NS Hispeed is part of NS (Dutch Railways) and offers high speed rail links throughout Europe. The trains in the company's network present a very fast - up to 300 kph - and very comfortable alternative to the car, but still a lot of people seem to prefer long hours behind the wheel and the risk of traffic jams and speeding tickets. To make them see the error of their ways, they placed police cars with speed camera's next to main motorways leading to the Dutch border. These were hidden behind a trailer - a well known trick of the traffic police- that had a billboard on it, telling you to "treat yourself to the highspeed train".
Agency: Only Amsterdam, The Netherlands.