robert has commented on the following diary entries

Post When Comment
Warning: GPS tracks recorded with an iPhone can be a waste 11 months ago

Yes, many satnav systems in particular have been known to do this when collecting gpx traces. The concern is more than just that of accuracy - it's also potentially a copyright problem: are the traces now a derived work of the Apple road network? (that's a rhetorical question - I don't think anyone has the answer)

It's amazing how far sixteen lines of c++ can get you. 11 months ago

Those are some interesting idea there Alex. I suppose the difference between the approaches is like that of bottom-up change and top-down change.

I know the idea of air-quality-aware routing has been kicking around for a while - in fact I think Martin from cyclestreets would love to be able to add it to their product if he had the right data (& time to add it amongst all his other feature requests).

As for c++, well, y'know, none of us were born knowing c++. You just kind of decide to sit down one day and figure it out. The conceptual wall between programmers and non-programmers is imaginary.

Introducing OSMLY 11 months ago


Mapped Prem Nagar, Berhampur 11 months ago

Yes, I think the jacket-wearers have chosen to abandon stealth and decided that the best place to hide is in plain sight.

Mapped Prem Nagar, Berhampur 11 months ago

Mapping parts of the world no-one else wants to map, Part 1: Hanger Lane, London 11 months ago

Sounds like exactly the sort of place we should be having mapping parties then.

My wish 12 months ago

I don't know how much attention is payed to this page, but it exists and it couldn't hurt to add your request to it.

Sao Paulo city hall is using OSM! about 1 year ago

Pity all the markers seem to be floating in mid air.

Using OSRM to improve road mapping quality about 1 year ago

I'm also working on improving mapping quality using OSRM, see

Unfortunately due to infrastructure constraints the prototype is only running on the british isles at the moment, but I'm working on expanding that.

Mapping a Community Center about 1 year ago

You absolutely can tag things with dual functions, just not if they both collide using the same key (amenity=...).

One of the alternatives would be to create two objects right next to each other but that's also a bit nasty because we like to follow a principle we call,_one_OSM_element

Mapping a Community Center about 1 year ago

@curiousscholar this is a bit of a "known issue" with our tagging scheme (particularly "amenity"s) - ideally you'd be able to tag something as both a place of worship and a community centre, but of course since both features use the amenity= key, that doesn't work. There has been talk of using ; separated multiple values, e.g. amenity=place_of_worship;community_centre, but little if any software (such as renderers) interprets/supports that.

The spelling of amenity=community_centre is of course also another display of the curious britishisms that infest osm.

Probably more information than you wanted there.

punjabi songs lyrics about 1 year ago

Do you have the one about spam?

Interest in Editing about 1 year ago

@Adam Martin: Have you tried visiting ?

Online advertising | Classified ads in India | Online Classified Advertising | classified ads free about 1 year ago


Вторая пензенская картовечеринка about 1 year ago


Вторая пензенская картовечеринка about 1 year ago

Yay my stickers have spread :)

hiking... using id about 1 year ago

Don't forget to upload your traces to the "GPS Traces" section too as a record.

Adding a turn restriction in vespucci about 1 year ago

Hooray for turn restrictions!

Mapping Croydon over 1 year ago

Can't say it's not accurate though ;)

google google google over 1 year ago

I think you're all overestimating Google's competence, especially in "tracking all of us".

@K01umbus I think your Japanese internment argument is absurd.