Specifications

ST900 Family General Handbook
667/HB/32900/000 Issue 12 Page 18 of 265
RLM Red Lamp Monitoring
rms Root Mean Square
ROW Right Of Way
RTC Real Time Clock
SA Speed Assessment
SDE Speed Discrimination Equipment
SDE/SA Speed Discrimination Equipment / Speed Assessment
STC Siemens Traffic Controls
SVD Selective Vehicle Detector
TfL Transport for London
UTC Urban Traffic Control
VA Vehicle Actuated
ZXO Zero Cross-Over