Crash data for Grenada Dr, Wellington
Cover sheet
Page 1 of 6
– as at 8 Dec 2025
OIA-20434 – Crash data for Grenada Drive, Wellington
Report Date:
8/12/2025
Data extract date:
8/12/2025
Requester:
Andy Palmer
Request:
I would also like a list of all traffic accidents since 2015 reported to you related to
Grenada Drive, Wellington.
The list should include:
Date of incident
Time of incident
Nature of incident, e.g injury accident, fatal accident
Source database:
CAS
Report produced by:
Statistical Services
Peer reviewed by:
Statistical Services
Please note the fol owing concerning the data contained in this spreadsheet:
• This data is provided from the road traffic crash database; Crash Analysis System (CAS) version 2.14.0.
• NZ Transport Agency Waka Kotahi (NZTA) maintains CAS which is updated once a Traffic Crash Report
(TCR) is received from New Zealand Police sometime after the crash.
• Data is for all crashes for the years 2015 to 2025 as recorded in CAS to date - as at 8 December 2025.
• Data is limited to crashes on Grenada Drive, Wellington.
• A crash, to be recorded in CAS must have occurred on a road. The CAS definition of a road is any street,
motorway or beach, or a place to which the public have access with a motor vehicle, whether as of right or
not - for example, a public car park.
• Due to the police reporting time frame and subsequent data processing, there is a lag from the time of a
crash to full and correct crash records within CAS.
• Fatal crash report data is usually recorded in CAS within one working day of NZTA receiving it from New
Zealand Police. Serious Injury and Minor injury crash report data is usually recorded in CAS within four
weeks. Data relating to non-injury crashes may take up to seven months before it appears in CAS.
• Due to the nature of non-fatal crashes, it is believed that these are under-reported, with the level of under-
under the Official Information Act 1982
reporting decreasing with the increasing severity of the crash.
• Due to the COVID-19 pandemic, New Zealand had a four-level Alert system in place from 21 March 2020
until this changed to a Traffic Light system from 3 December 2021 to 12 September 2022. The amount of
traffic on the roads during Level 4 lockdowns was greatly reduced, which consequently reduced the
number of road crashes. Road movements under the Orange and Red levels of the Traffic Light system
would also be reduced due to the restrictions in place, so data from these periods wil not align with
previous trends.
• The cause of a crash cannot necessarily be attributed to any one factor (for example, fatigue) as a crash
Released
may have multiple factors.
• Where Alcohol / Drugs are a contributing factor to a crash, this factor has been separated into either
"Proven" or "Suspected". A factor is only counted once against a crash. Where a crash has both a proven
and suspected factor against it, only the factor "Proven" is counted.
• Crash severity is the severity of the worst injury in the crash. There may be more than one injury in a
crash, so the crash and injury tables may have different numbers.

Crash data for Grenada Dr, Wellington
Cover sheet
Page 2 of 6
– as at 8 Dec 2025
• CAS is continually updated as new information is provided, therefore data regarding injuries, and factors
attributed to crashes, may change from previous releases.
• Due to an increased focus by Police to update TCRs with additional information, particularly the outcome
of blood test results, the numbers of crashes with Alcohol and/or Drugs proven or suspected may change
from other data released previously.
• 2025 data is not yet complete in CAS but these are the current figures from CAS as at 8 December 2025.
For further information, please contact [email address]
1982
Act
Information
Official
the
under
Released

Crash data for Grenada Dr, Wellington – as at 8 Dec 2025
Data1
Page 3 of 6
This information must be read in conjunction with the Caveats on the first page of this spreadsheet.
Crashes on Grenada Drive, Wellington
Injuries from crashes on Grenada Drive, Wel ington
Year
Fatal crashes
Serious injury
Minor injury
Non-injury
1982
crashes
crashes
crashes
Total crashes
Year
Deaths
Serious injuries Minor injuries Total injuries
2015
0
2015
0
2016
1
2
3
2016
1
1
2017
1
1
2017
1
1
2018
0
2018
0
Act
2019
0
2019
0
2020
1
1
2
2020
1
1
2021
2
2
2021
0
2022
1
1
2022
1
1
2023
1
1
2
2023
1
1
2024
0
2024
0
2025*
1
1
2025*
0
Total
0
0
5
7
12
Total
0
0
5
5
* 2025 data is not yet complete in CAS, but these are the current figures from CAS as at 8 December 2025.
Information
Official
the
under
Released

Crash data for Grenada Dr, Wellington – as at 8 Dec 2025
Time of day
Page 4 of 6]
This information must be read in conjunction with the Caveats on the first page of this spreadsheet.
1982
Crashes on Grenada Drive, Wellington
Time block
Fatal crashes
Serious injury
Minor injury
Non-injury
crashes
crashes
crashes
Total crashes
Act
00:00-02:59
0
03:00-05:59
0
06:00-08:59
2
4
6
09:00-11:59
0
12:00-14:59
1
1
15:00-17:59
1
1
2
18:00-20:59
1
1
21:00-23:59
1
1
2
Information
Total
0
0
5
7
12
* 2025 data is not yet complete in CAS, but these are the current figures from CAS as at 8 December 2025.
Official
the
under
Released

Crash data for Grenada Dr, Wellington – as at 8 Dec 2025
Factors
Page 5 of 6
This information must be read in conjunction with the Caveats on the first page of this spreadsheet.
1982
Factors contributing to 2015-2025* crashes on Grenada
Road, Wel ington
Act
Crash factor
Count
Alcohol and/or Drugs proven
Alcohol and/or Drugs suspected
Disabled, old age or il ness
Failed to give way or stop
6
Fatigue
Incorrect lanes or position
1
Miscellaneous factors
2
Overtaking
Information
Pedestrian factors
Poor handling
4
Poor judgement
2
Poor observation
7
Position on Road
Road factors
1
Official
Travel Speed
Vehicle factors
the
Weather
TOTAL factors
23
* 2025 data is not yet complete in CAS, but these are the current figures from CAS as at 8 December 2025.
Factors are counted once against a crash - that is, two fatigued drivers count as one fatigue crash factor.
under
Count is the number of crashes where that factor was a contributing factor to the crash. The Total is the sum of all the factors contributing to crashes.
Because a crash may have multiple factors there wil be more total factors than crashes resulting in factors totalling more than 100% of all crashes
Where Alcohol and/or Drugs are a contributing factor to a crash, this factor has been separated into either "Proven" or "Suspected".
Where a crash has both a proven and suspected factor against it, only the factor "Proven" is counted.
Released

Crash data for Grenada Dr, Wellington – as at 8 Dec 2025
Maps
Page 6 of 6
This information must be read in conjunction with the Caveats on the first page of this spreadsheet.
Map of 2015-2025* crashes on Grenada Drive, Wellington
* 2025 data is not yet complete in CAS, but these are the current figures from CAS as at 8 December 2025.
1982
CAS wil group crashes that are near each other depending on the zoom level of the map.
This should not be interpreted as where crash hotspots are.
The number in the circle is the number of crashes on that section of road.
The colours around the circle show the proportion of crashes of different severities - see legend to the right of this diagram.
Act
Where there are individual crashes that are not grouped, they show as single pin - see legend to the right of this diagram.
Information
Official
the
under
Released

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