Maintenance of the Québec road network remains a major challenge for all operational personnel. In the early 2000s, given the difficulties presented by decision-making and the growing need to improve management of winter maintenance operations, the Ministère des Transports initiated a pilot project to develop a winter maintenance decision support system adapted to the specific needs of its operational personnel. This decision support system was intended to give the personnel concerned continuous access to quality road weather information during the winter period. To concretize this decision support system, a data acquisition system was created. This data acquisition system allows collection of data from weather and road sensors. In addition, a website (the DVH-6024 system) was created to allow rapid dissemination of the road weather information collected. The information accessible via this website concerns both weather forecasts and weather and road observations. The system also allows extraction, processing and use of the data collecting in the past through the road weather station network. This last functionality allows users to perform post-event analyses, which can be very useful to validate the effectiveness of the treatments applied. The DVH-6024 system is a sophisticated road weather data acquisition and processing tool. It allows complete and rapid analysis of all the road weather data necessary for winter maintenance decisions.