Re: [sumo-user] SpeedFactor question

[Jakob Erdmann]

For vehicles, the factor is applied to the speed limit of edges/lanes
whereas for pedestrians it is applied to the maxSpeed of their type. (see
http://sumo.dlr.de/wiki/Definition_of_Vehicles,_Vehicle_Types,_and_Routes#Additional_remarks_on_speed_distributions
)

2018-08-23 12:28 GMT+02:00 Jose Monreal Bailey :

> Thanks for the clarification Jakob.
> And those are factors from the speed defined for the lane, pavement, or is
> it taken from the maxSpeed defined by the vehicle type?
> I want to define a speed factor for my pedestrians.
>
> Best regards,
> José
>
> On Thu, 23 Aug 2018 at 11:24, Jakob Erdmann  wrote:
>
>> the 'c' in normc stans for 'normal distribution with cut-off'. The
>> parameters 0.2 and 2 are the cut-off parameters and this means the sampled
>> speedFactor values will allways be in the range [0.2, 2].
>>
>> Tne range of 80%-120% comes from the fact that for a normal distribution,
>> 95% of the results are within 2*SD of the mean. And sd =0.1 causes 95% of
>> the factors to be within [0.8,1.2].
>>
>> 2018-08-23 12:18 GMT+02:00 Jose Monreal Bailey :
>>
>>> Hey everyone,
>>>
>>> I am trying to understand in the wiki
>>> 
>>> the following sentence:
>>>
>>> Using *speedFactor*="normc(1,0.1,0.2,2)" will result in a speed
>>> distribution where 95% of the vehicles drive between 80% and 120% of the
>>> legal speed limit.
>>>
>>> As stated before the parameters are (MEAN, SD, MIN, MAX), so for max if
>>> its 2, shouldn't it be twice ? 200%? and by MIN I am guessing that it
>>> reduces by that factor, right?
>>>
>>> Best regards,
>>> José
>>>
>>> ___
>>> sumo-user mailing list
>>> sumo-user@eclipse.org
>>> To change your delivery options, retrieve your password, or unsubscribe
>>> from this list, visit
>>> https://dev.eclipse.org/mailman/listinfo/sumo-user
>>>
>>>
>> ___
>> sumo-user mailing list
>> sumo-user@eclipse.org
>> To change your delivery options, retrieve your password, or unsubscribe
>> from this list, visit
>> https://dev.eclipse.org/mailman/listinfo/sumo-user
>>
>
> ___
> sumo-user mailing list
> sumo-user@eclipse.org
> To change your delivery options, retrieve your password, or unsubscribe
> from this list, visit
> https://dev.eclipse.org/mailman/listinfo/sumo-user
>
>
___
sumo-user mailing list
sumo-user@eclipse.org
To change your delivery options, retrieve your password, or unsubscribe from 
this list, visit
https://dev.eclipse.org/mailman/listinfo/sumo-user

Re: [sumo-user] SpeedFactor question

[Jose Monreal Bailey]

Thanks for the clarification Jakob.
And those are factors from the speed defined for the lane, pavement, or is
it taken from the maxSpeed defined by the vehicle type?
I want to define a speed factor for my pedestrians.

Best regards,
José

On Thu, 23 Aug 2018 at 11:24, Jakob Erdmann  wrote:

> the 'c' in normc stans for 'normal distribution with cut-off'. The
> parameters 0.2 and 2 are the cut-off parameters and this means the sampled
> speedFactor values will allways be in the range [0.2, 2].
>
> Tne range of 80%-120% comes from the fact that for a normal distribution,
> 95% of the results are within 2*SD of the mean. And sd =0.1 causes 95% of
> the factors to be within [0.8,1.2].
>
> 2018-08-23 12:18 GMT+02:00 Jose Monreal Bailey :
>
>> Hey everyone,
>>
>> I am trying to understand in the wiki
>> 
>> the following sentence:
>>
>> Using *speedFactor*="normc(1,0.1,0.2,2)" will result in a speed
>> distribution where 95% of the vehicles drive between 80% and 120% of the
>> legal speed limit.
>>
>> As stated before the parameters are (MEAN, SD, MIN, MAX), so for max if
>> its 2, shouldn't it be twice ? 200%? and by MIN I am guessing that it
>> reduces by that factor, right?
>>
>> Best regards,
>> José
>>
>> ___
>> sumo-user mailing list
>> sumo-user@eclipse.org
>> To change your delivery options, retrieve your password, or unsubscribe
>> from this list, visit
>> https://dev.eclipse.org/mailman/listinfo/sumo-user
>>
>>
> ___
> sumo-user mailing list
> sumo-user@eclipse.org
> To change your delivery options, retrieve your password, or unsubscribe
> from this list, visit
> https://dev.eclipse.org/mailman/listinfo/sumo-user
>
___
sumo-user mailing list
sumo-user@eclipse.org
To change your delivery options, retrieve your password, or unsubscribe from 
this list, visit
https://dev.eclipse.org/mailman/listinfo/sumo-user

Re: [sumo-user] SpeedFactor question

[Jakob Erdmann]

the 'c' in normc stans for 'normal distribution with cut-off'. The
parameters 0.2 and 2 are the cut-off parameters and this means the sampled
speedFactor values will allways be in the range [0.2, 2].

Tne range of 80%-120% comes from the fact that for a normal distribution,
95% of the results are within 2*SD of the mean. And sd =0.1 causes 95% of
the factors to be within [0.8,1.2].

2018-08-23 12:18 GMT+02:00 Jose Monreal Bailey :

> Hey everyone,
>
> I am trying to understand in the wiki
> 
> the following sentence:
>
> Using *speedFactor*="normc(1,0.1,0.2,2)" will result in a speed
> distribution where 95% of the vehicles drive between 80% and 120% of the
> legal speed limit.
>
> As stated before the parameters are (MEAN, SD, MIN, MAX), so for max if
> its 2, shouldn't it be twice ? 200%? and by MIN I am guessing that it
> reduces by that factor, right?
>
> Best regards,
> José
>
> ___
> sumo-user mailing list
> sumo-user@eclipse.org
> To change your delivery options, retrieve your password, or unsubscribe
> from this list, visit
> https://dev.eclipse.org/mailman/listinfo/sumo-user
>
>
___
sumo-user mailing list
sumo-user@eclipse.org
To change your delivery options, retrieve your password, or unsubscribe from 
this list, visit
https://dev.eclipse.org/mailman/listinfo/sumo-user

[sumo-user] SpeedFactor question

[Jose Monreal Bailey]

Hey everyone,

I am trying to understand in the wiki

the following sentence:

Using *speedFactor*="normc(1,0.1,0.2,2)" will result in a speed
distribution where 95% of the vehicles drive between 80% and 120% of the
legal speed limit.

As stated before the parameters are (MEAN, SD, MIN, MAX), so for max if its
2, shouldn't it be twice ? 200%? and by MIN I am guessing that it reduces
by that factor, right?

Best regards,
José
___
sumo-user mailing list
sumo-user@eclipse.org
To change your delivery options, retrieve your password, or unsubscribe from 
this list, visit
https://dev.eclipse.org/mailman/listinfo/sumo-user