There is already a service in the UK for reporting these defects to the local council, called FixMyStreet. There is even have an iPhone app for reporting problems while on the ground. However I felt that not enough people knew about FixMyStreet, and even fewer were reporting problems. So I decided to come up with a way to automate these reports to the local councils even further.

I believed that these uneven roads could be crowd sourced through recording a GPS track, and a storage of seismograph by using the accelerometer in the iPhone or iPod Touch. These tracks are merged together and tied to the road network automagically, now that there are enough tracks in the system, analysis is running constantly to find places where many people regularly have a high vibration, when flying over a speed hump, or just about halted as though you have hit the kerb straight on by finding a conspicuous pot hole in the middle of a bus lane, about one bus length away from a sunken drain.

Some of the crowd sourcing community have taken this a step further and provide a video stream of the whole cycle ride, which again is synced up with the GPS trace, and used as evidence of poor quality road surface. The whole sync process is done automagically after you upload. It is even more accurate if you up load a photo of the time on the GPS and the seismometer.

OpenStreetMap is now using this data to enter all the traffic calming, in a few months time the Crap-O-Surface Detector service will start automatically suggesting places where there are speed humps, and giving the appropriate, err smoothness tag* for every road.

CycleStreets have found the data to be so good, that they have decided to postpone implementing traffic lights, specific routes, fixing the OSM to Cycle Streets types, and of course hill avoidance, in favour of using the data from the Crap-O-Surface Detector service. Don’t worry, all the other items are still on the todo list.

So I’m please to announce that the Crap-O-Surface Detector is now out of the private pre-Alpha, and today entering the Beta stage in the software cycle, please head over to Crap-O-SurfaceDetector.com to see how you can participate, while watching more roadworks in the places that really, really need them. Once the roadworks are gone, you should (if the council contractor has been doing their job properly) see a marked improvement in the road surface.

• preparing the slides more, particularly the server side ones for this audience;
• giving the 2 minute introduction to OpenStreetMap, as there were people who didn’t know the basics about OSM in the crowd;
• also doing it as a lab session, rather than rushed example demonstration of the editing before being thrown out of the lecture theatre.

I have made my slides from the talk available below.

http://docs.google.com/Presentation?id=ajc2v9mk3cvb_4cf9wsthd

The route I took was heading out fairly direct to Faversham, via Bromley, Swanley, unmapped Cobham, Rchester, Rainham, and Sittingbourne. After Faversham I headed to the coast all the way round to Ramsgate, where I hit the A256, and then the A2 to race down the road to Dover to get the last direct train back to Bromley South.

I hadn’t prepared quite enough with my GPS tracking. For those who don’t know I use a private beta of TrackMyJourney on my Sony Ericsson K850i with a bluetooth GPS for most of my location logging and mapping. I know that my main 5Hz bluetooth GPS lasts only about 8 hours, so I got my older, less reliable on cities, GPS partially charged, but not enough to last until the phone ran out of power. After I ran out of power I was using a fast direct route, so it was easy to get the route’s distance using CloudMade’s routing. I did have a GT-11 GPS as a backup, however the 16MB card is too small for my extravagant cycle journeys, though the battery did last for the whole journey. Ah well, couple of lessons learnt.

It’s been great to be able to have live re-routing over the web,  constantly updating my ETA, and the ability download map tiles live, thus able to have the cycle map wherever I am within mobile phone signal range.

I did find a part of the NCN1 to the east of Sittingbourne, where the route took you into a pile of trash at the side of a traveller camp, with no further signage.

I really enjoyed cycling along the coast, I found it quite rare to be able to go for so far that close to the coast, because usually you have private properties next to the coast for much more of the coastline. There was one place where I saw a sign telling cyclists to slow down and give way, where you would normally just get the irritating and unnecessary ”cyclists dismount” sign. I really should have taken a photo of it, but then would I have had to go via London Bridge?

In the future I’ll hopefully get around to cycling from Margate to Folkstone at a more leisurely pace to be able to take in the scenery.

Screenshot of the SOTM2009 Countdown Dashboard Widget

I have updated the Dashboard widget I created last year for this years conference in Amsterdam, The Netherlands.

I’ve added a donate button on the back that takes you to http://donate.openstreetmap.org/.

Dashboard Widget 163KB zip

Project Source Code 880KB zip

After uploading it to Flickr, I check that I had geocoded it right, by looking at the map on Yahoo. I got very confused. It seems that Flickr need to start using OpenStreetMap data for London. Yahoo don’t that the new Channel Tunnel Rail link and some of the new roads around Ebbsfleet International, though they do have the location of Ebbsfleet International. Compare Yahoo with OpenStreetMap.

UPDATE: Looking further it seems that Flickr are using older map tiles compared to Yahoo.com, but appear to be the same tiles as used in Yahoo UK. 

END UPDATE

On the way I was testing out some routing using osm data, and found a few data bugs. One very important one being a primary road that goes through a tunnel, which doesn’t allow cyclist, pedestrians, nor horse drawn carriages, hence routing cyclists through it shouldn’t be done.

On the 2nd day of the year, I took the train down to Caterham, which is just inside the M25, and then cycled back up mostly using the NCN21. On passing through New Addington, I got a little mapping done on the way, mostly new roads that are completely missing from OSM, there is a lot of mapping required down there. Anyone up for a mapping party?

While I was there I got the village Singhofen mapped, all on foot, and often freezing temperatures. At least it was dry, and I had my big duvet jacket, so didn’t notice the cold as much. There are plenty of quiet roads that lead off to the neighbouring villages, and some of the finer details that still need to be completed. Hopefully next time I go, I’ll have a bike, which will make it rather a lot faster to do the surveying.

Some people think that Germany is complete, in fact most of the small towns and villages have been forgotten about. Many of them are missing any roads going to them. The Germans are organised enough to have a list of places that need mapping, with an accompanied slippy map.

To get there I used the Eurostar from St. Pancras to Brussels, there I changed to Thalys to Köln, where my cousin and her boyfriend picked me up. While I was in Brussels, I had an hour to kill so went out for a quick walk and found some unnamed streets. I also found this cart that had fallen on the  tracks in the station:

I have a 44MB NMEA (27MB GPX) track @ 5Hz of my journey back, with the exception of when I was on the DeutcheBahn train from Koblenz to Köln, which seems to be like the UK’s Virgin trains in their expertise in blocking GPS signals.

One interesting thing I found outside Köln train station was that there was a lot of bicycles standing there with a lock between the back wheel and the frame, and not locked to anything fixed to the ground.

Happy new year to all.

Does anyone have ideas for central London pubs that we could go to at the start of next year? If so, please add your local knowledge to the wiki page.

OpenStreetMap has a stand there, so drop by and have a chat if your in London today, tomorrow or Saturday 25th October 2008. More info on the osm wiki.

Here’s some photos from setting up last night:

I wished I could have stayed longer at the pub after the mapping, as there was some interesting discussion about the state of the OpenStreetMap project.

There is an excellent animation of where the mappers were.

After Buckingham Palace the ride managed split in two, with both halves meeting up later. At one point we did bump into a bunch of organised roller skaters.

As the sun is setting around the time the ride starts off, so it becomes more difficult to get good photos, particularly with most people wearing reflective clothing.

Overall it turned out to be a good night without any major incident.