Wendy Weijermars

SWOV Institute for Road Safety Research | SWOV

Connected and automated vehicles have become more common in recent years, increasing the need to assess their societal level impacts. In this paper a methodology is presented to explore and define these impacts as a starting point for quantitative impact assessment. The many interrelations between impacts increases the complexity of obtaining a com...

Connected and automated vehicles have become more common in recent years, increasing the need to assess their societal level impacts. In this paper a methodology is presented to explore and define these impacts as a starting point for quantitative impact assessment. The many interrelations between impacts increases the complexity of obtaining a com...

This study aims to quantify the safety impacts of Connected and Automated Vehicles (CAVs) in mixed traffic environments in three calibrated and validated urban road networks including Manchester (UK), Leicester (UK), and Athens (GR). Road safety impacts were investigated through traffic microsimulation techniques combined with application of the Su...

Connected and automated vehicles have become more common in recent years, increasing the need to assess their societal level impacts. In this paper a methodology is presented to explore and define these impacts as a starting point for quantitative impact assessment. The many interrelations between impacts increases the complexity of obtaining a com...

Introduction Costs related to road crashes represent an important societal burden. Additionally they constitute an essential input variable to assess the cost efficiency of road safety measures. While most attention is usually spent on costs related to fatal crashes, this paper focuses on costs related to serious injuries. Method A review of these...

Economic evaluations of road safety measures are only rarely published in the scholarly literature. We collected and (re-)analyzed evidence in order to conduct cost-benefit analyses (CBAs) for 29 road safety measures. The information on crash costs was based on data from a survey in European countries. We applied a systematic procedure including co...

This paper gives an overview of official monetary valuations of the prevention of road crashes, road fatalities and injuries in 31 European countries. The values have been made comparable by converting them to Euro in 2015-values, adjusted by purchasing power parities. The monetary valuation of preventing a fatality varies from 0.7 to 3.0 million E...

The European Road Safety Decision Support System (roadsafety-dss.eu) is an innovative system providing the available evidence on a broad range of road risks and possible countermeasures. This paper describes the scientific basis of the DSS. The structure underlying the DSS consists of (1) a taxonomy identifying risk factors and measures and linking...

The EU research project SafetyCube pays specific attention to serious road injuries, defined as nonfatal road traffic casualties with an injury severity level of MAIS3+. By means of surveys, information was collected on current practices concerning the estimation of the number of MAIS3+ casualties and on costs related to serious road injuries in di...

To determine accurately the number of serious injuries at EU level and to compare serious injury rates between different countries it is essential to use a common definition. In January 2013, the High Level Group on Road Safety established the definition of serious injuries as patients with an injury level of MAIS3+(Maximum Abbreviated Injury Scale...

Background: Information about the burden of (non-fatal) road traffic injury is very useful to further improve road safety policy. Previous studies calculated the burden of injury in individual countries. This paper estimates and compares the burden of non-fatal serious road traffic injuries in six EU countries/regions: Austria, Belgium, England, T...

This report serves as background report and research account for the Road Safety Monitor 2017 (R-2017-17) and discusses: - developments in number of road fatalities and serious road injuries - developments in demographics, mobility and risk - developments in road safety indicators, and - road safety measures that have been taken

Background: To explore the impact of road injuries for different age groups, this study compares the health burden of road injuries in young adolescents-12 to 17 years of age-to those for older age groups. Young adolescents are underrepresented in road fatalities. However, their inexperience, developmental stage and use of bicycles may expose them...

Background Reliable data on the number of serious road injuries is a prerequisite for monitoring and evaluation purposes. In January 2013, the High Level Group on Road Safety representing all EU Member States established the definition of serious injuries as in-patients with an injury level of MAIS3+ (Maximum Abbreviated Injury Scale). Since then i...

Background: The consequences of injuries in terms of disabilities and health burden are relevant for policy making. This paper provides an overview of the current knowledge on this topic and discusses the health burden of serious road injuries in the Netherlands. Methods: The overview of current knowledge on disabilities following a road crash i...

