An anonymous reader quotes a report from Deutsche Welle: The truck that plowed into a Berlin Christmas market, killing 12, came to a halt due an automatic braking system, according to German media reports on Wednesday. The automatic braking system potentially saved the lives of many more people in the recent terrorist attack. An investigation by newspaper "Suddeutsche Zeitung" and broadcasters "NDR" and "WDR" found the Scania R 450 semi-trailer stopped after between 70 and 80 meters (250 feet). The system was reportedly engaged after sensing a collision. Previous reports speculated that the truck had driven erratically and stopped due to the heroic actions of the truck's Polish driver, who lay fatally wounded in the cabin. In 2012 the European Union adopted regulations requiring all new trucks exceeding 3,500 kilograms be fitted with advanced emergency braking systems. The systems initially alert drivers and then take evasive action. The regulation was adopted to reduce the number of rear end collisions by trucks.