Delivery and installation of 300 meters of Haisafe® T3 barriers on the Coolsingel of Rotterdam. The Haisafe® T3 concrete barrier has been designed by Haitsma Beton primarily for temporary situations where road works are underway. The system is 6 metres long, 655 mm high and only 35 cm wide. The low weight of 1,500 kg (more than 10 percent lighter than other available systems) means that fewer raw materials are needed and more elements can be delivered per load. Using the easily attached connections, the elements can be quickly positioned, assembled, disassembled and shifted, even after impact. Rubber strips on the underside prevent any damage to freshly laid asphalt and ensure good rainwater drainage. This also applies to the ramp elements (3.00 metres) that are also supplied by Haisafe®.