Stopping too far back at red traffic signals - driver stupidity or lack of education?

Richard53

force_ten said:

the problem is not stopping to far back because a portable light head fitted with microwave detectors will pick up vehicles that are 40mts down the road and detect up to 5mts from the signal head so at 3mts the car had travelled through the full range of the microwave detector

the biggest problem at temporary lights working in vehicle activation mode and using microwave detectors is creeping, this is where the driver sees the lights and slows down in anticipation of the lights changing and slowly creeps up to the light head and stops 

if they travel through the 40mt to 5mt detection zone at speeds lower than 10mph then the microwave detectors will not send a demand signal to the controller and the lights will not change, but the system has a nudge circuit fitted where the control unit sees no demand from the light head and automatically runs a full cycle nudge is normally set between 2.5 minutes and 3 minutes but this time may be extended slightly at a set of three way lights but should never be over 5 minutes between nudges 

Interesting. Does this mean that the best approach is to drive up as fast as possible?

force_ten

Richard53 said:

Interesting. Does this mean that the best approach is to drive up as fast as possible?

no it means that when you enter the detection zone 40mts from the light head you should be traveling at a speed above 10mph for the head to register the demand 

Richard53

force_ten said:

Richard53 said:

Interesting. Does this mean that the best approach is to drive up as fast as possible?

no it means that when you enter the detection zone 40mts from the light head you should be traveling at a speed above 10mph for the head to register the demand 

Ah, thanks.

rdr

You can usually trigger them  by pushing your hand towards them fast, the red led will come on. I do it when I am on my bike or in the car when they appear stuck.