question

@meng L

The reason for the problem you are seeing in model 001 is that when the Task Executors come into contact with each other, both of their "Handle Collision" triggers are fired, causing them both to stop. This leads to repeated starting and stopping that blocks either Task Executor from being able to move. I suggest setting up your TE system so that Task Executors only stop for the Task Executor in front of them.

One way to do this is to make Task Executors only stop during collisions with a specific car. In the example model I've attached, Task Executor 1, 2, and 3 are in order along the network nodes, so TE 2 will only have to stop for TE 1, TE 3 will have to stop for TE 2, etc.

Here is some of the code I used to do this (For TE 3):

Object otherobject = param(1);
Object thisobject = current;
if(otherobject == Model.find("TaskExecuter2")){
	thisobject.stop(48);
	senddelayedmessage(thisobject,0.5,thisobject);
}

Here is the example model: tecollisionanswer.fsm