This project studies how the HCT-concept (High Capacity Transport) can be applied in cities, by performing pilots in Varberg and Stockholm. The project will test the hypothesis that the HCT-concept will improve both productivity and transport efficiency and thereby reduce CO2 by up to 40%. The pilots include tests of new optimized trucks and new concepts with connected trucks, road machines and bridges. Demonstration of digital access control including geofencing of speed and routes will be included. A system analysis on a societal level will be performed, with the target to incorporate HCT-city in the existing HCT roadmap. The results will be a foundation for a strategy including dispensations and regulatory changes on national roads and a recommendation how HCT-city can be designed to reach the highest possible productivity and transport efficiency.