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Speed limits in New Zealand are in kilometres per hour and range up to and including 100 km/h. New Zealand speed limits were in miles per hour (mph) until 1975, when the country metricated its road signage. Significant changes were made to the rules for setting speed limits in 2003 and 2011, including provision for 40 km/h limits. However, it was then necessary to introduce the Land Transport (Speed Limits Validation) Bill in 2015 to confirm the legitimacy of the previous changes.〔(Department of Internal Affairs Regulatory Impact Statement: Land Transport (Speed Limits Validation) Bill 2015 )〕 The most commonly seen are: *100 km/h, the current open road limit, is used in rural areas and on motorways, expressways and highways, as well as areas where there is little development on the roadside. *80 km/h is used where it would not be safe to use the 100 km/h open road limit, such as urban arterial routes or areas requiring extra care (such as Auckland City's Central Motorway Junction, due to its complexity). Between metrication in 1975 and 1986, 80 km/h was the open road limit. *70 km/h in small country towns, urban fringes (often preceding a change from the open limit to urban limit), or where development is on only one side of the road *60 km/h in some built-up areas including arterial routes. *50 km/h in most urban or built-up areas; LSZ (see below) under adverse conditions *40 km/h The Land Transport Rule: Setting of Speed Limits 2003 allowed councils to set limits below 50 km/h in urban areas.〔(NZTA Guidelines for setting speed limits and procedures for calculating speed limits p.45 )〕 Since then many councils have set lower limits. For example, Safer Speed Areas were first introduced in Hamilton in 2011 and by 2014 there were 36 of them.〔(26 Feb 2014 HCC media release - Further 40km/h speed limits for Hamilton )〕 *30 km/h through most roadworks. *20 km/h traffic travelling both ways past school buses that have stopped to unload or pick up passengers; and through accident sites. Some vehicles are restricted to lower overall speed limits such as trucks and vehicles with trailers (90 km/h), and school buses displaying signs (80 km/h). The letters LSZ (Limited Speed Zone) indicate that the limit is 100 km/h unless conditions (visibility, road condition, rain, many other road users) would make this unwise, in which case it is 50 km/h. This type of speed limit could no longer be set since 2003 and was progressively being replaced with set speed limits. From 1 July 2009 the sign is now illegal. There is no minimum speed limit but vehicles travelling at less than the maximum speed must keep to the side of the road if any cars are following and pull over to allow others to pass as soon as it is safe. ==Signage== Signage tends to follow the European model of a number inside a red circle. Sometimes, the open road limit occurs as a black forward slash inside a thin black ring (similar to the UK's National Speed Limit sign). Image:New Zealand road sign R1-1 (10).svg|(RG-1) 10 km/h speed limit Image:New Zealand road sign R1-1 (20).svg|(RG-1) 20 km/h speed limit Image:New Zealand RG-1 (30 kmh).svg|(RG-1) 30 km/h speed limit Image:New Zealand road sign R1-1 (40).svg|(RG-1) 40 km/h speed limit Image:New Zealand road sign R1-1 (50).svg|(RG-1) 50 km/h speed limit Image:New Zealand RG-1 (60 kmh).svg|(RG-1) 60 km/h speed limit Image:New Zealand road sign R1-1 (70).svg|(RG-1) 70 km/h speed limit Image:New Zealand road sign R1-1 (80).svg|(RG-1) 80 km/h speed limit Image:New Zealand road sign R1-1 (90).svg|(RG-1) 90 km/h speed limit Image:New Zealand RG-2 (100 kmh).svg|(RG-2) 100 km/h speed limit (this is the maximum legal speed for motor vehicles in New Zealand) Image:New Zealand road sign R1-2.svg|(RG-2.1) Speed Limit Derestriction (open road with no posted speed limit, but the maximum legal limit of 100 km/h still must be obeyed) Image:New Zealand PW-25 (55 kmh).svg|(PW-25) 55 km/h advisory speed Image:New Zealand RG-3.svg|(RG-3) Limited Speed Zone (no longer in use) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Speed limits in New Zealand」の詳細全文を読む スポンサード リンク
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