For permitted left-turns, the operation of left turners is similar to that of left turning movements at a two-way stop controlled intersection. In this case, the subject vehicle has to find its way through the opposing straight movement. So, I think if you combine signal with either priority rules or conflict area rules, you will be able to model permitted left-turns. During the green phase, the left-turners are able to complete their movement by accepting a gap in the conflicting stream. Please take care in positioning the signal head and the locations that define the conflicting areas so that both operate independently.

Regards,

Mithun

Thank you for your response. I appreciate it.

I actually did the same thing, however, I am not sure how I should do that for actuated signal controllers as it does not allow overlapping of three signals.

Would you also please bring up an example for this sentence: “Please take care in positioning the signal head and the locations that define the conflicting areas so that both operate independently.”

Thank you.