Specifications

ST900 Family General Handbook
667/HB/32900/000 Issue 12 Page 12 of 265
35 SELF-TEST FACILITY ..................................................................................... 236
36 MOVA (MICROPROCESSOR OPTIMISED VEHICLE ACTUATION) .............. 237
36.1 Introduction ............................................................................................... 237
36.2 Instructions for Connecting MOVA to Traffic Controllers .......................... 237
36.3 ST900 Semi-Integral MOVA / Serial MOVA .............................................. 237
37 INTEGRAL TC12 OTU ..................................................................................... 239
37.1 General Description .................................................................................. 239
37.2 Detector Inputs ......................................................................................... 239
37.3 Upload / Download and Remote Handset................................................. 239
37.4 Integral LMU/RLM ..................................................................................... 240
38 LAMP MONITORING ........................................................................................ 241
38.1 Lamp Monitoring Facility ........................................................................... 241
38.2 Red Lamp Monitor .................................................................................... 245
38.3 Stand-Alone Pedestrian Streams on an ST900 ........................................ 251
39 RIPPLE CHANGE FACILITY ............................................................................ 255
39.1 What is a Ripple Change? ........................................................................ 255
39.2 Normal Controller Operation ..................................................................... 256
39.3 Ripple Change Facility ............................................................................. 256
39.4 Ripple Change Parallel Stage Streaming Facilities .................................. 257
39.5 Interaction with Other Facilities ................................................................ 257
39.6 Green Filter Arrows .................................................................................. 260
40 INDEX ............................................................................................................... 264
FIGURES
Figure 1 – ST900 System Overview......................................................................... 20
Figure 2 – ST900 Controller Cabinet General Arrangement .................................... 21
Figure 3 – ST900 Controller Cabinet showing new equipment ................................ 22
Figure 4 – The ST900 Rack (General Arrangement) ............................................... 23
Figure 5 – ST900SE................................................................................................. 24
Figure 6 – Theoretical Junction (ST900) ................................................................. 34
Figure 7 – ST900 ELV System Overview ................................................................. 43
Figure 8 – ST900 ELV Controller Cabinet – View of right side ................................ 44
Figure 9 – ST900 ELV Controller Cabinet – View of left side .................................. 45
Figure 10 – ST900 ELV Cabinet arrangement with swing frame open .................... 45
Figure 11 – ST900 ELV Rack for fitting in Alternative Cabinets (front) .................... 47
Figure 12 – ST900 ELV Rack for fitting in Alternative Cabinets (rear) .................... 47
Figure 13 – Theoretical Junction (ST900 ELV) ........................................................ 58
Figure 14 – General Timers ..................................................................................... 87
Figure 15 – Pelican Sequence ................................................................................. 97
Figure 16 – Pedestrian Far Side Sequence ............................................................. 98
Figure 17 – Pedestrian Near Side Sequence ........................................................ 100
Figure 18 – Pedestrian Clearance and Intergreen Times ...................................... 101
Figure 19 – Vehicle to Pedestrian Intergreen ........................................................ 102
Figure 20 – Fixed Pedestrian Clearance Period .................................................... 103
Figure 21 – Pedestrian Demand Processing ......................................................... 108
Figure 22 – Call/Cancel Example........................................................................... 113