<div dir="ltr">Marc,<div><br></div><div>It does not necessarily mean most roads were adde by one person. Several reasons:</div><div>- the map shows all "way"s, which includes all land use as well</div><div>- the map show the latest contributor, which can be different from the person who first added the way</div>
<div><br></div><div>That said, in fact a <lot> of data was put by just a few people. The user you have in mind is probably lodde1949 ,who has added a tremendous amount of information. With ITO maps ( eg <a href="http://www.itoworld.com/product/osm/map?colour=table&area=7083:4&sort=total-&show=user:48476">http://www.itoworld.com/product/osm/map?colour=table&area=7083:4&sort=total-&show=user:48476</a> ) you can see which user last touched the ways in a given area. In the area Lodde works on, it's hard to find ways he didn't last touch. </div>
<div><br></div><div>The ITO map is also pretty cool to quantify how many different people added how much info to the map. In cities, often 20-30% comes from just one person; 80% form less than 10 people. That doesn't mean so few people contributed: people who added info a long time ago are probably gone from these kinds of analysis; some data isn't counted, and the last percentage point of data is probably the most important one to make a good map great.</div>
<div><br></div><div>If you want identify single contirbutors contributions, you can also use <a href="http://www.yosmhm.neis-one.org/">http://www.yosmhm.neis-one.org</a> to visuelaize the area where they work, and <a href="http://hdyc.neis-one.org/">http://hdyc.neis-one.org</a> to quantify that work.</div>
<div><br></div><div>Regards,</div><div>joost schouppe</div><div>(I hope this mail is sent the right way; it's my first to a mailing list</div></div>