5.—(1) The vehicular light signals and pedestrian light signals and the indicators for pedestrians when they are placed at or near any crossing shall be so designed and constructed that–
(a)before the signals and indicators are operated by the pressing of a push button or as described in paragraph 6 of this Schedule the vehicular light signal shows a steady green light, the pedestrian light signal shows a red light, the word “WAIT” in the indicator for pedestrians is not illuminated, any device for making tactile signals is inactive, and any device for emitting audible signals is silent;
(b)when a push button is pressed–
(i)after the expiration of the vehicle period but before the vehicular light signals are showing a steady amber light, the signals and indicators, unless they are working as described in paragraph 6 of this Schedule, are caused to show lights in the sequences specified in descending order in column 1 in the case of vehicular light signals, in column 2 in the case of pedestrian light signals and in column 3 in the case of the indicators for pedestrians, of either Part IV or Part V of this Schedule;
(ii)when the vehicular light signals are showing a steady amber light or a red light when the signal to pedestrians shows a red or steady green light, there is no effect;
(iii)when the pedestrian light signals are showing a flashing green light, the word “WAIT” in each of the indicators for pedestrians is illuminated immediately and the signals and indicators are caused to show lights in the sequence specified in sub-paragraph (i) of this paragraph at the end of the next vehicle period; and
(iv)after the pedestrian light signals have ceased to show a flashing green light and before the end of the next vehicle period, the word “WAIT” in each of the indicators for pedestrians is illuminated immediately and the signals and indicators are caused to show lights in the sequence specified in sub-paragraph (i) of this paragraph at the end of the vehicle period;
(c)the periods during which lights are shown by the signals and the indicators, commence and terminate in relation to each other as shown in either Part IV or Part V of this Schedule as if each horizontal line therein represented one moment in time, subsequent moments occurring in descending order, but the distances between the horizontal lines do not represent the lengths of the periods during which the lights shown by the signals and the indicator are, or are not, lit.
(2) Where a device for emitting audible signals has been provided pursuant to paragraph 3(4) of this Schedule, it shall be so designed and constructed that a pulsed sound is emitted throughout every period when the pedestrian light signals are showing a steady green light, and at the same time the vehicular light signals are showing a red light, but only during such periods and at no other times, save that such a device need not operate during the hours of darkness.
(3) Where a device for making tactile signals has been provided pursuant to paragraph 4(4) of this Schedule, it shall be so designed and constructed that a regular movement perceptible to touch by pedestrians is made throughout every period when the pedestrian light signals are showing a steady green light, and at the same time the vehicular light signals are showing a red light, but only during such periods and at no other times.
(4) In this paragraph “vehicle period” means such period as may be fixed from time to time in relation to a “Pelican” crossing, which commences when the vehicular light signals cease to show a flashing amber light and during which the vehicular traffic light signals show a green light.