The paper discusses the advantages of utilizing winter conditions to increase the weight tolerance of frozen roads while safeguarding vulnerable bridges. It introduces the concept of geofencing as a tool to ensure that heavy trucks reduce their speed when crossing these bridges. A tool that can be useful for all bridges. Geofencing technology was tested in a research project during winter 22/23 involving trucks from Volvo and Scania. The project was financed by the Swedish Transport Administration. Two geofencing technologies were evaluated: Scania’s “active” geofencing, which allowed the truck to automatically maintain the designated speed limit over the bridge, and Volvo’s “passive” geofencing, where the driver received warnings and had to manually slow down if necessary. The results indicated that active geofencing effectively ensured trucks adhered to speed limits and drivers generally had positive experiences with geofencing. Regarding policy and regulation, the paper explores the feasibility of implementing geofencing technology and suggests that current legislation can accommodate it. Recommendations are made for regulations based on functional requirements and self-monitoring systems to ensure compliance. In conclusion, the paper demonstrates that geofencing technology can effectively protect bridges and offer substantial societal benefits. It also outlines potential policy and regulatory frameworks for the widespread adoption of this technology to safeguard bridges and optimize transportation.