Hi, you certainly do not need a measurement on every edge but if you have a route in your network which is not covered by any detector than you are out of luck with any tool and can just guess. The dfrouter itself does some guessing, so you can simply give it a try and report your findings. There is another tool in tools/detector/flowrouter.py which works a little better with less data but is not very well documented. Just try it out and ask here if you fail, I will try to give advice.
Best regards, Michael 2013/11/10 <[email protected]>: > > Hi All, > > I've got some flow data for the M25 in UK, which reports volume data > measured 15 min interval flow data broken down into 4 different > vehicle lengths. > > I was looking at the howto > http://sumo-sim.org/userdoc/Demand/Routes_from_Observation_Points.html > to construct traffic data for SUMO based on this, as it looks like the > best approach of all the options mentioned on the site. > > But, it looks like this expects a fully observable system? I'm not > sure such a full data set is available, i.e. I have results for > between different junctions on the motorway, and possibly some > additional data which might indicate entry from junctions, but from > what I've seen, I'm not sure it covers the entire traffic flow > entering/exiting. > > What I'm wondering, is if there's an easier process to construct > simple flow along this motorway section, without going as indepth as > the howto guide? For example, we know that in that 15 minute sample, > there were X of each category that passed through that point, it feels > a little like something randomTrips could do? If I set up with the > same route, I'd just need to get the intervals right to cover 15 mins > and the observed volume? > > Ah, the other complication I have, is that the detector data, doesn't > specify lane info (there are 4 lanes). > > And finally, probably worth adding that I'm only really looking at a > 15 minute scenario runtime, so I could use a couple of the 15 min > sample points, but probably end up interpolating. > > Just wondered if anyone hA tackled similar problem, I'm guessing that > sort of data set must have been encountered before? > > Thanks! > > > ------------------------------------------------------------------------------ > November Webinars for C, C++, Fortran Developers > Accelerate application performance with scalable programming models. Explore > techniques for threading, error checking, porting, and tuning. Get the most > from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk > _______________________________________________ > sumo-user mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/sumo-user ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349351&iu=/4140/ostg.clktrk _______________________________________________ sumo-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sumo-user
