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December 2010
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diary events for that month.

Engineering

London Road Safety Unit

Borough spending

Results

Entering a 20mph zone

The tables below show before and after collision data, along with a percentage change in collisions, for local safety schemes and 20 mph zones.

Before and after figures are for up to 36 months from implementation.

Local safety schemes
Area Number
of schemes
Collisions
before
Collisions
after
% change
Central 146 2064 1515 -27
North 108 1347 1031 -23
South 137 1752 1146 -35
Total 391 5163 3692 -29

20mph zones
Area Number
of zones
Collisions
before
Collisions
after
% change
Central 24 536 367 -32
North 24 231 167 -28
South 27 482 308 -36
Total 75 1249 842 -33

Local safety schemes and 20mph zones
Area Number
of schemes
Collisions
before
Collisions
after
% change
Central 170 2600 1882 -28
North 132 1578 1198 -24
South 164 2234 1454 -35
Total 466 6412 4534 -29