An epidemiological study of the risk of cycling in the dark: the role of visual perception, conspicuity and alcohol use.

To curtail the rising numbers of cyclists seriously injured in road crashes, more insights are needed into the factors that contribute to these crashes. For instance, darkness is known to be associated with higher injury rates, but little is known about the relative influence of factors such as poor conspicuity, impaired perception and alcohol use among cyclists. To examine these factors, the present study analyzed the epidemiological crash data for three meteorological light conditions: daylight, late evening darkness and early morning darkness; for two crash types: crashes with (M-crashes) and without motorized traffic (NM-crashes); and for different age groups.

Crash involvement of motor vehicles in relationship to the number and severity of traffic offenses. An exploratory analysis of Dutch traffic offenses and crash data.

Objective: To establish the statistical relationship between offenses and crashes when the unit of analysis is the vehicle instead of the driver, to show the influence of the severity (e.g., minor speed offenses) on this relationship, and to research whether the form of this relationship is similar in different enforcement contexts.

The effect on road safety of a modal shift from car to bicycle.

Objective: To describe and apply a method to assess the effect on road safety of a modal shift from cars to bicycles.

Method: Ten percent of all car trips shorter than 7.5 km were assumed to be replaced by bicycle trips.

Injury pattern, injury severity, and mortality in 33,495 hospital-admitted victims of motorized two-wheeled vehicle crashes in The Netherlands.

Background: Road traffic accidents involving motorized two-wheeled vehicle (MTV) riders often result in severe morbidity and mortality. The aim of this nationwide study is to describe the influence of the type of motorized two-wheeled vehicle on the patient injury severity and mortality on hospitalization, after MTV accidents in The Netherlands.

Methods: Data from the Institute for Road Safety Research and the Hospital Trauma Databases were analyzed.

Estimating the number of serious road injuries in the Netherlands.

Purpose: This paper describes a new estimation method of the number of road injuries in The Netherlands.

Methods: The bases for this method are the hospital inpatient registry and the police crash record database. Both databases contain errors and omissions.