comparing areas to stimulate progress in road safety … · 29 november 2012 benchmarking road...

Benchmarking road safety 1 29 november 2012

Comparing areas to stimulate progress in road safety

dr. Letty Aarts (SWOV) ing. Rob van den Ban (city of Amsterdam)

29 november 2012 Benchmarking road safety 2

How it all started…

29 November 2012 Benchmarking road safety 3

Amsterdam 0.79 million inhabitants 0.88 million bikes


Differences and similarities between areas…


Grouping comparable areas

The Hague

Utrecht Rotterdam


Do we understand this?

The Hague

Amsterdam

Utrecht

Rotterdam


Characteristics of G4 in the Netherlands (2008)

City Area (acers) Inhabitants Road length (km)

KSI crashes (2000-2009)

Amsterdam 16 593 747 093 1 980 2 752

Rotterdam 20 889 595 504 2 113 1 944

Utrecht 9 476 294 737 1 159 974

The Hague 8 190 475 681 1 151 1 098


Explanations for differences (2008)

City Inhabitants/ area

Road length/1000 inhabitants

KSI crashes/ inhabitants

KSI-crashes/ road length

Amsterdam 45 2.65 3.68 1.39

Rotterdam 29 3.55 3.26 0.92

Utrecht 30 3.93 3.30 0.84

The Hague 58 2.42 2.31 0.95


Road safety patterns in G4


Share of fatal road crashes (1990-2011)


Framework and context

SUNflower studies (SafetyNet): • 1e study: SUN-countries • 2e study: SUN+6 • 3e study: SUN-flower next

PIN-studies (ETSC)

DaCoTA (2010 - 2012) RS composite index

Grouping layer


Highly urban Moderatly urban Rural mixed Rural plain Nature

Example of municipality grouping Amsterdam

Rotterdam

Utrecht

The Hague

29 november 2012 Comparing areas 13

Shares per area type Area type Share of land Share of serious

crashes

Highly urban 4.0% 22.4%

Moderately urban 9.5% 22.3%

Rural mixed 21.3% 20.0%

Rural plain 55.9% 26.7%

Nature 9.3% 8.5%

Name Title 14

Example: serious pedestrian crashes

Highly urban

municipalities

Very low share Low share Moderate share High share Very high share

29 November 2012 Benchmarking road safety 15

Concluding

• Further steps – Explanations in better exposure measures (data!) – Further in-depth explanations (risks SPIs)

• Benchmarking road safety – Grouping of homogeneous areas – Basic similarities: structure and culture layer – Tune to relevant characteristics & local views – Normalize for exposure differences in risk? policy making?

29 November 2012 Benchmarking road safety

THANK YOU FOR YOUR ATTENTION

Further information

[email protected] +31 70 317 33 79

comparing areas to stimulate progress in road safety … · 29 november 2012 benchmarking road...

Documents