Motor Vehicle Crashes in New Zealand 2011 - Ministry of Transport
Motor Vehicle Crashes in New Zealand 2011 - Ministry of Transport
Motor Vehicle Crashes in New Zealand 2011 - Ministry of Transport
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ROAD USER BEHAVIOUR SURVEYS 159<br />
URBAN CAR SPEEDS<br />
In the survey <strong>of</strong> urban speeds <strong>of</strong> cars carried out <strong>in</strong> July and August <strong>2011</strong>, approximately 16,200 cars were surveyed at 64 sites<br />
around the country.<br />
The speed surveys are designed to monitor changes <strong>in</strong> free speeds <strong>of</strong> vehicles. That is speeds atta<strong>in</strong>ed when the vehicle is<br />
unimpeded by the presence <strong>of</strong> other vehicles (ie, there is some distance between a vehicle travell<strong>in</strong>g at a free speed and the<br />
vehicle <strong>in</strong> front <strong>of</strong> it) or by environmental features such as traffic lights, <strong>in</strong>tersections, hills, corners or road works. By monitor<strong>in</strong>g<br />
the speeds <strong>of</strong> unimpeded vehicles these surveys measure driver choice <strong>of</strong> speed.<br />
The regional surveys are designed to track changes over time <strong>in</strong> driver speed choice with<strong>in</strong> regions. They are not designed to<br />
provide valid comparisons between regions.<br />
TABLE 7: MEAN URBAN SPEEDS (KM/H)<br />
REGION 2005 2006 2007 2008 2009 2010 <strong>2011</strong><br />
Northland 51.6 53.0 53.0 52.4 51.8 51.7 51.5<br />
Auckland 54.5 55.4 55.3 55.1 54.8 54.1 54.0<br />
Waikato 53.7 53.9 52.2 52.5 51.5 52.3 51.8<br />
Bay <strong>of</strong> Plenty 55.6 55.7 55.2 55.8 55.0 55.3 55.2<br />
Gisborne 49.6 47.4 48.2 49.5 49.2 49.2 49.5<br />
Hawke’s Bay 51.3 52.3 51.7 52.2 52.7 51.4 52.1<br />
Taranaki 49.5 48.4 48.9 48.2 48.7 48.8 49.4<br />
Manawatu-Whanganui 51.8 50.3 50.2 51.6 51.2 50.9 51.6<br />
Well<strong>in</strong>gton 49.9 49.1 49.4 49.7 49.3 49.1 49.1<br />
Nelson-Marlborough 49.7 49.0 49.0 50.4 48.9 49.0 49.0<br />
West Coast - - - - - - *see note<br />
Canterbury 52.3 52.5 52.5 52.1 52.5 52.3 51.4<br />
Otago - 53.1 52.4 51.4 51.4 51.0 50.9<br />
Southland - *see note 55.1 54.4 54.3 54.0 54.1<br />
<strong>New</strong> <strong>Zealand</strong> 52.4 52.6 52.5 52.6 52.3 52.0 52.0<br />
TABLE 8: 85TH PERCENTILE URBAN SPEEDS (KM/H)<br />
REGION 2005 2006 2007 2008 2009 2010 <strong>2011</strong><br />
Northland 57.0 57.5 58.0 57.0 56.0 56.0 56.0<br />
Auckland 59.0 60.0 60.0 60.0 59.0 59.0 58.0<br />
Waikato 59.5 59.5 58.0 58.0 57.0 57.0 57.0<br />
Bay <strong>of</strong> Plenty 62.5 61.5 61.5 62.5 62.0 62.5 61.5<br />
Gisborne 54.5 53.0 53.5 54.0 54.0 54.0 54.5<br />
Hawke’s Bay 56.5 57.0 57.0 57.0 57.0 56.0 56.0<br />
Taranaki 55.0 54.0 54.0 53.0 54.0 54.0 55.0<br />
Manawatu-Whanganui 56.5 55.0 55.0 56.0 56.0 56.0 56.0<br />
Well<strong>in</strong>gton 54.0 53.0 53.0 53.5 53.0 53.0 53.0<br />
Nelson-Marlborough 54.5 53.5 53.5 54.5 53.5 53.0 53.5<br />
West Coast - - - - - - *see note<br />
Canterbury 58.0 58.0 59.0 58.0 58.0 59.0 59.0<br />
Otago - 57.0 57.0 56.5 56.5 55.5 55.5<br />
Southland - *see note 60.5 59.5 58.5 58.5 58.5<br />
<strong>New</strong> <strong>Zealand</strong> 58.0 58.0 58.0 58.0 57.0 57.0 57.0<br />
85th percentile speed means 15 percent <strong>of</strong> the vehicles surveyed were travell<strong>in</strong>g faster than this speed.<br />
* NOTE: Too few sites <strong>in</strong> this area to provide regional estimates.