Traffic management systems are one of the most significant components of any major city. Ease of use and effective connections are essential for sustainability and growth, impacting citizens, businesses, the environment, and the economy. Nevertheless, these systems represent a major challenge when it comes to digital renovation. This paper proposes a novel intelligent traffic monitoring system for a smart city after considering the research gaps, which are yet to be explored in the current scenario. Our proposed solution presents a system model to broadcast traffic congestion updates through roadside message units. The main objective of this research is to provide real-time traffic updates to users through message units installed at intersections specifically on collector roads to improve the mobility. The proposed system can be further enhanced to provide optimal re-route suggestions to the drivers. This effort is part of a funded research project that investigates Smart Streets: Real-Time Feedback for Adaptive Traffic Signals.