This paper discusses the characteristics and injury patterns of serious road injuries (MAIS2+ inpatients) in the Netherlands. In the Netherlands, the actual number of serious injuries is estimated by linking police data to hospital data. The distribution of serious road injuries over 1) travel mode and gender and 2) crash type and age are compared...

Over the past decades, road safety in highly-motorised countries has made significant progress. Although we have a fair understanding of the reasons for this progress, we don’t have conclusive evidence for this. A new generation of road safety management approaches has entered road safety, starting when countries decided to guide themselves by sett...

Purpose Safety performance indicators (SPIs) are measures reflecting the operational conditions of the road traffic system that influence the system’s safety performance. Within the EU funded SafetyNet project, SPIs were developed for seven road safety-related areas: alcohol and drugs; speed; protective systems; daytime running lights; vehicles (...

Road safety forecasting and ex-ante evaluation of road safety policy are useful tools in policy making. This paper illustrates the use of these instruments in policy making in the Netherlands. As part of an interim evaluation of achieving Dutch road safety targets, the numbers of fatalities and serious road injuries were estimated for 2020. From th...

The efficiency assessment of road safety measures is considered to be an extremely useful tool in decision making; in particular, cost-benefit and cost-effectiveness analyses are carried out in several countries, in a more or less systematic way. The objective of this paper is to present findings from a review of current practices for road safety a...

In the 1990s, the Institute for Road Safety Research (SWOV) in the Netherlands introduced the vision of sustainable safety. In a sustainably safe traffic system, crashes are prevented as much as possible, and when prevention is not possible, the probability of severe injury is reduced to almost zero. In 1998, implementation of the vision commenced...

In the 1990s, the Institute for Road Safety Research (SWOV) in the Netherlands introduced the vision of sustainable safety. In a sustainably safe traffic system, crashes are prevented as much as possible, and when prevention is not possible, the probability of severe injury is reduced to almost zero. In 1998, implementation of the vision commenced...

Congestion is increasing in many urban areas. This has led to a growing awareness of the importance of accurate traffic-flow predictions. In this paper, we introduce a prediction scheme that is based on an extensive study of volume patterns that were collected at about 20 urban intersections in the city of Almelo, The Netherlands. The scheme can be...

This paper describes the variation in traffic volumes in the Dutch city of Almelo. For this study, we used traffic counts which were collected at about 20 intersections from September 2004 until September 2005. The objective of this study is to provide insight in both periodic and random variation in urban traffic volumes. This insight is used by p...

Urban traffic data can be used for purposes besides actuated signal control. However, it is important for the data to be of sufficient quality. This paper discusses a procedure for detecting invalid traffic data produced by single-loop detectors at signalized intersections. Basic quality checks - based on minimum and maximum flow thresholds-are use...

Urban traffic data can be used for purposes besides actuated signal control. However, it is important for the data to be of sufficient quality. This paper discusses a procedure for detecting invalid traffic data produced by single-loop detectors at signalized intersections. Basic quality checks—based on minimum and maximum flow thresholds—are used...

Historical traffic patterns can be used for the prediction of traffic flows, as input for macroscopic traffic models, for the imputation of missing or erroneous data and as a basis for traffic management scenarios. This paper investigates the determination of historical traffic patterns by means of Ward's hierarchical clustering procedure. Days wer...

The estimation of Average Annual Daily Traffic (AADT) on the basis of shortterm traffic counts provides some insight into seasonal and day-to-day variability of urban traffic flows. The insight into the differences in daily flow profiles between weekdays is however limited. In this contribution, daily flow profiles on a main route in a city in The...

TRAIL (Netherlands Research School for Transport, Infrastructure and Logistics) is a joint postgraduate Research School of the Delft University of Technology, Erasmus University Rotterdam and the University of Groningen. Thesis (Ph. D.)--Universiteit Twente, 2007. Includes bibliographical references (p. 161-172). Includes vita.

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 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 t...