Recent research in enhancing emergency vehicle communication efficiency using Vehicular Ad Hoc Networks (VANETs) has focused on reducing latency, improving reliability, and ensuring priority routing for ambulances and other emergency responders. Studies have introduced hybrid RF/VLC systems to overcome congestion and signal blockage in dense traffic, enabling faster multi-hop message dissemination through both radio and visible-light channels. Dynamic clustering and metaheuristic-based approaches, such as dragonfly optimization, have been applied to ensure optimal cluster-head selection and efficient emergency message broadcasting in rapidly changing vehicular topologies. Additionally, privacy-preserving warning systems have been proposed to alert nearby vehicles of approaching emergency units without exposing sensitive location data. Integrations with navigation technologies like India’s NAVIC have further enhanced route coordination and response times. Overall, these advancements aim to enable seamless, low-latency, and secure communication mechanisms that prioritize emergency vehicles and ensure faster response during critical situations.