Traffic congestion occurs when traffic demand exceeds road capacity, or when an incident such as a traffic crash, a vehicle breakdown occurs or temporary roadworks take place, all of which temporarily reduce capacity and restrict traffic flow. Congestion crashes mainly occur at the tail end of a traffic jam. There, the speed of the traffic flow decreases sharply, which coincides with frequent and hard braking, and with a high risk of rear-end crashes.
It will probably take at least several decades for completely self-driving vehicles to become commercially available, if they ever will. Yet, vehicles in which part of the driving task is automated, for example automated braking, accelerating and steering, are already available.
Since the seventies, the safety of car occupants has greatly improved, expressed in both the number of road crash fatalities and in mortality risk. Since 2011, however, the number of road deaths among car occupants has not decreased.
About one third of the road deaths on Dutch roads occur at intersections. Within the urban area, this amounts to half and outside the urban area to slightly less than a quarter of the road deaths. A roundabout is the safest kind of intersection, because there are fewer conflict zones, because speed is lower, and impact angles are smaller than at a conventional intersection.
In 2009-2018, an annual average of 51 young drivers and passengers (aged 18-24) were killed in traffic. For young drivers, fatal crash risk is 4,5 times higher than for more experienced drivers. Crash risk is highest during the first year after acquisition of the driving licence, and subsequently decreases fast as young drivers gain more experience
This fact sheet describes the road safety aspects of public transport and of level crossings – places where road and rail networks intersect. Public transport vehicles comprise buses, trams, light rail vehicles and trains. This fact sheet relates to road casualties involving a public transport vehicle: suicide and casualties caused by a lack of social safety (violence in public transport) are not discussed. Apart from public transport and level crossings, the road safety of taxis is also addressed.
In the Netherlands, on average, more than 50 people die every year in a submerged vehicle crash. More than two thirds die from drowning. The casualties are mainly car occupants, while cyclist and mobility scooter fatalities are also numerous. Casualties are mostly male and aged 18-24. Despite the large number of casualties, not much is known about possible causes of crashes in which vehicles end up in the water. Foreign studies show that alcohol and drug use, and/or speeding are often involved.
Risky road user behaviour is behaviour that adversely affects road safety, such as driving under the influence of alcohol, drugs or medicines, speeding, inappropriate speed, distracted or fatigued driving, red light negation, and failure to use or misuse means of protection (motorcycle or moped helmet, seatbelt). Younger road users more often display risky behaviour than older road users, and men more often than women.
A safe infrastructure is of vital importance to pedestrians and cyclists. In 2010-2019, 40% of the number of road deaths were pedestrians or cyclists. In 2018, they even made up 69% of the number of seriously injured road users. If pedestrians or cyclists are involved in crashes with motorised vehicles driving faster than 30km/h, they run a significant risk of severe or fatal injuries. The design of residential areas and homezones should therefore ensure that driving speed does not exceed 30km/h.
A pedestrian fall or collision is only a road crash (pedestrian crash) when a moving vehicle is involved. Between 2010 and 2019, an annual average of 59 pedestrians were killed in road crashes. Between 1999 and 2019, the number of pedestrian road deaths dropped by 62%. Crash risk for pedestrians equals that for cyclists, while for (light) moped riders crash risk is 3 to 4 times higher, and for occupants of cars/delivery vans 7 to 8 times lower.