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|Title: ||Road Safety Performance Indicators: Manual. Deliverable D3.8 of the EU FP6 project SafetyNet|
|Authors: ||Auerbach-Hafen, Kerstin|
Vis, Martijn A.
|Issue Date: ||2007|
|Publisher: ||European Commission, Directorate-General Transport and Energy|
|Citation: ||HAKKERT, A.S., and GITELMAN, V., 2007. Road Safety Performance Indicators: Manual. Deliverable D3.8 of the EU FP6 project SafetyNet.|
|Abstract: ||Safety performance indicators (SPIs) are measures (indicators), reflecting those operational
conditions of the road traffic system, which influence the system’s safety performance. Basic
features of SPIs are their ability to measure unsafe operational conditions of the road traffic
system and their independence from specific safety interventions. SPIs are aimed to serve
as assisting tools in assessing the current safety conditions of a road traffic system,
monitoring the progress, measuring impacts of various safety interventions, making
comparisons, and for other purposes.
Seven problem areas in road safety were selected for the development of SPIs in Europe,
they are: alcohol and drug-use; speeds; protective systems; daytime running lights; vehicles
(passive safety); roads (infrastructure) and the trauma management system.
The theory behind the development of SPIs in each of the seven safety areas was presented
by Hakkert et al (2007)1. The data obtained from the cooperating countries and the
comparisons of safety performance of 27 countries2, in terms of the estimated SPIs, were
presented in two other reports3 – Vis and van Gent (2007a), Vis and van Gent (2007b).
This report is called a Manual as it should assist the countries in establishing the necessary
systems of data collection for producing national SPIs, in each one of the predefined safety
fields, and to make them comparable on a European level. For each safety area, the report
defines quantitative SPIs, demonstrates existing practices for their measurements, provides
best practice examples (when available), and details the procedures which are necessary to
collect and process the required data for the estimation of the SPIs' set on a national level.
Recognizing the potential for road safety improvements coming from the use of harmonized
SPIs across the EU, enabling benchmarking as a proven tool in road safety policy, the
Member States are encouraged to seek ways of applying a uniform methodology for
producing national SPIs. The procedures and methods presented in the Manual should be
treated as minimum quality requirements for producing national SPIs, in each one of the
predefined safety fields.
In addition, the report provides a more general theoretical background concerning the
sampling issues in estimating SPIs (in general and in the context of specific SPI areas).
Regarding setting up an SPI survey, the main questions considered are: sampling procedure
to obtain a national sample; sampling size; sampling error; stratified sampling (combination
into a single SPI by weighting); representativeness of the results and estimating confidence
intervals of the SPI values. These issues are discussed in Chapter 2 and in the Statistical
|Description: ||This is a report. It is also available at: http://ec.europa.eu/transport/wcm/road_safety/erso/safetynet/fixed/WP3/sn_wp3_d3p8_spi_manual.pdf|
|Sponsor: ||Project co-financed by the European Commission, Directorate-General Transport and Energy [Contract No: TREN-04-FP6TR-S12.395465/506723]|
|Appears in Collections:||Official Reports (Design School)|
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