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RideLondon 2015 – GPS Course

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  • July 26, 2015 at 10:54 am #24499
    bikebot

    I took a look around the web earlier this week, to find a good GPS course for this year’s RideLondon and surprisingly couldn’t find one. Lots of files are out there, but none seem to have the updates and tweaks to this years route.

    So, I made one instead, if anyone wants it these are the public links. I use BikeRouteToaster, and I’ve also mirrored it in RideWithGPS.

    http://bikeroutetoaster.com/BRTWebUI/Course/819114
    http://ridewithgps.com/routes/9470517

    I used the official route from – http://www.prudentialridelondon.co.uk/Info_Hub/Routes.htm, and directly converted the KML file to GPX. It was then cleaned up to correct various technical problems, and I’ve added a few annotations and markers. The locations of the various water stations and hubs are approximate, but should be slightly before their location on the course.

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  • July 30, 2015 at 6:37 pm #855133
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    crikey

    @bikebot, it’s not a ride I
    @bikebot, it’s not a ride I am likely to be doing, but it is interesting to see how plotaroute can render it.

    July 30, 2015 at 6:34 pm #855131
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    hammond83

    Google ride 100 garmin
    Google ride 100 garmin connect then log in and upload to garmin. It was someone else’s route but worked for me.

    July 29, 2015 at 8:09 pm #855129
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    bikebot

    crikey wrote:Try it with

    crikey wrote:
    Try it with plotaroute.com

    It wouldn’t import the tcx files from BRT, only the gpx. It’s not a site I use, but if it’s of any use to you or you can improve it, it’s shared here.

    http://www.plotaroute.com/route/98588

    July 29, 2015 at 7:36 pm #855127
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    crikey

    Try it with plotaroute.com
    Try it with plotaroute.com

    July 29, 2015 at 7:32 pm #855125
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    bikebot

    I messed around with the
    I messed around with the route a little with mixed results. As I mentioned at the top, I use BikeRouteToaster and in that I managed to improve the match with recorded data by adding more data points on the hills, and turning down the smoothing.

    However, it’s far from a good match, which I think is down to the resolution of the underlying elevation data, and that the roads will be slightly different to the surrounding terrain. Worse, I think RideWithGPS must be applying its own filter on import, as the gradient profile looks noticeably smoother when I mirror it over to there.

    Same link on BRT for the revised version, new link for RideWithGPS.

    http://bikeroutetoaster.com/BRTWebUI/Course/819114
    http://ridewithgps.com/routes/9534042

    I suspect the only way to get a really good accurate gradient match, it to manually patch those segments with recordings taken from previous years. I’m a bit of a anorak, but I doubt I’ll have the time for that sort of fiddling.

    July 28, 2015 at 4:51 pm #855123
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    bikebot

    AWP wrote:I’m not sure that

    AWP wrote:
    I’m not sure that some of the gradient data is correct. My previous rides up that particular Leith Hill section push 9-10% both on Strava and RideWithGPS.

    I haven’t checked any other hills on your route.

    Looks like there’s a combination of not enough data points, and some smoothing going on. It may also be that the underlying elevation data (the DEM map) doesn’t have enough resolution. Just reading this as a reference for Leith Hill – http://sportivecyclist.com/leith-hill-cycling-gradient-elevation/

    Average gradient is 6.5%, but there are some short sections that go up to 12%. I’ll try some tweaking later to see if I can get those to show up. It’s worth having a try just to understand the limits of these tools.

    July 28, 2015 at 1:45 pm #855121
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    AWP

    I’m not sure that some of the
    I’m not sure that some of the gradient data is correct. My previous rides up that particular Leith Hill section push 9-10% both on Strava and RideWithGPS.

    I haven’t checked any other hills on your route.

    July 26, 2015 at 10:27 pm #855119
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    Turbohampster

    Well I for one thank you
    Well I for one thank you Bikebot as others have said it comes in handy for elev action profile view, among other things! =D>

    July 26, 2015 at 5:26 pm #855117
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    bikebot

    foot_loose wrote:I shall take

    foot_loose wrote:
    I shall take my Garmin to record the ride but not to navigate with.

    I’d be surprised if anyone did that, the course data is for the elevation view.

    July 26, 2015 at 3:11 pm #855115
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    foot_loose

    I shall take my Garmin to
    I shall take my Garmin to record the ride but not to navigate with.

    July 26, 2015 at 2:29 pm #855113
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    bikebot

    Obviously not for the
    Obviously not for the directions! Although I would bet they’ve had someone go off course before… never underestimate peoples ability to screw up.

    I like to have a course file for the gradient profile, the rest is just for the hell of it. Some of us like our gadgets, and there’s nowt wrong with that.

    July 26, 2015 at 2:10 pm #855111
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    crikey

    As above; it’s a closed route
    As above; it’s a closed route and there are 25’000 other people on it. Leave the Garmin at home.

    July 26, 2015 at 2:04 pm #855109
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    foot_loose

    I am not sure why this is
    I am not sure why this is necessary. I don’t think there is much chance of getting lost! The feed stations will be obvious from the large queues of cyclists waiting to grab something.

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