chch.live a year of crashes, counted

2011 crashes in Christchurch

2,009 crashes police-reported, 739 hurt somebody, 14 people were killed and 153 people were seriously hurt. Down 14% on 2010 for injury crashes.

Crashes on record
2,009
Hurt somebody
739
People killed
14
Seriously hurt
153
Minor injuries
772

By severity

fatal 13
serious 144
minor 582
damage only 1,270

Severity is the worst injury in the crash; the bars count crashes, the tiles count people. The 1,270 damage-only reports sit under the trend, they rise and fall with how willing people are to fill in a form.

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: Marshland Road & State Highway 74, 23 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

trucks 156
people on bicycles 140
motorcycles & mopeds 140
people walking 79
buses 33

Crashes in which that kind of road user appears, one crash can carry several.

The conditions

Bright sun 762
Overcast 590
Dark 560
Twilight 97

89% urban. 19% on a state highway. 2,009 named a corner or a second road. 102 fell on a holiday, Christmas / New Year 48, Queen's Birthday 21, Easter 17, Labour Weekend 16. The street lights were on for 546, off for 58 and absent for 53.

Speed zones

10 km/h 2
30 km/h 4
40 km/h 1
50 km/h 1,466 10 killed
60 km/h 235 3 killed
70 km/h 74
80 km/h 145 1 killed
100 km/h 82

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

a parked vehicle 191
a post or pole 105
a fence 93
a kerb 49
a tree 49
a traffic island 38
a traffic sign 33
a phone box or power cabinet 32

What the reports say was struck, a crash can hit several things and most hit nothing at all.

The weather it happened in

fine 1,702
light rain 216
heavy rain 47
mist or fog 33
snow 11

A second condition rode some of them, frost on 17, strong wind on 11.

How the crossing was controlled

not recorded 802
traffic signals 424
a give way 400
no marked control 256
a stop sign 126
a school patrol 1

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

2 lanes 1,317
4 lanes 308
6 lanes 143
3 lanes 118
1 lane 67
5 lanes 54
7 lanes 1

The way the road ran: 1,920 on a two-way road, 83 on a one-way street, 6 on off the road. 74 were on a hill road. 19 left the sealed road. The uncommon spots: 25 on a bridge, 3 a rail crossing, 2 a motorway ramp. Roadworks marked 2, a temporary speed limit 27, an advisory speed 27.

The vehicles on the day

cars & station wagons 1,785
SUVs 295
vans & utes 248
taxis 16
other vehicles 2

A crash can carry several, the bikes, motorbikes and trucks are counted with the road users above.

The way they were travelling

heading west 259
heading east 249
heading north 247
heading south 240

The direction CAS recorded for the unit that started the crash: where the report gives one.

The people who died, 14

Every fatal crash in the record in 2011, the roads it named:

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/2011.md.

Questions, answered briefly

How many crashes were there in Christchurch in 2011?

2,009 police-reported crashes, 739 hurt somebody, 14 people killed and 153 people were seriously hurt, 772 minor injuries. The police crash record counts crashes where someone was hurt or a report was filed, most minor bumps never reach it.

What was the worst corner in Christchurch in 2011?

Marshland Road and State Highway 74, 23 crashes that year.

Which suburb had the most crashes in 2011?

Christchurch Central, 175 crashes, read from each crash’s coordinates against the suburb outlines.

Where and when did 2011’s crashes cluster?

19% were on a state highway. 102 fell on a holiday (Christmas / New Year 48, Queen's Birthday 21, Easter 17, Labour Weekend 16).