Singapore legislation
Regulation 28
of Road Traffic (Motor Vehicles, Construction and Use) Rules
Regulation 28
Light from direction indicator
Subregulation 1
The light emitted by a direction indicator shall be diffused by frosted glass or other adequate means.
Subregulation 2
Every direction indicator shall, when in operation, show a light which flashes constantly at the rate of not less than 60 or more than 120 flashes per minute, each flash being of such duration as to permit the light to achieve its full brightness and to be fully observable to the eye at a reasonable distance.
Subregulation 3
The light emitted by a direction indicator shall begin to flash not later than one second after the indicator is switched on and between each flash there shall be an interval observable to the eye.
Subregulation 4
Where more than one type of direction indicators are fitted on a side of a motor vehicle, or a vehicle drawing a trailer or trailers in accordance with rule 26 they shall be so designed and fitted that the light emitted by such indicators flash simultaneously.
Subregulation 5
No direction indicator may comprise 2 or more lamps so designed and fitted as to flash in sequence.
Subregulation 6
A direction indicator may consist of more than one, but not more than 3 lamps so designed or fitted as to flash simultaneously.
Subregulation 7
A vehicle shall be equipped with a device or devices so designed and fitted that, when the switch actuating the indicators fitted on one side of the vehicle is operated, the device or devices shall, if and so long as every indicator fitted on that side of the vehicle is in operation, give a warning readily visible or audible to the driver when in his seat.
Subregulation 8
The electric circuit or circuits required for the operation of the direction indicators fitted on a vehicle shall be so arranged that if one or more of the direction indicators fail to operate, the other direction indicator or indicators shall not thereby become inoperative.
Subregulation 9
The illuminated colour of every direction indicator fitted on a vehicle registered after 1st January 1975 shall be amber.
Subregulation 10
The illuminated colour of every direction indicator fitted on a vehicle, other than the one referred to in paragraph (9), shall —
if it shows both to the front and to the rear, be amber;
if it shows only to the front, be amber or white; and
if it shows only to the rear, be amber or red.
Subregulation 11
The total rated wattage of the bulb or bulbs illuminating a direction indicator, other than a side or flank indicator, shall be not less than 15 watts or not more than 36 watts.
Subregulation 12
Notwithstanding paragraph (11), the total rated wattage of the bulb or bulbs illuminating every rear direction indicator of the following vehicles shall be not less than 25 watts or not more than 36 watts:
a public service vehicle registered on or after 1st July 1980, with a carrying capacity of more than 14 persons excluding the driver; and
a goods vehicle registered on or after 1st July 1980, with an unladen weight exceeding 1,500 kilograms.
Subregulation 13
Notwithstanding rule 27(3) and (4), every bus may be fitted with an additional pair of direction indicators mounted —
at the rear of the vehicle;
symmetrically with the longitudinal plane of the vehicle; and
as near to the extreme projecting point of the vehicle and as high as possible.