Not required., Ref.670 - 5 mph., Ref.670 - 10 mph., Ref. 616 - no entry., Ref. 613 - no left turn., Ref. 951 - cycles prohibited., Ref. 606L - turn left., Ref. 606R - turn right., Ref. 610L - keep left., Ref. 610R - keep right., Ref. 955 - cycle route., Ref. 956 - cycles/ pedestrians only., Ref. 957 - cycles/ pedestrians (route marked)., Ref. 957 Rev. - cycles/ pedestrians (route marked, reversed)., Blanking cap.