Uetliberg Tunnel, Zurich

Westcotec in Norfolk, England, designs, manufactures and supplies a comprehensive and complete range of vehicle-activated road signs and interactive signs to meet the need for any traffic control system requirement. These include speed limit signs, speed camera signs, warning signs and school safety signs.

Tolplan is an independent South African company of professional engineers and financial and information technology professionals who offer a variety of specialized toll road management and engineering consulting and information technology services. The full-time core personnel of the company amounts to about 40.

Cyclone Technology offers a range of marking removal and cleaning systems for the road traffic industry.