, Skver submits a Slovak translation of the Wikipedia article OpenStreetMap.

July 10, 2006: The wiki image upload function is broken again. Is the /tmp full again?

July 9, 2006: E6 in Norway is now drawn all the way from Trondheim down to 62.42 N where the traces suddenly end. Who will drive north of Trondheim or south of Engan/Dovrefjell? We also need E39 from Trondheim. There are more tracks to draw near Arendal. Along E18 north of Arendal there is an odd trace with one sample per 100 metres, running alongside the road, 15-20 metres to its east (further north to its west), almost like a second carriageway. But E18 is so curvy here that I strongly doubt this is a dual-carriageway motorway. So what is this? A bike path running in parallel to the road? Unfortunately, OSM doesn't offer any method for me to find out who added this trace or to contact that user. Another really weird trace, where this lack is just as unfortunate, runs just south of the northern-most portion of Kehä III (ring road 3) around Helsinki.

http://aronsson.se/img/osm-ghosttrack.png
Ghost track along E18 in Norway.


July 8, 2006: E6 in Norway drawn from Oppdal to 62.97 N. I translate the English Wikipedia article "OpenStreetMap" to the Swedish Wikipedia. In trying to find potential contributors in Finland and Poland, I stumble upon the Wikimedia Commons category:Road maps of Poland and the Wikiproject Roads and motorways on the Polish Wikipedia. The user Malarz seems to be the driving force behind this.

July 6, 2006: Inspired by my PDF map of northern Europe, I start to edit roads in Norway and Finland. I also start WikiProject Finland and introduce the Highway section in WikiProject Norway, copying the pattern from WikiProject Sweden.

July 4, 2006: While OSM's database schema is being upgraded, I'm playing around with the new planet.osm dump and my old hack to print OpenStreetMap with Gnuplot. Using proj to fix a projection that works for Sweden, I make a map of northern Europe, neur-black.pdf, neur-color.pdf (red), neur-a2-black.pdf, neur-a2-color.pdf (blue). The supersized A2 versions are 1.3 MB, the smaller A4 versions are 569 KB. Hope the attribution is OK.

http://aronsson.se/img/osm-200607-neur-thumb.png

July 3, 2006: We have been supplied with a new planet.osm dump, the 3rd ever. This is great news. The map of Sweden has made great progress in the two months since the last dump. I tried to upload to this wiki a large PNG map of Scandinavia based on the dump, but this failed somehow. You can view the full resolution map but the rescaled image page seems to be broken. And after this, no image upload seems to work for me. Every image I try to upload, the Mediawiki software says "the file seems to be empty".

July 1, 2006: The ten most active map editors in June 2006 (where Ben has been importing TIGER data for the U.S.) were:

Edits User
2033468 ben_tiger
26439 LA2
18352 Jörg Ostertag
7286 80n
6306 ben_robbins
6037 johds
5119 c.morley
4020 alban.noir
3359 john.dally
3311 f_mohr
3179 rolymo