2021 crashes in Christchurch
1,922 crashes police-reported, 628 hurt somebody, 15 people were killed and 122 people were seriously hurt. Up 1% on 2020 for injury crashes.
By severity
Severity is the worst injury in the crash; the bars count crashes, the tiles count people. The 1,294 damage-only reports sit under the trend, they rise and fall with how willing people are to fill in a form.
Where they happened
Read from each crash’s coordinates, the outline its point falls inside.
The roads it named most
Counting every crash that named the road, a link is the map filtered to it. The corner the year kept returning to: Blenheim Road & Main South Road, 8 crashes that year.
The corners it kept returning to
The two roads a crash named together, ranked, each opens its own pairing page.
Who was involved
Crashes in which that kind of road user appears, one crash can carry several.
The conditions
91% urban. 16% on a state highway. 1,909 named a corner or a second road. 99 fell on a holiday, Christmas / New Year 44, Easter 22, Queen's Birthday 17, Labour Weekend 16. The street lights were on for 584, off for 1,017 and absent for 137.
Speed zones
Posted speed limit where the crash was recorded, the same bars the whole-record page draws. Faster zones kill more often per crash.
What they hit
What the reports say was struck, a crash can hit several things and most hit nothing at all.
The weather it happened in
A second condition rode some of them, frost on 33, strong wind on 29.
How the crossing was controlled
The control CAS recorded at the spot, a crash pinned to a corner still counts the crossing’s control, not which rule was broken.
The road itself
The way the road ran: 1,527 on a two-way road, 381 on a one-way street, 14 on off the road. 95 were on a hill road. 8 left the sealed road. The uncommon spots: 26 on a bridge, 24 a motorway ramp, 17 an overpass, 11 a speed hump, 8 an underpass. Roadworks marked 10, a temporary speed limit 21, an advisory speed 33.
The vehicles on the day
A crash can carry several, the bikes, motorbikes and trucks are counted with the road users above.
The way they were travelling
The direction CAS recorded for the unit that started the crash: where the report gives one.
The people who died, 15
Every fatal crash in the record in 2021, the roads it named:
- Sumner Road at Dump
- Governors Bay Teddington Road at Church Lane
- Main North Road at Darroch Street
- Bexley Road at Bridge Street
- Pound Road at Roberts Road
- Governors Bay Road at Omaru Road
- Christchurch Northern Motorway at Queen Elizabeth II Drive Off Ramp
- Bridle Path Road at Ferrymead Park Drive
- Riccarton Road at Hansons Lane
- Halswell Junction Road at Shands Road
- Marine Parade at Shackleton Street
- Off Road Bush Inn Shopping Car Park
- Marshland Road at Mairehau Road
- Halswell Junction Road at Shands Road, 2 people
Other years
The record behind this
Every figure comes from NZTA’s Crash Analysis System, the national record of crashes a police officer wrote up, filtered to Christchurch City. Damage-only and minor crashes are underreported everywhere; the killed and seriously-hurt numbers are the ones that hold.
The map, the repeat corners and the whole-record charts are at /crashes. This page as markdown: /crashes/2021.md.
Questions, answered briefly
1,922 police-reported crashes, 628 hurt somebody, 15 people killed and 122 people were seriously hurt, 618 minor injuries. The police crash record counts crashes where someone was hurt or a report was filed, most minor bumps never reach it.
Blenheim Road and Main South Road, 8 crashes that year.
Christchurch Central, 163 crashes, read from each crash’s coordinates against the suburb outlines.
16% were on a state highway. 99 fell on a holiday (Christmas / New Year 44, Easter 22, Queen's Birthday 17, Labour Weekend 16).