Adverse weather situations reduce road visibility and can even make roads slippery, which further increases the chances of accidents. It is necessary to take preventive actions and avoid vehicular congestion in Tunnels and Parking lots, which are the hotspots of heavy emissions. Outdoor air pollution monitoring at crossroads, tunnels, and multi-level parking facilities are critically important for ensuring health and safety within the transportation networks. Oizom offers a range of outdoor air pollution monitoring systems that helps authorities in keeping a track of vehicular pollution in the urban city areas and highways. For tunnels, Oizom has Tunnel Air Quality Monitoring System that can provide accurate data on various air pollutants and weather parameters. Based on these data, threshold-based triggers can effectively activate or deactivate the ventilation system within the tunnels. Thus, saving time, effort, and electricity by providing real-time actionable air quality data to the authorities.