Had a whinge to vicroads about the traffic lights near where I live. Got the following response I dont know which Elgar Road approach you are concerned with however I will presume it is the north approach as this would have a lower right turn demand. On the north approach the right turn lane detector loop is set one car length back from the stop line such that it takes a minimum of two vehicles to trigger the right turn arrow. I assume you were the only person in the queue and thus you were not detected. this arrangement stops the right turn comming up every cycle thus reducing the impact of a low demand on the operation of the site. If you are a regular user of this right turn and you wish to be detected I suggest you sit one car back unless there are more than one vehicle wishing to turn right. buggers!