Enhanced A* Algorithm to reduce CO2 emission and fuel consumption in Intelligent Transportation Systems

The huge outburst of vehicles on road cause enormous traffic congestion and environmental pollution which impact human health. Appropriate re-routing of vehicles can be a savior to manage congestion and reduce environmental degradation. In this paper, a novel re-routing scheme named as Enhanced A* algorithm is being proposed that uses not only shortest distance but also real time road condition and traffic information to re-route vehicles. Proposed algorithm outperforms while analyzing it with well-established path planning algorithms A* and Dijkstra with respect to waiting time, CO
2
emission, fuel consumption, travel time and vehicular speed.