Blockchain-based Booth-less Tolling System using GPS and Image Processing

India as a country is aggressively investing in building better roads and highways, but due to the costly nature of these projects, they are done in the form of a Public Private Partnership. This makes the efficient collection of toll tax highly important to incentivize further development of infrastructure. Currently, the FASTag system of tolling is employed in India which is resulting in unorganized and inaccurate revenue collection, physical problems like tags getting damaged, traffic congestion and reduced fuel efficiency. To solve these problems, a blockchain-based virtual tolling system using GPS and Image processing is proposed. In this paper, appropriate hardware and software designs were involved to develop a GPS-based highway toll collection system further complemented with image processing to get the number plate data. A blockchain-based technology to implement a decentralized, secure toll collection mechanism that uses blockchain smart contracts to store data.