Esben Almqvist wrote:
> Hi!
> I have a short question about how the output is written. There is 
> output every 20 minutes. What is it that comes out? 20 minutes 
> averages or momentary values for that particular 30 second period? Is 
> the value at 12.20 for the period 12.00-12.20?
>

Excellent question.

The momentary value for the 20 minutes time is taken. There is no 
averaging over the 20 minutes period. I have added a paragraph in the 
ouput roadcast article that explain that:
http://documentation.wikia.com/wiki/Output_roadcast_%28METRo%29#Description
(correction and precision are welcome!).

The road condition is treated differently. See the documentation:
http://documentation.wikia.com/wiki/Road_condition_%28METRo%29#Criteria_for_determination_of_the_road_condition

For the really curious people over there, you can see how this 
subsampling is done by looking in the 
metro_postprocess_subsample_roadcast.py file in the 
"__subsample_roadcast" method:
http://svn.gna.org/viewcvs/metro/metro/trunk/src/frontend/executable_module/metro_postprocess_round_roadcast.py?rev=230&view=markup


Cheers,

Miguel

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