It is the policy of the authority for all traffic signals and pelican crossings to be remotely monitored so that lamp failures are known immediately.
Consequently, no inspections are made for illumination.
In the case of urgent faults in signal equipment, acceptable operation should be restored within eight hours and a full repair effected within 7 consecutive days.
In the case of non urgent faults in signal equipment, a full repair should be effected within seven consecutive days.
In the case of optical equipment, red lamp failures should be repaired within six hours. Other lamp failures, push button units and lantern bodies should be repaired within twelve hours. Backing boards, white strips and visors will be repaired within twenty four hours.
Three monthly inspection of equipment are carried out in accordance with HD 24/86.
Bulk lamps changes will be as follows:
|Vehicle reds and greens||Every 6 months|
|Pedestrian reds and greens|
|All other lamp (including ambers)||Every 12 months|
External cleaning of all lantern aspects, photo electric cells and box signs is carried out every six months.
Internal cleaning of all lantern aspects and box signs is carried out every twelve months.
Posts will be painted as and when required.
On every attendance on site for optical maintenance it is also be ensured that any additional failed lamps are restored, lanterns are correctly adjusted, aligned and secure, backing boards, white strips and visors are correctly fitted, and any evident signal faults are rectified.