De veiligheid van lange 4-0 en 3-1 contraflow-systemen [The safety of long 4-0 and 3-1 contraflow systems]

For the Dutch project "Filearm wegbeheer", it was investigated whether the length of contraflow systems affected driving behaviour and acceptance for the road user. The study showed that driving behaviour becomes less stable on such stretches of road with a length over 8 km. It was also shown that extra attention should be paid to the design of...

Automatic visual information processing and expectations in traffic

Automatic information processing (AVIP) in traffic refers to a driver state, in which expectations have replaced a large part of the active information intake exerted by a highly attentive driver. Instead of actively scanning the visual environment, the driver only passively monitors the outside world, requiring little attention. This state has...

Measuring distraction: The Peripheral Detection Task

The possibilities for measuring workload or driver distraction by means of the Peripheral Detection Task during driving with in-vehicle equipment were investigated in a driving simulator experiment. The results show that the Peripheral Detection Task is a very sensitive method of measuring peaks in workload, induced by either a critical scenario...

Driving and road sign perception

4-0 and 3-1 contraflow workzones areas: Effects on driving behaviour, workload and comfort

In contraflow workzone areas, traffic of one carriageway is guided to the other carriageway with decreased lane width, either partially (3-1 type workzone) or completely (4-0 type workzone). According to the Dutch guidelines for workzone areas, a contraflow system is only allowed to have a maximimi length of 4 km, since otherwise it is supposed...

Combining dynamic route information panels with other signs: Its effect on driver information intake

A driving simulator study investigated the consequences of putting various forms of dynamic and fixed information on top of each other on the capacity of drivers to pick up information from the respective sources. Three types of signs were involved: (1) Dynamic route information panels (DRIPs); (2) Section control panels, displaying current...

Traffic safety in the Westerschelde tunnel in case of emergency

The future Westerschelde tunnel will consist of two separated tunnel tubes of 6.6 km in length, one for each direction. The cross-section of each tube is just wide enough to contain two lanes of 3.5 metres wide. Due to financial constraints a separate tube for pedestrians will not be built and the cross-section of the tube does not allow any...

Advies bocht zuidbaan A9 ter hoogte van Rottepolderplein

De Dienstkring Haarlem van Rijkswaterstaat heeft geconstateerd dat regelmatig ongevallen

Road design, cognitive road classification and driving behaviour

Er kan nog een tram komen [Another tram approaching]

Large differences in weight or speed can cause unsafety in traffic. In urban environments, the tram is a potential danger. A conflict between a tram and other traffic oftentimes causes serious injury for the other road user. Separating the tram from other traffic limits the risks involved, but lack of space does not always allow this. An...