Karawanken Tunnel Extension Project

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.

DELTA provides a highly reliable range of retroreflectometers for measuring retroreflection of pavement markings and traffic signs.

ShoulderMaster manufactures custom-made road construction equipment designed to deliver a superior performance and improved safety features compared to traditional road building equipment and methods.