I fixed my GPS yesterday, and finally got around to installing the mounting kit for my bike. As I’d missed my morning 5K time trial race, I thought I would finally get out on my bike and map the streets around where i live, for Open Street Map. This project is aiming to build a public-domain, copyright free map of the world. It was started by UK mapping enthusiasts and still has a lot of focus on the UK – its first conference was in Manchester last weekend, which is what got me thinking about it. I’ve been listening to the conference recordings over the last few days.
London in general has quite good coverage but there are plenty of gaps where I live, so I concentrated on my immediate local area. Execution consisted of cycling along all the streets – generally down the middle of them although swerving for cars – and photographing street signs for later annotation. My GPS recorded my position every second. Later I uploaded the GPS track to Open Street Map and then used the online Potlatch Flash map editor to add in, extend and annotate the streets. The results should appear on the main map within the next week – after then, parts of London E1 and E2 should be showing many more streets than before.
The first picture is from the editor, Potlatch. The lines in blue are my GPS tracks. The grey lines are roads I’ve added. One is selected, showing the attributes (in this case, the street name.) The satellite imagery in the background provides a useful check that the GPS tracks are accurate. The second picture is the equivalent view on the map itself – once my edits go through, this part of the map should look considerably more complete.




BUPA Great Capital Run – run by the same organisation that does the Great North Run, this new race was 10K around Hyde Park. Just one lap, although the course doubled back for quite a lot of its length, with (generally slower) runners coming the other way.
I was aiming for 40 minutes, and planned to do 4 minute Ks. The start was fast, as I expected, as I was running with people who were about my speed. After then, I eased back only slightly, and went through 5km at 20:05 – just five seconds down on my target. However I didn’t do a negative split here – I tired a lot between 6km and 7km – even the slight change of pace at the water stop took a few seconds out of me. 

I was orienteering around Reigate Priory only a week ago, and liked the look of the area, so I was happy to be back for my second 10K in four days. This one was a run around country roads, it was billed as being quite undulating, so I wasn’t expecting to beat my 42:09 PB from Sunday. However, I got around in 41:59. Not a negative split this time, but this was because all the (up)hills were in the second half – including a 70m climb over the hills just south of the priory itself – the edge of the North Downs. The hills weren’t nearly as bad I was expecting – I just slowed down my pace and took it easy. I did feel my calves at the end of the race though.
Race 10 was to have been the Bushy Park Time Trial on Saturday, but my train out to Teddington broke down on the platform. So, Plan B, a training jog around Victoria Park, was executed. Later on my housemate mentioned she was running a 3K fun run around the park the following day, and on checking the website I noticed there was a 10K too. Perfect – only 15 minutes walk from my house.