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[sumo-user] query in gap based actuated traffic signal control

hi all, 
i tried with gap-based actuated traffic control .  i want to know whether  the Max-gap value will affect the summary or trip output.  for a four leg straight cross intersection,   flow is set to 500v/hr.  i changed max-gap value to 2, 4, 5, 9. but there is no difference in summary or trip output. is it possible to get a difference.?
   my another query is 
when simulating with default actuated phase plan there is no warning.  default phase plan is 
<tlLogic id="n2" type="actuated" programID="0" offset="0">
<param key="max-gap" value="3.0"/>
  <param key="detector-gap" value="2.0"/>
  <param key="show-detectors" value="true"/>
  <param key="file" value="NULL"/>
  <param key="freq" value="300"/>
        <phase duration="39" state="GggrrrGggrrr" minDur="15" maxDur="50"/>
        <phase duration="6"  state="yyyrrryyyrrr"/>
        <phase duration="39" state="rrrGggrrrGgg" minDur="15" maxDur="50"/>
        <phase duration="6"  state="rrryyyrrryyy"/>
    </tlLogic>

if i change this phase plan  as below


<additional>
<tlLogic id="n2" type="actuated" programID="1" offset="0">
<param key="max-gap" value="9.0"/>
  <param key="detector-gap" value="2.0"/>
  <param key="show-detectors" value="true"/>
  <param key="file" value="NULL"/>
  <param key="freq" value="300"/>
        <phase duration="45" state="rgrGrgrgrGrg" minDur="15" maxDur="50"/>
        <phase duration="5"  state="ryryryryryry"/>
        <phase duration="35" state="GrgrgrGrgrgr" minDur="15" maxDur="50"/>
        <phase duration="5"  state="yryryryryryr"/>
    </tlLogic>
</additional> 
i get some warning

Loading configuration... done.
Loading net-file from 'E:\thilaga\sumo_demo\thiactuated.net.xml'... done (10ms).
Loading additional-files from 'E:\thilaga\sumo_demo\passdist.add.xml'... done (26ms).
Loading additional-files from 'E:\thilaga\sumo_demo\optacttls.add.xml'...
Warning: At actuated tlLogic 'n2', actuated phase 0 has no controlling detector
Warning: At actuated tlLogic 'n2', actuated phase 2 has no controlling detector
Warning: At actuated tlLogic 'n2', linkIndex 0 has no controlling detector
Warning: At actuated tlLogic 'n2', linkIndex 3 has no controlling detector
Warning: At actuated tlLogic 'n2', linkIndex 6 has no controlling detector
Warning: At actuated tlLogic 'n2', linkIndex 9 has no controlling detector
done (2
ms).
Loading additional-files from 'E:\thilaga\sumo_demo\laacdum.add.xml'... done (1ms).
Loading done.
Simulation started with time: 0.00
Warning: Vehicle '7.0' performs emergency braking with decel=-9.00 wished=4.50 severity=1.00, time=41.00.
Simulation ended at time: 7897.00

 is it ok to proceed or we need to rectify it.  how to rectify .


with thanks and regards
M S Thilagavathy

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