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Cars are becoming smarter; automatic systems like self-parking or adaptive cruise control are already on the market, and many new technologies are being tested and are soon to come on line. Carmakers have joined with research institutes and state regulators in a European project to speed up the deployment of “intelligent driving”.Maurice Kwakkernaat, a researcher in integrated vehicle safety at TNO, explained more as he drove a test vehicle around a track in the Netherlands: “In this car we have equipment to control the vehicle, to communicate with other vehicles, to position it, and also to log all this information. Here on the roof we have antennas for communications, positioning… and here in the front of the car we have sensors like cameras and the radar and they’re use to detect objects near the vehicle.”If cars can communicate with each other and with roadside infrastructure, driving will become safer and greener. At an industry event on a Dutch airfield, developers from many EU countries presented their technologies.Maurice Kwakkernaat added as he drove: “What you see right now is that I’m not touching the pedal, the car is in automatic mode. The only thing I’m doing is steering.” One system replicates the speed of the car just ahead – so the distance always remains the same, as Kwakkernaat explained: “What happens is the information from the car in front of us – its speed, the acceleration, braking – is communicated to this vehicle; that information is combined with sensor information from this vehicle – the radar, the camera. And as you see right now, the other vehicle brakes and we do exactly the same thing, so we follow automatically.”Smarter roadside infrastructure can improve traffic and save fuel. In a demonstration, an approaching car talks wirelessly to the traffic lights at the intersection, making the red light switch to green. The onboard computer confirms that there is no need to stop. For heavy trucks, every traffic stop avoided is a litre...