821 documents found.

Published: (SWOV) | Petegem, J.W.H. van; Uijtdewilligen, T.
Published: (SWOV) | Hettema, Z.J.A.; Dijkstra, A.; Schermers, G.
Published: (SWOV) | Bax, C.A.; Uijtdewilligen, T.; Kint, S.T. van der
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…

Sustainable Road Safety implies that the traffic environment is designed to rule out serious crashes and to mitigate the severity of the crashes that do happen. The human dimension is the primary focus: man who is vulnerable, makes mistakes and does not abide by the rules.

In 2016, there were 189 road deaths among cyclists in the Netherlands. This is approximately 30% of the total number of road deaths. The number of seriously injured cyclists is not exactly known. Their number in 2015 was estimated to be more than 60% of the total number of serious road injuries, which would be over 13 thousand.

In 2020, over a quarter of the total number of bicycle kilometres were cycled on pedelecs; particularly the over-65s opt for pedelecs. This is also borne out by the crash figures: in 2019 and 2020, almost one in three of the cyclist fatalities was a pedelec rider.

A 30 km/h zone is also known as a ‘zone 30’ or a 'residential area'. The zone is mostly situated within an urban area and consists of connected access roads with a 30 km/h speed limit. The areas have a residential function where slow traffic and motorized traffic mix. For this reason speeds must be low (30 km/h maximum).

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 construction of the road network and the road design have a large effect on road safety: firstly, because these make certain conflicts impossible or unlikely (e.g. physical separation of driving direction, separate cycle lanes, obstacle-free verges); secondly, because these direct the desired traffic behaviour (recognizability, predictability).