Both controllers have a trivial formula that only consists of one
inequality each:

actuated: if (timeHeadWayInApproach > criticalHeadway) ... switch
delay_based: if (delayInApproach < threshold) ... switch

2018-06-21 0:35 GMT+02:00 Jane Cheung <[email protected]>:

> Thank you  Jakob,
>  Additional question, there are mathematical formulas that  are  used to
> describe the relationships or not?
>
> Best regards!
>
>
>
> On Wed, Jun 20, 2018 at 12:45 AM Jakob Erdmann <[email protected]>
> wrote:
>
>> see http://sumo.dlr.de/wiki/Simulation/Traffic_Lights#
>> Actuated_Traffic_Lights
>> regards,
>> Jakob
>>
>>
>> 2018-06-20 1:26 GMT+02:00 Jane Cheung <[email protected]>:
>>
>>> Hi, guys,
>>>        Could someone tell me  how  " actuated" type traffic lights
>>> work?
>>>        What factors are used to actuate the duration of each phase, the
>>> number of cars  that are going to be waiting for at the junction or the
>>> other factors? What's more, how does SUMO get  that factors?
>>>
>>>
>>>
>>> Best regard!
>>>
>>> Jane
>>>
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