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     SITE NAME MILLERS ROAD NR KOROROIT CREEK ROAD   SITE NO. 7538
PEDESTRIAN OPERATION
TRAM SITE
 
1. PEDESTRIAN INTRODUCTION  
     
The pedestrian cannot introduce in AØ.      
         
The pedestrian can introduce in BØ if there is no tram call and SG1 & SG2 have gapped or wasted (unless special timers are used - see paragraph below).
         
The pedestrian can introduce at the start of CØ provided SG1 & SG2 are in extension and there is no tram call (SG1 & SG2 close down at the start of BØ yellow). If the pedestrian was demanded prior to CØ, it will introduce once the tram call has been removed (ie. the tram has departed the stop line loop) or at the last instant of CØ, whichever comes first. Any pedestrian demand placed during BØ intergreen or during CØ will not be serviced until the next cycle.
         
2. SPECIAL TIMERS          
         
The above describes the normal operation in which the introduction of the pedestrian is delayed by a tram call. In some circumstances however it may be desirable to force on the pedestrian when a tram places a call via an advance detector. This type of operation is achieved by the use of a special timer for each approach, namely timers 3 and 4.
         
Timer 3 is reset and starts timing at the beginning of BØ.    
While timer 3 is still timing in BØ, a tram call via detector 6 will delay the pedestrian (as for paragraph 1 above). After timer 3 has expired in BØ a tram call via detector 6 will force on the pedestrian provided:
  a)  the pedestrian demand was placed prior to the tram call  
  b)  SG1 and SG2 are in extension  
  c)  there are no tram calls via detectors 7, 8 or 9.  
 
Timer 4 is reset and starts timing at the beginning of BØ.  
While timer 4 is still timing in BØ, a tram call via detector 8 will delay the pedestrian (as for paragraph 1 above). After timer 4 has expired in BØ a tram call via detector 8 will force on the pedestrian provided:
  a)  the pedestrian demand was placed prior to the tram call  
  b)  SG1 and SG2 are in extension  
  c)  there are no tram calls via detectors 6, 7 or 9.  
 
Timers 3 and 4 each have four timesettings which are selected by the Z flags (refer Tram Priority Operation).
               
If the value of a timesetting is larger than the length of BØ, then a tram call will always delay the pedestrian introduction.
     
3. NOTE  
 
The operation of DØ, EØ, and FØ are the same as for AØ, BØ, and CØ respectively.  
   
4. PEDESTRIAN WALK TIME SUBSTITUTION  
   
When XSF3 (Master & Flexi) is set, P1 uses Special Purpose Timersetting No. 17 for its walk time.  
                                       
DESIGNED BY: SOH TAN-HUA           DATE 17/05/05
G:\TMC Opsheets\Pending\[7538.htm]Tram Notes 1