Homer wrote:
To be a streetlight it has to light the street, at night, when it is dark. That is the definition someone posted on these forums some time ago.
If it does not light the street at night, when it is dark then it is not a streetlight. Daytime, when it is light is not relevant.
Not really, it just has to be a pole within (have to double check) but within 200yds of each other. That is a pole that has a lamp, with a set distance, no reference that it has to be lit. After all if one was out, then that might make the whole street of lamps illegal, and so no speed limit might exist. I'd have to check the reference in the Highway code website ... add link later...
links:
Department for Transport wrote:
(Wiki)In August 2006, the Department for Transport issued new guidance relating to speed limits. It states that:[1]
Section 82(1)(a) (of the Road Traffic Regulation Act 1984 (RTRA 1984)) defines a restricted road in England and Wales as a road which is provided with “a system of street lighting furnished by means of lamps placed not more than 200 yards apart”. Section 81 specifically makes it an offence for a person to drive a motor vehicle at a speed of more than 30 mph on a restricted road.
"Street lighting" is further defined as follows:
As set out in paragraph 45, it is generally recognised that a ‘system’ of street lighting could be three or more lamps spaced not more than 183 metres apart. However, street lighting (for the purposes of determining whether or not a road is a restricted) is not necessarily limited to street lamps, but may extend to lighting provided by authorities or parish councils.
To avoid confusion that could arise if some 30 mph zones were 'street-lit' and some were not, DfT guidance goes onto say:
Direction 11 of The Traffic Signs Regulations and General Directions 2002 (TSRGD 2002) defines the requirements for the placing of speed-limit repeater signs. This states that speed-limit repeater signs cannot be placed along a road on which there is carriageway lighting not more than 183 metres apart and which is subject to a 30 mph speed limit. The Department will not make exceptions to this rule.
This leads to the conclusion that:
This means it should be assumed that, unless an order has been made and the road is signed to the contrary, a 30 mph speed limit applies where there are three or more lamps throwing light on the carriageway and placed not more than 183 metres apart.
A limit of 30 miles per hour (mph) or 48 kilometres per hour (km/h) usually applies to all traffic on all roads with street lighting. This applies unless you see signs showing otherwise.