Aimsun Next API Traffic Lights¶

Read the number of signal groups present on a node or the traffic lights on a ramp meter.

int ECIGetNumberSem(int idObject)

≥ 0: For a node: Number of signal groups in the node. For delay and green by lane ramp meters: number of traffic lights, one by lane covered by the ramp meter. 1 for other types of ramp meters.
< 0: Error

Read the position in the section of a ramp meter or traffic light in the current simulation time. This requires there is a control plan loaded.

double ECIGetPositionSem(int idObject, int numsem )

≥0: For ramp meters: distance to the beginning of the section where the ramp meter is located.
<= 0 :For nodes: distance from the end of the section where the signal group is located, that is, 0 by default or a negative value to subtract to the section's length (section where the traffic light is located at).
<= 1000: Error

Read the state of a ramp meter or traffic light.

double ECIGetStateSem (int idObject, int numsem)

Functions related to Traffic Lights¶